How to get code page from current language input method?

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  - 1
    - A solution to warning C4251 - class needs to have dll-interface...? The following piece of code usually triggers warning C4251: 'MyClass::m_object' : class 'ThirdPartyTemplate<T>' needs to have dll-interface to be used by clients of class 'MyClass': template <typename T> class ThirdPartyTemplate { public: // Constructor. ThirdPartyTemplate() {} }; class __declspec(dllexport) MyClass { ThirdPartyTemplate<int> m_object; // warning C4251! }; Is there really anything wrong about it? Here at LKEB (www.lkeb.nl), we often get this kind of warning, when using Boost or STL. Now it appears that one can get rid of the warning, by wrapping the ThirdPartyTemplate<int> object inside a simple struct: struct WrapperStruct { ThirdPartyTemplate<int> wrappedObject; }; class __declspec(dllexport) MyClassWithoutWarning { WrapperStruct m_wrapper; // No warning! :-) }; Does this approach really solve the problem, or does it only hide the message? Kind regards, -- Niels Dekker http://www.xs4all.nl/~nd/dekkerware Scientific programmer at LKEB, Leiden University Medical Center Tag: How to get code page from current language input method? Tag: 282546
  - 2
    - __forceinline and SSE bug in VS2005? At the bottom of this message is an example of what I believe is a bug in the behavior of __forceinline when used with SSE intrinsics in Visual Studio 2005. The summary is it seems that when __forceinline is used on functions that contain SSE intrinsics, the functions are not inlined after a very small depth (something under 10 levels of functions). If __forceinline is replaced with __inline, the functions are all inlined. From what I've read, there is no way __forceinline should cause less inlining than __inline, but that's the behavior I'm seeing. Also, if the SSE intrinsics are replaced with regular C, the problem goes away as well. I know the functions don't get inlined by warning 4714 which gets raised on level 4 (not level 1 as MSDN seems to suggest), and by examining the assembly which clearly shows function calls. In the code below, the template parameter to the inlinetest function determines how many levels of function calls there are before the call to vset, which contains the SSE intrinsics. On my system, only very small numbers (around 5) will successfully be inlined - there's some ambiguity because the exact value has changed a few times and I'm not sure why. Replacing __forceinline with __inline or changing vset to not use intrinsics successfully inlines for much larger numbers (I've tested with 100). If anyone has any input on this problem - something I'm doing wrong or ways to proceed, I'd appreciate it very much. Thanks, -stephen diverdi -stephen.diverdi@gmail.com #include <stdio.h> #include <intrin.h> #define FORCEINLINE __forceinline FORCEINLINE void vset ( float * const _a, float x ) { #if 1 __m128 &a = *( __m128 * )_a; a = _mm_set1_ps( x ); #else for( int i = 0 ; i < 4 ; ++i ) _a[ i ] = x; #endif } template < int N > FORCEINLINE void inlinetest ( float * const a, int i ) { return inlinetest< N - 1 >( a, i + 1 ); } template < > FORCEINLINE void inlinetest< 1 > ( float * const a, int i ) { vset( a, ( float )i ); } int main () { float a[ 4 ]; inlinetest< 100 >( a, 0 ); fprintf( stderr, "%f\n", a[ 0 ] ); getc( stdin ); return 0; } Tag: How to get code page from current language input method? Tag: 282544
  - 3
    - Writing to stdin inside an c commandline Application Hello, Does Anybody know (or has an idea) how to Write to stdin stream inside an c Commandline Application? I tried : fprintf( stdin, "STRING" ); which did not work (returned -1 ; error) -- regards, Gerd Keller Tag: How to get code page from current language input method? Tag: 282543
  - 4
    - typeid comparision does not work inside macro I have two functions return a type_info. I used them to see if a class is of a specifed type. const type_info& MyOtherClass::desc() {return typeid( MyOtherClass() );}; and /*static*/const type_info& MyOtherClass::isA() const {return typeid(*this);} If i put them in the code straight up it works. I find that a class is of the same knd as itself. But if i put them in a macro the two return different typeIds for the same class. it worked perfect in VS.net (2002). What im i missing?? I can supply a minimal project to show my problem. /Matt Tag: How to get code page from current language input method? Tag: 282541
  - 5
    - Loading mulitple versions of a DLL Hi all I have a dll, the source code of which is in C++. I want to be able to load two versions of the dll at the same time. The second version of the dll has some changes to the C++ code. I know that Windows does not allow loading mulitple versions of dlls with the same name, so is there a work around? I know that the 'hacky' way to get around this is to change the name of the dll. But I do not want to do this. I was thinking of using assemblies, but I am not sure how to create one. Does anyone know how to use assemblies or is there something better? Thanks in advance Tag: How to get code page from current language input method? Tag: 282506
  - 6
    - vs 8 bug ? Hi Forum, I have some disassembly to post which I think indicates a bug ... if not, then hopefully one of the gurus here can tell me what I'm doing wrong ... The scenario here is a .exe making a call to a __declspec( dllexport ) declared c function ... both projects are configured for _cdecl linkage ... What follows are two dissambly blocks, the first with the ** alleged ** bug, and the second with what seems to ** fix ** the alleged bug ... ------------------------ "bad" code block ------------------------------------------ pApuUpdateHWclock(fCurrentSimulationTime); 00401266 83 EC 08 sub esp,8 00401269 DD 45 A8 fld qword ptr [ebp-58h] 0040126C DD 1C 24 fstp qword ptr [esp] 0040126F FF 15 E8 D4 47 00 call dword ptr [_pApuUpdateHWclock (47D4E8h)] // __asm nop _pApuFubar(x); 00401275 DD 45 E0 fld qword ptr [ebp-20h] 00401278 DD 1C 24 fstp qword ptr [esp] . . . --------------------------------"good" code block -------------------- pApuUpdateHWclock(fCurrentSimulationTime); 00401266 83 EC 08 sub esp,8 00401269 DD 45 A8 fld qword ptr [ebp-58h] 0040126C DD 1C 24 fstp qword ptr [esp] 0040126F FF 15 E8 D4 47 00 call dword ptr [_pApuUpdateHWclock (47D4E8h)] 00401275 83 C4 08 add esp,8 __asm nop 00401278 90 nop _pApuFubar(x); 00401279 83 EC 08 sub esp,8 0040127C DD 45 E0 fld qword ptr [ebp-20h] . . . --------------------------------------------------------------------------------------- So, obviously, inserting a nop into the instruction stream has "corrected" the stack cleanup issue ... What gives , gurus ? Best Regards , gordon Tag: How to get code page from current language input method? Tag: 282488
