Exporting DLLs to Visual Basic

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- Previous
  - 1
    - Workaround for an INTERNAL COMPILER ERROR wanted... Does anybody know a workaround so that the following code compiles with VC++ 2003? template< typename t, t v, template< t > class c > struct s { static t r( ) { return c< v >::r; } }; template< typename t > struct c { template< t v > struct s2 { static t const r = v; }; }; int main ( ) { s< int, 1, c< int >::s2 >::r( ); } Btw, a standard-compliant compiler shoud compile this code, shoudn't it? Tag: Exporting DLLs to Visual Basic Tag: 250479
  - 2
    - cast array to structure template<typename type> class CData { public: DWORD a; DWORD b; DWORD c; type* m_Data() { return (type*)(this + 1); } }; Note: Used old school cast to make my code more readable. DWORD Data[] = { 0, 0, 0, 0 }; CData<type>* nulldata = (CData<type>*)&data; type *wti = (type*)(((BYTE*)&data) + sizeof(CData<type>)); Are these cast safe? class CData { public: DWORD a; DWORD b; BYTE* m_Data() { return (BYTE*)(this + 1); } } DWORD Data[] = { 0, 0, 0 }; CData* nulldata = (CData*)&data; Do I avoid structure padding if I do this? Is structure padding even a issue? Tag: Exporting DLLs to Visual Basic Tag: 250454
  - 3
    - Class templates and friend function templates I have a class template like this: template< typename t > class c; I'd also like to have an operator == for objects of types, which are different specializations of c: template< typename t1, typename t2 > bool operator == ( s< t1 > const& , s< t2 > const& ); In order to implement this operator, I need it to be a friend of both s< t1 > and s< t2 >. For the sake of safety, I'd like no other specialization of c to have this operator as its friend. Is this possible and, if so, how? Tag: Exporting DLLs to Visual Basic Tag: 250428
  - 4
    - how can i modify the ip address ,mask,default gateway in VC? is there any function? Tag: Exporting DLLs to Visual Basic Tag: 250404
  - 5
    - How to set a backgroundcolor for a windows control (Trackbar) ? Hello, i know this is a noob question, but i haven't any idea how to change the backgroundcolor for a trackbar, so i try a question here. I have the following code snippets inside a DLL, the problem is this XXXX in the subclass, it do nothing, i have try FillRect with a solidbrush or other things, no luck :( any ideas? whats wrong? =========================================== WNDPROC oldSliderWindowProc; LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { case WM_CREATE: { ... hwndSlider = CreateWindow(TRACKBAR_CLASS,"",WS_CHILD | WS_VISIBLE | TBS_NOTICKS,1,1,120,20,hwnd,(HMENU)0, (HINSTANCE) GetWindowLong(hwnd, GWL_HINSTANCE), NULL); SendMessage(hwndSlider, TBM_SETRANGE, FALSE, MAKELONG(SLIDER_MIN, SLIDER_MAX/SLIDER_DIV)); SendMessage(hwndSlider, TBM_SETPOS, TRUE, DBGetContactSettingDword(NULL,SERVICENAME,"Volume",1000)/SLIDER_DIV); oldSliderWindowProc = (WNDPROC)SetWindowLong(hwndSlider, GWL_WNDPROC, (LONG)SubclassedSliderWindowProc); ... } } LRESULT CALLBACK SubclassedSliderWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_ERASEBKGND: XXX return TRUE; } return CallWindowProc(oldSliderWindowProc, hwnd, msg, wParam, lParam); } -- Newsreader: http://mesnews.net/index-gb.php Deutsche Hilfedatei: http://www.lastwebpage.de/download/mesnews-de.zip Tag: Exporting DLLs to Visual Basic Tag: 250403
  - 6
    - load a PNG image Hi, how could i load a PNG image file in VC++ ? is it possible using only Win32 functions or should i use MFC ? thanks a lot, Maileen Tag: Exporting DLLs to Visual Basic Tag: 250370
  - 7
    - skinnable application Hi, I would like to know what is the best technique for creating skinnable application ? everything should be imagess if i understood well, and 1 file should contain all information about these images like names, status (pressed, hover, standard, up, and so on...). But should i write in this file, the dimensions of each image ? does anyone have some samples please ? thanks a lot, Maileen Tag: Exporting DLLs to Visual Basic Tag: 250369
  - 8
    - how to Call VB dlll in VC Could anybody point me to some resource about how to call a VB.net DLL in VC.net? Thanks in advance. Al Tag: Exporting DLLs to Visual Basic Tag: 250368