  - 7
    - Determine windows Control types (win32) Hi, In a win32 project what is the best way to detect the control type just be using the handle (or using any other way.. Ex: I want to know if my object (hwnd) is one of the following windows control types : Animation Button ComboBox ComboBoxEx Date and Time Picker Drag List Box Edit Control Flat Scroll Bar Header Control Hot Key Image Lists IP Address Control List Box List View Month Calendar Pager Progress Bar Property Sheet Rebar Rich Edit Scroll Bar Static Control Status Bar SysLink Tab Task Dialog Toolbar ToolTip Trackbar Tree View Up-Down Control I try GetClassInfos, window style, extended style and other things...but it's always look "generic" and incomplete (no tab, treeview, status bar, etc..) Thanks!. Tag: How to get code page from current language input method? Tag: 282479
  - 8
    - Determine windows Control types (win32) Hi, In a win32 project what is the best way to detect the control type just be using the handle (or using any other way.. Ex: I want to know if my object (hwnd) is one of the following windows control types : Animation Button ComboBox ComboBoxEx Date and Time Picker Drag List Box Edit Control Flat Scroll Bar Header Control Hot Key Image Lists IP Address Control List Box List View Month Calendar Pager Progress Bar Property Sheet Rebar Rich Edit Scroll Bar Static Control Status Bar SysLink Tab Task Dialog Toolbar ToolTip Trackbar Tree View Up-Down Control I try GetClassInfos, window style, extended style and other things...but it's always look "generic" and incomplete (no tab, treeview, status bar, etc..) Thanks!. Tag: How to get code page from current language input method? Tag: 282478
  - 9
    - C2986 C2784 could not deduce template argument. So given this header. template < QSTYPE type, typename T, template <typename ELEM, typename = std::allocator<ELEM> > class CONT > CONT<T> quicksort(CONT<T>); // inside the main file. // I decided a function that takes vector of integer and returns a vector of integer. typedef boost::function<std::vector<int>(std::vector<int>)> sortfunc; // create a function list to hold the sorting function. // bunch of number include. #include <boost/assign/std/vector.hpp> std::vector<sortfunc> function_list; using boost::assign::operator+=; std::vector<sortfunc> function_list; // quicksort random function_list += (&algocpw::quicksort<algocpw::QSTYPE(algocpw::RANDOM), int, std::vector>), // quicksort median (&algocpw::quicksort<algocpw::QSTYPE(algocpw::MEDIAN), int, std::vector>), // quicksort mediantriple (&algocpw::quicksort<algocpw::QSTYPE(algocpw::MEDIANTRIPLE), int, std::vector>), // merge sort (&algocpw::mergesort<int, std::vector>), // heap sort (&algocpw::heapsort<int, std::vector>), // selection sort (&algocpw::selection_sort<int, std::vector>), // standard sort (&algocpw::standard_sort<int, std::vector>); I get the following errors. ./cs512/c++/sortingMain.cpp(63) : error C2896: 'boost::assign::list_inserter<boost::assign_detail::call_push_back<std::vector<_Ty,_Alloc>>,V> boost::assign::operator +=(std::vector<_Ty,_Alloc> &,V2)' : cannot use function template 'CONT<T> algocpw::mergesort(CONT<T>)' as a function argument c:\cpw\msvc\cs512\c++\def\../sortingAlgo.hpp(32) : see declaration of 'algocpw::mergesort' ./cs512/c++/sortingMain.cpp(63) : error C2784: 'boost::assign::list_inserter<boost::assign_detail::call_push_back<std::deque<T,Allocator>>,V> boost::assign::operator +=(std::deque<T,Allocator> &,V2)' : could not deduce template argument for 'std::deque<T,Allocator> &' from 'std::vector<_Ty>' with [ _Ty=sortfunc ] Where did "deque" come from.. i never included deque. Tag: How to get code page from current language input method? Tag: 282472
  - 10
    - Removing 1 character from the end of file using file streams Using std::ofstream (std::fstream, or std::filebuf), is there a way just to remove one character from the end of file (trailing '\n', for example) without copying it into a new file? Thank you. Tag: How to get code page from current language input method? Tag: 282470
  - 11
    - Its been a long time! Hello to all! I don't know if any of you guys remember me, I sure remember some of you. And you were great help on the questions that I posted on this newsgroup a year and a half ago. I was the fellow reading the petzold book and testing its programs in VC++! I got to the point where I was coding, classes, structures, objects and using API functions within VC++ (Fun stuff!). Bummer I had to put all that aside to carry on with electronics and processors which I programmed in C since this was a priority to my project. As you may guess, after a year and a half without touching VC++ I am quite rusty but would probably take me a a month or two of review and I would probably be up to par from where I left off. I have posted this question about two years ago, and since technology evolves every day, I figure I would ask it again in this post. At this point should I continue with VC++ (this would mean reviewing all that I had leanrt plus learning new stuff like STL and the rest of the 800 pages in Petzold's book) or jump straight into .NET? With regards Robert Tag: How to get code page from current language input method? Tag: 282464
  - 12
    - A more serious bug MSVC has some more problems with covariance. This one is much more of a showstopper than my previous bug. The following code compiles without warning on Comeau and g++. template<class T> class M; struct V { virtual V *vf(); }; struct A : virtual V { A *vf(); }; struct B : virtual V { B *vf(); }; struct D : A, B { D *vf() = 0; }; In Visual Studio 2005, it gives: error C2250: 'D' : ambiguous inheritance of 'A *V::vf(void)' Tag: How to get code page from current language input method? Tag: 282463
  - 13
    - Hidden overloaded operator in multiple inheritance All, I found in multiple inheritance only the first base class's overloaded operators are visible. My overloaded operators has different signatures in the different base classes. They are not ambiguous. 'using operator..' statements can bring them back. Please see my minimal example below. I'd like to know if it is a bug or a feature. Thanks for your help, Tamas #include <iostream> #include <string> template <class Parent> class basei { public: int bi; int operator + (int i) { bi += i; std::cout << "basei::operator+ : " << bi << std::endl; return bi; } Parent& operator << (int i) { bi += i; std::cout << "basei::operator<< : " << bi << std::endl; return (Parent&)*this; } }; template <class Parent> class bases { public: std::string bs; std::string operator + (std::string s) { bs += s; std::cout << "bases::operator+ : " << bs << std::endl; return bs; } Parent& operator << (std::string s) { bs += s; std::cout << "bases::operator<< : " << bs << std::endl; return (Parent&)*this; } }; class comp1 : public basei<comp1>, public bases<comp1> { }; class comp2 : public bases<comp1>, public basei<comp1> { }; class comp3 : public basei<comp1>, public bases<comp1> { public: using basei::operator+; using basei::operator<<; using bases::operator+; using bases::operator<<; }; int main(int argc, char* argv[]) { std::string s; int i = 0; comp1 c1; c1.bi = 0; c1 << 1; // c1 << std::string ("hello"); // C2679 i = c1 + 1; // s = c1 + std::string (" world!"); // C2679 comp2 c2; c2.bi = 0; // c2 << 1; // C2679 c2 << std::string ("hello"); // i = c2 + 1; // C2679 s = c2 + std::string (" world!"); comp3 c3; // all good c3.bi = 0; c3 << 1; c3 << std::string ("hello"); i = c3 + 1; s = c3 + std::string (" world!"); return 0; } Tag: How to get code page from current language input method? Tag: 282431
  - 14
    - IJolietDiscMaster->AddData returning STG_E_INVALIDFUNCTION Hi there, I am attempting to add a previously created IStorage container to an IJolietDiscMaster interface, although the file appears to have been created correctly and no errors were returned during it's creation, nor the streams that were added to it, unfortunately it returns STG_E_INVALIDFUNCTION. Could this be due to the way that I have created the streams? or not closed them correctly after adding data? Many thanks in advance as any help on this would be fantastic. Nick. BTW, this is being asked in this group as the device.drivers group isn't yielding any replies. Tag: How to get code page from current language input method? Tag: 282419
  - 15
    - Apparent Template Bug I've created the following minimal compilation failure from a much larger program. This compiles without warning in strict mode on both g+ + and Comeau. Any thoughts? template<class T> class D; class B { }; template<template <typename> class T, class U> class A : public T<U> { public: virtual U *f(); }; template<> class D<B> { public: virtual B *f(); }; class C : virtual public B { }; template<> class D<C> : virtual public D<B> { }; A<D, C> a; Tag: How to get code page from current language input method? Tag: 282412
  - 16
    - how to maximize reusability? Hello, I wonder what are the general methods to reuse a class component as much as possible? Like the case I showed you guys a few days ago class CPerson : public CPathFinder { }; class CSupervisor : public CPerson { }; I'd like to declare and define once for one single method... Some behaviours of classes are common, but don't know if I should put it in the base class or derived class.... For example: class CPathFinder { Render() }; Render() is used in CPerson and CSupervisor. But Render() in CPathFinder doesn't make sense cos it is not a tangiable object at all. How do I do classifications and encapsulations here? also if I put render in CPerson, Do all classes derived from CPerson needn't to declare and define the same method again? That should be what is meant by "reusable"? No??? Thanks Jack Tag: How to get code page from current language input method? Tag: 282401
  - 17
    - c2244 and namespace error. Recently i did some compilation test that resulted in C2244 unable to match function declaration and function definition. example.. inside the hpp file. namespace something { template <typename T, template <typename ELEM, typename = std::allocator<ELEM> > class CONT > extern void select_sort(CONT<T>&, typename CONT<T>::iterator, const typename CONT<T>::size_type&, const typename CONT<T>::size_type&); } inside the c file template <typename T, template <typename ELEM, typename = std::allocator<ELEM> > class CONT > void Something::select_sort(CONT<T>& array, typename CONT<T>::iterator Left, const typename CONT<T>::size_type& Size, const typename CONT<T>::size_type& Step) { typedef typename CONT<T>::iterator iter; iter IEnd(boost::next(Left, (Size-1)*Step)); iter JEnd(boost::next(Left, Size*Step)); iter min; iter Last(array.end()); BOOST_ASSERT(IEnd != Last); BOOST_ASSERT(JEnd != Last); for (iter i(Left); i < IEnd; std::advance(i, Step)) { min = i; for (iter j(boost::next(i, Step)); j < JEnd; std::advance(j, Step)) { if (*j < *min) min = j; } std::iter_swap(i, min); } } take it out of namespace and i don't get the error. Tag: How to get code page from current language input method? Tag: 282400
  - 18
    - VC++ Cursor mask problem on windows vista Hi Guys! I've built a test application in VC++ 6.0 which runs on windows XP. It is a just a simple mfc dialog app, which changes the cursor image using cur file. The code is: BOOL CProjectDlg::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) { // TODO: Add your message handler code here and/or call default m_hCurPenBlue = LoadCursor(AfxGetResourceHandle(), MAKEINTRESOURCE(IDC_CURSOR1)); ::SetCursor(m_hCurPenBlue); return TRUE; } The image is composed of a green mask, transparent on XP. While in XP the cursor has transparency over the dialog, running the same application in windows vista creates a black rectangle surrounding the cursor'ss image (It is not transparent any more). Do you know how to solve this (So the margin will be transparent on vista) Thanks, Ron Tag: How to get code page from current language input method? Tag: 282393