  - 9
    - Theme issue in VC++. Hi All, I have created the application like TurboNote+. The application should run on both Win2K and WinXP. While running the application in XP, i got some border issues. It will be fixed, if we choose the default theme in WinXP. But my application should run on all themes of WinXP. How can i handle themes issues in VC++. Please help me to solve this problem. Regards, Prakash. Tag: Exporting DLLs to Visual Basic Tag: 250365
  - 10
    - =?Utf-8?Q?Funny_linker_error=E2=80=A6!?= I have a class that I'm using in my solution. This is an Internet solution, and this class is something I share with couple of projects. Now, to avoid redefining the class, I included the header in both projects. In order to relieve my self from recompiling, I let the server (project 1) compile this file, and I added the client (project 2) the object file. Now here is the funny thingâ?¦ I have a clean constructor to this class (no parameters) which is called without a problem from the object file. Any method declared works very well, BUT the ones that has wchar_t * as parameters. Any function that have any parameter like this will result in a linker error " chat client error LNK2019: unresolved external symbol "public: int __thiscall CUserLoginInfo::SetLoginData(wchar_t *)" (?SetLoginData@CUserLoginInfo@@QAEHPA_W@Z) referenced in function "public: void __thiscall CchatclientDlg::OnBnClickedOk(void)" (?OnBnClickedOk@CchatclientDlg@@QAEXXZ) " no matter what the function is, as long it contains this parameter, I will get this error. If I won't call this function the project will obviously runâ?¦ needles to say that this can be resolved very quickly by copying the values by hand, but this is a flowed programming style, not to mention extremely annoying!... wchar_t is, of course, defined in both projects (/Zc:wchar_t). I had tried to fiddle with some functions parameters, all passed but thisâ?¦ What do you think? Tag: Exporting DLLs to Visual Basic Tag: 250364
  - 11
    - image JPEG and BMP Hi, i've created a JPEG image which is 300 x 50. this image contains 6 images of 50 x 50. i would like to know how can i tell to my program to use image 1 (from pixel 0 to 49) at one place and to tell again to use image 3 (from pixel 99 to 149) to another place ? or does it work only with BMP image ? how to do it without using MFC ? thanks a lot, Maileen Tag: Exporting DLLs to Visual Basic Tag: 250363
  - 12
    - Conversion operator not callable? I get an error message when I try to compile the code below: ======================== Error message ======================================== error C2664: 'f' : cannot convert parameter 1 from 'c<t1,t2>' to 'const c<t1,t2> &' with [ t1=char, t2=int ] and [ t1=const char, t2=int ] ===================================== Code ==================================== template< typename t1, typename t2 > struct c { c( ) { } operator c< t1 const, t2 >( ) const { return c< t1 const, t2 >( ); } }; template< typename t2 > void f( c< char const, t2 > const& ) { } int __cdecl main ( ) { c< char, int > C; f( C ); } Why is the conversion operator not used in this context? Tag: Exporting DLLs to Visual Basic Tag: 250357
  - 13
    - Dll Entry Point Name Hi, MSDN documentation states: "The name DllMain is a placeholder for a user-defined function. You must specify the actual name you use when you build your DLL." How do you actually accomplish that? I have not been able to find that in the VC.Net documantation. Many thanks, Aaron Fude Tag: Exporting DLLs to Visual Basic Tag: 250350
  - 14