  - 19
    - Why memcpy on x64 is so slow ? Hello, Why memcpy on x64 (64-bit mode) is so slow ? Small sample: ----- char * src = new char[5*1024*1024]; char * dst = new char[5*1024*1024]; double before = secnds(); for(int i = 0; i < 10000; ++i) { memcpy(dst, src, 512*1024); } double after = secnds(); printf("delta %9.5f\n", after - before); before = secnds(); for(int i = 0; i < 10000; ++i) { long long * wdst = (long long *) dst; long long * wsrc = (long long *) src; for(int j = 0; j < 512*1024/8; ++j) { *wdst++ = *wsrc++; } } after = secnds(); printf("wdelta %9.5f\n", after - before); ---- Compiled with all possible optimization... on the same AMD Athlon 4800: X64: delta 2.98400 wdelta 1.45300 Win32: delta 1.25000 wdelta 2.14000 Regards, Sergey Tag: How to get code page from current language input method? Tag: 282373
  - 20
    - accessing a vector struct _myStruct { long idx; ... }; typedef vector<_myStruct> aStruct aStruct abc; if the vector, abc, shows [0](), how do I create an instance of "abc"? because it throws access violation at me when doing this abc[0].idx = count; where count is 0 Thanks a lot Tag: How to get code page from current language input method? Tag: 282360
  - 21
    - Convert C++ into VC 2005 I'm new to C++ but trying to compile some code into a Dll but i get the following errors when compiling the code Error 1 error C2440: 'default argument' : cannot convert from 'const char [1]' to 'CString' k:\c++ kode\sb5dll-1\sb5dll-1\station_source\queues.h 20 Error 2 fatal error C1903: unable to recover from previous error(s); stopping compilation k:\c++ kode\sb5dll-1\sb5dll-1\station_source\queues.h 27 here is a part of the code where the error appears #if !defined(AFX_QUEUES_H__B593B58B_7E9A_4FAA_8D9C_D5A1F251E8E0__INCLUDED_) #define AFX_QUEUES_H__B593B58B_7E9A_4FAA_8D9C_D5A1F251E8E0__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 #include "TcpClient.h" //#include "Constants.h" /****************/ class CQueAlert : public CObject { public: CQueAlert(int AlertID, int LockID, CString AlertDesc = ""); here it points to virtual ~CQueAlert() {}; void CreateMsg(CTcpClient *pTcpClient); int m_AlertID; int m_LockID; CString m_AlertDesc; }; If I make the empty "" to " " then it moves in to the next char in Cstring and pop up with the same errors. PetterL Tag: How to get code page from current language input method? Tag: 282346
  - 22
    - VC++ 2005 /Tp /Tc difference. I came across this problem while migrating my project from VC++ 6.0 to 2005. The following test code behaves differently when compiled, as C++ (/Tp), with Visual C++ 2005 compiler in comparison with Visual C++ 6.0. However, when I compile code as "C" file (/Tc) instead of C++ on VS 2005, it behaves same as VC++ 6.0 /Tp option. I've shown the output from build made using release mode in both the env. I'm wondering if any one has any idea what is going on here. <Code> #include <stdlib.h> #include <stdio.h> int main(void) { char* p = "??"; // char p[3] = "??"; fixes the problem printf("P:%s;%c\n", p, *p); *p = 'A'; printf("P:%s;%c\n", p, *p); printf("P:%s;%c\n", p, *p); (*p)++; printf("P:%s;%c\n", p, *p); printf("P:%s;%c\n", p, *p); return 0; } </Code> Output with Visual Studio 2005 Prof. Ed. - Compiled as C++ (/Tp) ---------- P:??;? P:??;A P:??;? P:??;@ P:??;? Output with Visual C++ 6.0 - Compiled as C++ (/Tp) Output with Visual Studio 2005 Prof. Ed. - Compiled as C (/Tc) -------- P:??;? P:A?;A P:A?;A P:B?;B P:B?;B Tag: How to get code page from current language input method? Tag: 282341
  - 23
    - ambiguous call to overloaded function Heres the error message. c:\cpw\msvc\cs512\c++\cppdef/median.cpp(199) : error C2668: 'select_sort' : ambiguous call to overloaded function c:\cpw\msvc\cs512\c++\cppdef/median.cpp(118): could be 'void select_sort<std::string,std::vector>(std::vector<_Ty,_Ax> &,std::_Vector_iterator<_Ty,_Alloc>,const int &,const int &)' with [ _Ty=std::string, _Ax=std::allocator<std::string>, _Alloc=std::allocator<std::string> ] c:\cpw\msvc\cs512\c++\cppdef\../median.hpp(49): or 'void select_sort<std::string,std::vector>(std::vector<_Ty,_Ax> &,std::_Vector_iterator<_Ty,_Alloc>,const int &,const int &)' with [ _Ty=std::string, _Ax=std::allocator<std::string>, _Alloc=std::allocator<std::string> ] while trying to match the argument list '(std::vector<_Ty,_Ax>, iter, const int, int)' with [ _Ty=std::string, _Ax=std::allocator<std::string> ] Heres line 114-119 of median.cpp template <typename T, template <typename ELEM, typename = std::allocator<ELEM> > class CONT > void select_sort(CONT<T>& array, typename CONT<T>::iterator Left, const int& Size, const int& Step) Heres line 45-49 of median.hpp template <typename T, template <typename ELEM, typename = std::allocator<ELEM> > class CONT > extern void select_sort(CONT<T>&, typename CONT<T>::iterator, const int&, const int&); What is wrong? Tag: How to get code page from current language input method? Tag: 282340
  - 24
    - linker can't find my class methods I have an abstract class defined in a header file, and have derived my own class from it overriding the pure virtual methods. The .cpp's compile OK but the linker gives unresolved external symbol errors when trying to link my methods. // the abstract class, in abstract.h class CExchange { public: virtual short Exchange(BYTE *pabExchangeBuffer, DWORD eBufferSize, DWORD eNumberOfBytesToSend, DWORD &reNumberOfBytesReceived) = 0; virtual ~CExchange(void) { } }; ///////////////// // My derived class definition in Exchange.h #include "abstract.h" class C_Exchange : virtual public CExchange { public: virtual short Exchange(BYTE *pabExchangeBuffer, DWORD eBufferSize, DWORD eNumberOfBytesToSend, DWORD &reNumberOfBytesReceived); }; //////////////////// // The derived class implimentation in Exchange.cpp #include "abstract.h" class C_Exchange : virtual public CExchange { public: virtual short Exchange(BYTE *pabExchangeBuffer, DWORD eBufferSize, DWORD eNumberOfBytesToSend, DWORD &reNumberOfBytesReceived) { short ret = 0; return ret; } }; /////////////// // And the final use in main() #include "exchange.h" int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { C_Exchange* ex = new C_Exchange(); return 0; } It all works until I try to instantiate an object of C_Exchange, at which the linker says: error LNK2001: unresolved external symbol "public: virtual short __thiscall C_Exchange::Exchange(unsigned char *,unsigned long,unsigned long,unsigned long &)" (?Exchange@C_Exchange@@UAEFPAEKKAAK@Z) Also, if I change the include from abstract.h to exchange.h in the cpp the compiler says I have duplicate class definition. I always define a class in a header and implement it in a cpp without problems, why would this one be any different? Thanks Tag: How to get code page from current language input method? Tag: 282339
  - 25
    - Calling convention ( __stdcall, __cdecl ) and DLLs I declared and defined two functions in a simple DLL, (with no DllEntry) as follows: EXPORT void __stdcall Func1(void); EXPORT void __cdecl Func2(void); Then, from another program I loaded this DLL using LoadLibrary, which succeded. Then, I used GetProcAddress twice to get pointers to these two funcs in the DLL. The GetProcAddress failed on the __stdcall type, while the other func I was able to invoke. Why is this so? Tag: How to get code page from current language input method? Tag: 282333
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    - IMAPI Recording I'm just going through some code I found on MSDN regarding using the IMAPI interface. Unfortunately all it seems to do is enumerate the drives and then display their information, one comment made me laugh // This requires dealing with IEnumSTATPROPSTG--Ugh! That's really encouraging isn't it? Ideally I wanted to do this through VB.NET but examples seem to be a little lacklustre and unfortunately I cannot resort to the VB Accellerator binary that is available. Any pointers in the direction toward something that's a little more intuitive than "Ugh!" I would be most appreciative. Nick. Tag: How to get code page from current language input method? Tag: 282321
  - 2
    - http://Google.COM/groups?selm=Jeff_Relf_2007_Oct_4__1_49_A3@Cotse.NET If you know the Message-ID of a post, e.g. â?? news:Jeff_Relf_2007_Oct_4__1_49_A3@Cotse.NET â??, you can link to it like this: http://Google.COM/groups?selm=Jeff_Relf_2007_Oct_4__1_49_A3@Cotse.NET However, Google sometimes won't recognize a Message-ID younger than 3 days old. If you use â?? Search Engine Plugins â??, you can add a â?? Message-ID lookup â?? by typing this into the URL bar ( it must be a single line, hit â?? Go â?? twice ): â?? javascript: ( function() { window.external.AddSearchProvider( "http://www.cotse.net/users/jeffrelf/MessID.XML"); } )(); â??. FireFox 2.0 won't install a .XML file if it's not UTF-8 encoded, I discovered, nor can it be loaded from a hard-disk. Also, it won't load if the â?? image height â?? isn't 16. MessID.XML is just: â?? <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/"> <ShortName>Message ID Lookup</ShortName> <Image height="16" width="16" type="image/png"> http://www.cotse.net/users/jeffrelf/X.PNG</Image> <Url type="text/html" method="get" template="http://Google.COM/groups?selm={searchTerms}"/> </OpenSearchDescription> â??. .+.+.+ Tag: How to get code page from current language input method? Tag: 282299
  - 3
    - Capturing stdout from a started process... Hello, My setup is as follows: WinXP Pro, VS2005 Pro. I would like to start a process from within my C/C++ application, then capture that process's stdout into a file. I've been able to do it completely successfully using the library system function, that is: system("MyProcess.exe > someFile") However, my process opens up a command window when it runs, which is really distracting if I'm doing something else at the time. Instead, I simply want the process to run "unnoticed" but still be able to capture its output. I originally tried this in C#, which does provide facilities for doing exactly what I want along with MSDN example code to do it. The only problem is that either .NET is buggy in this regard, the sample code is flakey, or I am simply too dumb to use it. In any case, while it does work most of the time, it often misses the last line output by the process, even though I do wait for the process to end. So, I decided to go back to the old reliable of C/C++ to see if I could do it. Any ideas? Thanks, Ray Mitchell Tag: How to get code page from current language input method? Tag: 282296
  - 4
    - C2614: Inheritance question c:\Documents and Settings\luckie\myApp\cObject.cpp(13): error C2614: 'CSupervisor' : illegal member initialization: 'm_vRotCenter' is not a base or member c:\Documents and Settings\luckie\myApp\cObject.cpp(13): error C2614: 'CSupervisor' : illegal member initialization: 'm_vPos' is not a base or member c:\Documents and Settings\luckie\myApp\cObject.cpp(13): error C2614: 'CSupervisor' : illegal member initialization: 'm_vRot' is not a base or member c:\Documents and Settings\luckie\myApp\cObject.cpp(13): error C2614: 'CSupervisor' : illegal member initialization: 'm_vScale' is not a base or member c:\Documents and Settings\luckie\myApp\cObject.cpp(13): error C2614: 'CSupervisor' : illegal member initialization: 'm_vScaleCenter' is not a base or member class CPerson : public CPathfinder private: ... D3DXQUATERNION m_quatRot; D3DXVECTOR3 m_vPos; D3DXVECTOR3 m_vScale; D3DXVECTOR3 m_vScaleCenter; D3DXVECTOR3 m_vRot; D3DXVECTOR3 m_vRotCenter; }; CObject.h ========================= class CSupervisor : public CPerson { public: CSupervisor(); ~CSupervisor(); }; CObject.cpp =========================== CSupervisor::CSupervisor(void) : m_vPos (0.0f, 0.0f, 0.0f), m_vScale (1.0f, 1.0f, 1.0f), m_vRot (0.0f, 0.0f, 0.0f), m_vRotCenter (0.0f, 0.0f, 0.0f), m_vScaleCenter (0.0f, 0.0f, 0.0f) { } Any thoughts? maybe some obvious reasons and silly causes I am not aware of... Thanks Jack Tag: How to get code page from current language input method? Tag: 282295
  - 5
    - deriving from abstract class I have a class module (class A) where the constructor requires a pointer to an object of an abstract class (class B). I understand that I have to derive another class (class C) from the abstract one and override all the virtual methods in order to instantiate an object. But when I use the derived class C object as the argument for the constructor of class A, the compiler says it can't convert form class C to class B. What to do? Thanks. Tag: How to get code page from current language input method? Tag: 282278