    - Enabling Memory Leak Detection Hi, I am trying to enable memory leak detection based on the url below. If I use _CRTDBG_MAP_ALLOC instead of CRTDBG_MAP_ALLOC in a test program, I can see the offending line numbers and source file get printed out. However in the program that I am trying to find memory leaks, I get the same debug output regardless of whether I #define _CRTDBG_MAP_ALLOC or CRTDBG_MAP_ALLOC. And I only get one line number <dllmodul.cpp(106)> output instead of every offending (leak causing) line number. Why is that? // based on http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vsdebug/html/vxconenablingmemoryleakdetection.asp #define _CRTDBG_MAP_ALLOC #include <stdlib.h> #include <crtdbg.h> . . . _CrtDumpMemoryLeaks(); OUTPUT Detected memory leaks! Dumping objects -> {61} normal block at 0x00872680, 7 bytes long. Data: <MyExename> 43 61 70 47 65 6E 00 {56} normal block at 0x00872748, 33 bytes long. Data: < C > 00 43 00 CD CD CD CD CD CD CD CD CD CD CD CD CD {55} normal block at 0x008726E0, 40 bytes long. Data: < |L > 14 7C 4C 10 16 00 00 00 00 00 00 00 00 00 00 00 dllmodul.cpp(106) : {53} client block at 0x00872590, subtype 0, 64 bytes long. a CDynLinkLibrary object at $00872590, 64 bytes long {52} client block at 0x00872508, subtype 0, 64 bytes long. a CDynLinkLibrary object at $00872508, 64 bytes long {50} client block at 0x00874F68, subtype 0, 64 bytes long. a CDynLinkLibrary object at $00874F68, 64 bytes long Object dump complete. Thanks! Tag: Exporting DLLs to Visual Basic Tag: 250349
  - 15
    - Client Server using TCP/IP - which interface to use? Hi there... I want to write a small utility. It should be front- and backend running on different machines. I don't want to handle error correction or timeouts by myself. Communication is TCP/IP. How could I easyly do the communication? CSocket or something else. Thanks in advance Stefan Tag: Exporting DLLs to Visual Basic Tag: 250346
  - 16
    - GetDIBits is returning 0 hi, i'm geting de bits of to bitmaps into a buffer in order to compare then. the first time i call GetDIBits, it works ok, and returns the number of scanlines an correct data in the buffer. the second time, it returns 0 and does nothing in the baffer. if i change the order of the calls, the second still fails. i know that then bitmaps must not be selected on any DC, and i'm carefully with that. ¿¿any reason why GetDIBits returns 0?? Thank you. by MJM. Tag: Exporting DLLs to Visual Basic Tag: 250338
  - 17
    - reversing bit order Hi folks - I'm writing some code for a checksum algorithm and I need to reverse the order of bits in an unsigned char array, in 4-bit chunks (half byte, or nibble). Example.. the array contains BYTE data: 0001 0110, 0000 0010, 1000 0000 0x16, 0x02, 0x80 Each nibble gets reversed: 1000 0110, 0000 0100, 0001 0000 0x86, 0x04, 0x10 Each nibble will then be added and the results become a checksum nibble. I can do this brute force, one bit at a time, but I'm hoping someone out there will recognize a possible elegant solution. There will always be 5 bytes (40 bits, 10 nibbles) to deal with. Any ideas? Thanks. Tag: Exporting DLLs to Visual Basic Tag: 250334
  - 18
    - Tree control: How do I get the expand / collapse icons? I'm performing a custom draw of the items of a tree control and I need to be able to draw the expand and collapse toggle button ([+] & [-]) that appears to the left of items with children. I need to know how to get that icon, and the coordinates that the OS expects the symbol to be drawn. I can't find this information in the MSDN. Thanks (Sorry that this is the wrong category but there isn't a vc.controls newsgroup) Tag: Exporting DLLs to Visual Basic Tag: 250331
  - 19
    - Initializing member variables Hi, I did this test using VC .NET 7.0: #include <iostream> using namespace std; class A { public: //A () { } // Providing a default constructor makes it work int i; int GetI() { return i; } }; int main(int argc, char* argv[]) { A a; //cout << a.GetI() << endl; //This call works cout << a.i << endl; //Throws Runtime error a.i++; //Throws Runtime Error return 0; } In the lines mentioned, it throws a runtime error saying that the variable is not 'defined'. The variable is not initialized, of course, but what makes it not throw the error if: 1) the default constructor is provided, which does not actually initialize 'i'? 2) a.GetI() is called, again without initializing 'i'? TIA, SD Tag: Exporting DLLs to Visual Basic Tag: 250327
  - 20