  - 6
    - recompile a DLL with _stdcall for VB hello sorry for the silly question, i am not familiar with VC (neither other C IDE ok..) but I need a dll to be compiled as stdcall instead of cdecl to use inside the VB IDE. The problem is that I have no sources but header file .h and a library file .lib. With this three (dll, h, lib) is possible to have a "fixed" .dll for my purposes? thanks Tag: How to get code page from current language input method? Tag: 282259
  - 7
    - Basic Socket im following this article here not quite getting it to work :( http://www.codeproject.com/internet/beginningtcp_cpp.asp the problem is i dont' seem to be getting any of these events FD_ACCEPT | FD_CONNECT |FD_READ | FD_CLOSE which are suppose to be triggered by this line: WSAAsyncSelect (s, hwnd, MY_MESSAGE_NOTIFICATION, (FD_ACCEPT | FD_CONNECT |FD_READ | FD_CLOSE)); in ListenOnPort(int portno, HWND hwnd) i've set it up so that every time a key is pressed the ListenOnPort() is called. Listening for connection code: int ListenOnPort(int portno, HWND hwnd) { SOCKET s; WSADATA w; int error = WSAStartup (0x0202, &w); // Fill in WSA info if (error) { return false; //For some reason we couldn't start Winsock } if (w.wVersion != 0x0202) //Wrong Winsock version? { WSACleanup (); return false; } SOCKADDR_IN addr; // The address structure for a TCP socket addr.sin_family = AF_INET; // Address family addr.sin_port = htons (portno); // Assign port to this socket //Accept a connection from any IP using INADDR_ANY //You could pass inet_addr("0.0.0.0") instead to accomplish the //same thing. If you want only to watch for a connection from a //specific IP, specify that //instead. addr.sin_addr.s_addr = htonl (INADDR_ANY); s = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP); // Create socket if (s == INVALID_SOCKET) { return false; //Don't continue if we couldn't create a // socket!! } if (bind(s, (LPSOCKADDR)&addr, sizeof(addr)) == SOCKET_ERROR) { //We couldn't bind (this will happen if you try to bind to the same //socket more than once) return false; } //Now we can start listening (allowing as many connections as possible to //be made at the same time using SOMAXCONN). You could specify any //integer value equal to or lesser than SOMAXCONN instead for custom //purposes). The function will not //return until a connection request is //made int tempi = listen(s, SOMAXCONN); WSAAsyncSelect (s, hwnd, MY_MESSAGE_NOTIFICATION, (FD_ACCEPT | FD_CONNECT |FD_READ | FD_CLOSE)); //Don't forget to clean up with CloseConnection()! closesocket(s); ::MessageBox(NULL,"Done Listening ", "Got Request..", MB_OK); } //-------------- Look out for the events code: switch (message) { case MY_MESSAGE_NOTIFICATION: //Is a message being sent? { switch (lParam) //If so, which one is it? { case FD_ACCEPT: ::MessageBox(NULL,"Done Listening Event", "Got Request..", MB_OK); //Connection request was made break; case FD_CONNECT: ::MessageBox(NULL,"Done Listening Event", "Got Request..", MB_OK); //Connection was made successfully break; case FD_READ: //Incoming data; get ready to receive break; case FD_CLOSE: //Lost the connection ::MessageBox(NULL,"Done Listening Event", "Got Request..", MB_OK); break; } } break; case WM_KEYDOWN: ListenOnPort(888, hWnd); break; .. Tag: How to get code page from current language input method? Tag: 282242
  - 8
    - How to check class without creating instance? How to check is class available without creating class instance? I.e. to check is iTunes installed using iTunes-SDK I can check result of CoCreateInstance( CLSID_iTunesApp, NULL, CLSCTX_LOCAL_SERVER, IID_IiTunes, (PVOID *) &iITunes); but it starts whole iTunes and take a long time. Is there way to check is CLSID_iTunesApp available without creaing instance? I tried to use CoGetClassObject, but it also loading iTunes and it took long time. Any fast and simple idea? Tag: How to get code page from current language input method? Tag: 282241
  - 9
    - Recieveing Bulk of Messages of small size using Sockets Hi, I have a client server MFC Socket based application. I am hooking the mouse and sending the event messages to the client. On client im simply displaying the events (real intension is to inject the events using sendInput()). The problem is that on client if i write the messages on file I can see all the messages in order there. but if I try to print (or inject using sendInput()) them I dont get all the messages. also if I write them in file and print them, then again I dont get all the messages in file. One more intrusting thing is that when I use telnet instead it displays all the messages. I have tried using win32 APIs using SOCKET as well instead of using CSocket. but the result is the same. I need to recieve messages without missing any of them. Kindly suggest me what to do. Thanks in anticipation Regards, Ahmad Jalil Qarshi Tag: How to get code page from current language input method? Tag: 282240
  - 10
    - Getting rid of early access violations First-chance exception at 0x77d2f450 in myApp.exe: 0xC0000005: Access violation reading location 0x25e77944. First-chance exception at 0x77d2f450 in myApp.exe: 0xC0000005: Access violation reading location 0x25e77944. First-chance exception at 0x77d2f450 in myApp.exe: 0xC0000005: Access violation reading location 0x25e77944. First-chance exception at 0x77d2f450 in myApp.exe: 0xC0000005: Access violation reading location 0x25e77944. There are no compilation and linkage errors. The application runs fine (MFC), but after I return to the output pane, these messages appear [ I just added D3DX (Direct3D) files into this project] Anyone knows how to get rid of these? Thanks Jack Tag: How to get code page from current language input method? Tag: 282238
  - 11
    - When we need to use stack vs list or vetor Hi All, Stack, list and vector are STL. I was wondering when we need to use the stack vs list and vector. Thanks in advance for your respond. JL Tag: How to get code page from current language input method? Tag: 282224
  - 12
    - TreeView in a Win32 application project Hi, When I add a "Tree-View" control in my dialog the application didnt start in VS2005. Is there any reasons? No error in the build log...everything looks fine after compiling except that the application is not displayed at all. The following example is working : http://www.codeproject.com/treectrl/treeview.asp but when i just want to simply add a tree-view control in another project from scratch it never works...the application never start after compiling...any help??? Thanks! Tag: How to get code page from current language input method? Tag: 282221
  - 13
    - WaitForMultipleObjects returning ERROR_INVALID_HANDLE I have a problem with WaitForMultipleObjects sometimes (not allways) returning ERROR_INVALID_HANDLE. Printing the array of handles in question did not show any unusual thing, i.e. all handles retain their values, no matter if the error occures or not. Is there any funktion I can call (like IsHandleValid) that would tell me if a handle is valid or invalid? Or is there any value I can compare my handles to, that would tell me if the handle is valid or not? many thanks, Felix Tag: How to get code page from current language input method? Tag: 282211
  - 14
    - onlbuttonclk Hi all, i'm working on an application whose hierarchy is one CMDIFrameWnd and multiple CMDIChildWnd objects for different functionalities. i wanted to create a functionality for left mouse double click event, i added the message ON_WM_LBUTTONDBLCLK and created the corresponding function definition OnLButtonDblClk i ran the application with spy+ but i never saw the double click message all i saw was left button down and left button up messages. for example i opened visual studio and tracked the messages with the spy+ and still got the two messages for button down and button up, never saw the message double click how does this double click works. how the other applications implemented the double click functionality thanks jc Tag: How to get code page from current language input method? Tag: 282171
  - 15
    - Threads hi, case WM_CREATE: //CREATE WINDOW EVENT SetTimer(hwnd, TimerID, 300, NULL); Thread1 = CreateThread(NULL,0,Thread1EventProc,NULL, 0,&mThreadId); // mThreadId set to 1212 break; ---------------------- //thread callback function unsigned long __stdcall Thread1EventProc(LPVOID param) { Sleep(100); //int i; i++; // global variable return 0; } //------------------- case WM_TIMER: switch (wParam) { case TimerID: { OpenThread(THREAD_ALL_ACCESS,false,mThreadId); return 0; } here is my attempt to rerun the thread, but is not working mThreadId has the value 3492 here for some reason, the program just keeps getting the timer message and Thread1EventProc is not called. Tag: How to get code page from current language input method? Tag: 282166
  - 16
    - using printf for uchar* datatype Hi all, How to use printf for uchar* datatype. For e.g., If I have a structure called A with one of its member as uchar* data then how do i print the value of data using printf?? Thanks, Kunal Tag: How to get code page from current language input method? Tag: 282163
  - 17
    - c2143 syntax errors. template <class T, class U> char (& is_op_test(boost::operators<T,U> const&) )[2] c:\cpw\msvc\cs512\c++\cppdef\../MyOperators.hpp(25) : error C2143: syntax error : missing ';' before ''template<'' Tag: How to get code page from current language input method? Tag: 282151
  - 18
    - SetWindowTheme() / win2000 The apps calls the SetWindowTheme() function. To let the app work on Win2000, I use /DELAYLOAD:Uxtheme.dll and the following code: #define SkipOnError(x) __try { x; } __except(EXCEPTION_CONTINUE_EXECUTION) { ; }; SkipOnError(SetWindowTheme(...)); I wonder if it is correct. I cannot test on Win2000. thanks Tag: How to get code page from current language input method? Tag: 282148
  - 19
    - sending UDP frames at a fixed rate I have an application where I would like to send UDP frames at a fixed rate. (for example, 200 byte frames at 50 frames per second.) But, using the example above, I may only get 320 frames sent in 10 seconds instead of the 500 I would expect. I've put GetTickCount()s around the sendto() function to see if that was taking longer than I would expect, but it always says 0 ms. The code I'm using to transmit the frames is below. I'd love to hear any suggestions. Thanks, PaulH // // create an empty buffer to pad the frames to the appropriate size // std::vector< char > buffer( 200 ); // // Throw unicast frames at the given rate & size to the DUT // int totalFrames = static_cast< int >( frames_per_second * runtime / 1000.0f ); DWORD dwStartTick = GetTickCount(); int err = 0; const char *pBuf = &buffer.front(); const int bufSize = static_cast< int >( buffer.size() ); // // Create a timer to send frames at a given rate // HANDLE hTimer = ::CreateWaitableTimer( NULL, FALSE, NULL ); LARGE_INTEGER transmitTime = { 0 }; transmitTime.QuadPart = static_cast< LONGLONG >( -( 10000000.0f / static_cast< float >( frames_per_second ) ) ); const int period = 1000 / frames_per_second; ::SetWaitableTimer( hTimer, &transmitTime, period, NULL, NULL, 0 ); // // transmit the test frames // while( ( err = sendto( dutSocket, pBuf, bufSize, 0, reinterpret_cast< SOCKADDR* >( DUTAddr- >ai_addr ), DUTAddr->ai_addrlen ) ) != SOCKET_ERROR && ( GetTickCount() - dwStartTick ) < static_cast< UINT >( runtime ) ) { sentFrames++; ::WaitForSingleObject( hTimer, period ); } Tag: How to get code page from current language input method? Tag: 282130
  - 20
    - File + Folder Links Hi there, If you save an HTML page with accompanying files from Internet Explorer, an HTML file gets created with a folder that is linked to the folder, if you delete one, the other gets deleted automatically etc. How can this be achieved via code? Thanks a million in advance. Nick. Tag: How to get code page from current language input method? Tag: 282119
  - 21