    - Using WebBrowser Control, how to Navigate w/o displaying the HTML page. I built an MFC project of the SDI type, hosting a WebBrowser Control. Everything seems to behave properly. I am using the Navigate(LPCTSTR URL) to get web pages. Is it possible and if so how to perform all the functionality of the Navigate() w/o display the page? There is a method called SetVisible(false/true) but when trying to use it, it creates an exception. With and w/o regard to the above question, Is it preferred to have a host of the MDI (or top level MDI) type, as to separate between the host's GUI window and the window in which the WebBrowser Control displays a page (that is if I allow it to do that)? Thanks, David Tag: Exporting DLLs to Visual Basic Tag: 250301
  - 21
    - std::_MAX Replacement I'm migrating from VS6.0 to VS 2003 .Net. One of the breaking changes is that _MAX has been redefined so that std::_MAX will no longer compile. I tried changing each usage to std::max, but that won't compile either. So I went using std::max ... float a = max(b, c); which is compiling. How have other people dealt with this issue? Thanks in advance! Tag: Exporting DLLs to Visual Basic Tag: 250291
  - 22
    - Calling vb.net web service from visual c++ Hi. I am new to this so this may be a dumb question: I am trying to call a web service that is Written in VB.NET from my C++ dll. here is what I did: 1. Create a sample web service (with helloworld function) 2. Create an empty ATL application (it compiled) 3. Added a reference to the wsdl document of the web service to the project. 4. tried to compile it and got an error: syntax error : expecting a type specification near "HelloWorldResult" error points to this line: [id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval] HelloWorldResult *); Here is the code that was generated by Soap Tool Kit when I added a reference: // TestSoapTool.idl : IDL source for TestSoapTool.dll // // This file will be processed by the MIDL tool to // produce the type library (TestSoapTool.tlb) and marshalling code. import "oaidl.idl"; import "ocidl.idl"; [ object, uuid(433144B5-225D-42D8-8E2C-875467ABE7FA), dual, helpstring("IService1SoapProxy Interface"), pointer_default(unique) ] interface IService1SoapProxy : IDispatch { [propget, id(1), helpstring("property URL")] HRESULT URL([out, retval] BSTR *pVal); [propput, id(1), helpstring("property URL")] HRESULT URL([in] BSTR newVal); [propget, id(2), helpstring("property ProxyServerAddress")] HRESULT ProxyServerAddress([out, retval] BSTR *pVal); [propput, id(2), helpstring("property ProxyServerAddress")] HRESULT ProxyServerAddress([in] BSTR newVal); [propget, id(3), helpstring("property ProxyServerPort")] HRESULT ProxyServerPort([out, retval] BSTR *pVal); [propput, id(3), helpstring("property ProxyServerPort")] HRESULT ProxyServerPort([in] BSTR newVal); [id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval] HelloWorldResult *); }; [ uuid(A07EF164-8E81-41FF-9D91-BD74F3C1F67E), version(1.0), helpstring("TestSoapTool 1.0 Type Library") ] library TESTSOAPTOOLLib { importlib("stdole32.tlb"); importlib("stdole2.tlb"); [ uuid(C7AC7808-58F3-4109-B2D9-ACC22521C055), helpstring("Service1SoapProxy Class") ] coclass Service1SoapProxy { [default] interface IService1SoapProxy; }; }; Before I go any further I wanted to know if it is even doable: calling vb-based functions from c++ since all types are different. Is this a common issue? Did I do anything wrong in my steps or is there anything I did not do? Thanks for the help. Tag: Exporting DLLs to Visual Basic Tag: 250284
  - 23
    - Dynamically Set Tab Index Hi, Is there anyway to Dynamically Set the Tab Index of the controls in a mfc dialog? I want two fields to switch tab order under certain conditions. Thanks Marcus de Leon Tag: Exporting DLLs to Visual Basic Tag: 250281
  - 24
    - VC++ 6.0 or higher This is a multi-part message in MIME format. ------=_NextPart_000_000D_01C58D71.02386B80 Content-Type: text/plain; charset="koi8-r" Content-Transfer-Encoding: quoted-printable What is newest environment to build C++ applications? Microsoft VS 6.0 or something better? -- Thank you Vadim S. ------=_NextPart_000_000D_01C58D71.02386B80 Content-Type: text/html; charset="koi8-r" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; charset=3Dkoi8-r"> <META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>What is newest environment to build C++ = applications?</FONT></DIV> <DIV>Microsoft VS 6.0 or something better?</DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>--</FONT></DIV> <DIV>Thank you</DIV> <DIV>Vadim S.</DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML> ------=_NextPart_000_000D_01C58D71.02386B80-- Tag: Exporting DLLs to Visual Basic Tag: 250278