    - NO INVESTMENT ONLINE WORK AT YOUR SPARE TIME NO INVESTMENT ONLINE WORK AT YOUR SPARE TIME EASY 2 STEPS TO SET UP YOUR FUTURE 1.Just log on to http://www.moreinfo247.com/9785544/cb Fill the particulars and click signup. You will become affiliate. 2.You will get confirmation link on your email id. Click the confirmation link. Now you will become full access affiliate. After you confirm your registration only you will be eligible for all offers and Commissions. After confirmation if you do not work also you will be paid commission from the general pool. Hence it is necessary and compulsory to complete the two steps. You should become a full access affiliate, then only you can earn. At your spare time you can join members by the above link and they also should become a full access affiliate. You will paid in US dollars for each member joining under you. For this you can use yahoo groups or Google groups to reach members as I reached you. You cannot go wrong with this program. So think twice before close this mail. While you may not become rich overnight, you will become independent. NOTE: THIS MESSAGE IS SENT TO INTERESTED MEMBERS OF THE GROUP OTHERS PLEASE IGNORE. Tag: How to get code page from current language input method? Tag: 282115
  - 22
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  - 23
    - Nested exception handling I am getting an internal compiler error C1001 when I use nested try blocks in MS C++ 6.0. An example follows. The implementation of the method Change causes the problem. Is this a compiler bug ? I can't find any syntax error. #include <stdlib.h> class ListInteger { public: ListInteger(); // simple constructor ListInteger(int length); // constructor ListInteger(const ListInteger & rhs); // copy constructor (deep) ListInteger operator=(const ListInteger & rhs); // assignment (deep copy) ~ListInteger(); // destructor int GetLength() const; int GetInteger(int k) const; void SetInteger(int k,int entry); static void Change(ListInteger & X); static int * intvec(int length); static void del_intvec(int * q,int length); private: int * itsInteger; // array of integers indexed from zero int itsLength; // length of list }; // produces fatal error C1001: INTERNAL COMPILER ERROR void ListInteger::Change(ListInteger & L) { try { ListInteger save = L; try { //... } catch (...) { try { L = save; //... } catch (...) { try { L = save; //... } catch (...) { //... throw; } } } save = L; try { //... } catch (...) { try { L = save; //... } catch (...) { try { //... } catch (...) { //... throw; } } } } catch (...) { //... throw; } } ListInteger::ListInteger() : itsInteger(0), itsLength(0) { } ListInteger::ListInteger(int length) : itsInteger(0), itsLength(length) { // entries uninitialised itsInteger = (itsLength > 0) ? intvec(itsLength) : 0; } ListInteger::ListInteger(const ListInteger & rhs) : itsLength(rhs.GetLength()) { // copy constructor itsInteger = (itsLength > 0) ? intvec(itsLength) : 0; for (int j = 0; j < itsLength; j++) itsInteger[j] = rhs.GetInteger(j); } ListInteger ListInteger::operator=(const ListInteger & rhs) { // assignment (deep copy) if (this == &rhs) return *this; if (itsInteger != 0) { del_intvec(itsInteger,itsLength); itsInteger = 0; } itsLength = rhs.GetLength(); itsInteger = (itsLength > 0) ? intvec(itsLength) : 0; for (int j = 0; j < itsLength; j++) itsInteger[j] = rhs.GetInteger(j); return *this; } ListInteger::~ListInteger() { if (itsInteger != 0) del_intvec(itsInteger,itsLength); } int ListInteger::GetLength() const { return itsLength; } int ListInteger::GetInteger(int j) const { if (j < 0 || j >= itsLength) { printf(" Index out of range : ListInteger::GetInteger.\n"); exit(1); } return itsInteger[j]; } void ListInteger::SetInteger(int j,int entry) { if (j < 0 || j >= itsLength) { printf(" Index out of range : ListInteger::SetInteger.\n"); exit(1); } itsInteger[j] = entry; } void ListInteger::del_intvec(int * q,int length) { delete [] q; // delete array of integers } int main() { return 0; } Tag: How to get code page from current language input method? Tag: 282103
  - 24
    - Setting\Getting printer\plotter options I am trying to customize the Print GUI by adding a print previewer. I want to be able to accurately show how the image will come out on the paper, but I am unable to always get the correct information. I can query the devmode and get the Orientation, but that is not always accurate. I have found some printers/plotters do not rotate with Landscape, but require a third choice, "Rotated Landscape". I can set this via their driver GUI but it doesn't seem to change the Devmode in anyway. I am also having the same problem with "Autorotate". Even on machines where Landscape works as expected, if they have Autorotate turned on my previewer may be completely wrong. I need to be able to figure out to not only read these settings but would like to be able to set them. I suspect that these settings are set in the private portion of the Devmode. Is there anyway to get a definition of the structure that makes up the Devmode? Tag: How to get code page from current language input method? Tag: 282102
  - 25
    - Updating new e-books!! Hello!! once again i'm updating my e-books!! Check this out!! http://freebooks2007.blogspot.com thank youu!! have a nice day! ^^ Tag: How to get code page from current language input method? Tag: 282096

Hi there,

In my application, I need to get the code page for current IME device. For
example, if user selected Chinese in language bar, and keyed in Chinese
characters, I need to get code page 936 so I could translate the got key
code, which is in unicode. into double byte character set. And if user uses
Polish input method, my application should get 1250 as the code page.

I am using _getmbcp() to get code page for current locale, but not accurate
if the locale is English, but user is inputting other languages.

Any idea how to get the code page?

Thanks lot,

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Re: How to get code page from current language input method? by Igor

Igor
Tue Oct 16 20:03:08 PDT 2007

"Gary" <Gary@discussions.microsoft.com> wrote in message
news:D49FAA80-924A-4320-B6B7-880AD43A9854@microsoft.com
> In my application, I need to get the code page for current IME
> device. For example, if user selected Chinese in language bar, and
> keyed in Chinese characters, I need to get code page 936 so I could
> translate the got key code, which is in unicode. into double byte
> character set. And if user uses Polish input method, my application
> should get 1250 as the code page.

TranslateCharsetInfo

http://blogs.msdn.com/michkap/archive/2006/08/28/728336.aspx

--
With best wishes,
Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

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