  - 25
    - nmake for Windows 2003 x64 Hi Where can I find nmake for Windows 2003 x64? nmake is needed for some Perl development I'm doing, particularly to install some plug-in packages from CPAN. Thanks tl Tag: Exporting DLLs to Visual Basic Tag: 250277
- Next
  - 1
    - REQ: Screensaver source code Hi, Could anyone show me a site that has screensaver source code? Thanks Jack Tag: Exporting DLLs to Visual Basic Tag: 250273
  - 2
    - unicode and debuging Hey, anybody can advice how to debug unicode, this is real pain in the ... Regular logging also doesn't work... When debuging I'm getting only first character of the srtring... thanks Tag: Exporting DLLs to Visual Basic Tag: 250272
  - 3
    - J-Integra for COM (Java COM interoperability) Looking for Java/COM interoperability tools? Thousands of companies world-wide are using J-Integra for COM for interoperability between Java and Microsoft COM applications. J-Integra for COM is a pure Java implementation of the DCOM protocol, making it several times faster than Web Services. J-Integra for COM Features: * Access J2EE components from VB, C++, ASPs, etc... * Access COM components from EJBs, Servlets, JSPs, Applets, etc... * Pure Java implementation, 100% managed code (no native code required) * Bi-directional: "Java to COM" and "COM to Java" * One-sided deployment (no touch on Microsoft client/server side) * Supports any JVM running on any platform (Windows, Unix, Linux, etc...) * Optional high-speed native mode for Windows platforms * Allows Java clients to subscribe to COM events using standard Java semantics, and COM clients to subscribe to Java events using standard COM semantics * Supports both early binding and late binding access to Java/COM components * Supports the full range of COM Oleautomation types For a free evaluation, visit our website at http://j-integra.intrinsyc.com/ Regards, Shane Sauer Intrinsyc Software International, Inc. J-Integra Interoperability Solutions http://j-integra.intrinsyc.com/ When Web Services are not enough Tag: Exporting DLLs to Visual Basic Tag: 250268
  - 4
    - IDL Help Newbie question: What is the syntax to declare a string constant in an IDL? I'm trying to compile a type lib that I can reference and use from VB project. If I use 'string', I get an error: "syntax error : expecting a type specification or a storage specifer or a type qualifier near "string" If I use 'BSTR', I get an error: error C2440: 'initializing' : cannot convert from 'char [24]' to 'unsigned short *const ' If I use 'wchar_t *' I can compile it, but obviously I cannot use it in VB. TIA. Tag: Exporting DLLs to Visual Basic Tag: 250264
  - 5
    - mscorlib help I am using VC++ and am doing something where I need this: #using <mscorlib.dll>, however, I am told at compile time that I need to compile with /clr. When I used /clr I was told that I cannot use it with /RTC. I can modify /RTC but cannot seem to get rid of it. How can I resolve this problem? Tag: Exporting DLLs to Visual Basic Tag: 250263
  - 6
    - Draw a rect .But the frame change. The rect is disappear. What happen? My program code is following. Please help me. Thanx. John Wild #include <windows.h> #include "resource.h" HINSTANCE hInst; static TCHAR szAppName[]="MyApp"; LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPreInstance,PSTR szCmdLine,int iCmdShow) { HWND hWnd; MSG msg; WNDCLASSEX wndclass; wndclass.cbSize=sizeof(wndclass); wndclass.style=CS_HREDRAW|CS_VREDRAW; wndclass.lpfnWndProc=WndProc; wndclass.cbClsExtra=0; wndclass.cbWndExtra=0; wndclass.hInstance=hInstance; wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION); wndclass.hCursor=LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground=(HBRUSH)(COLOR_WINDOW+1); wndclass.lpszMenuName=MAKEINTRESOURCE(IDR_MENU1); wndclass.lpszClassName=szAppName; wndclass.hIconSm=LoadIcon(NULL,IDI_APPLICATION); RegisterClassEx(&wndclass); hInst=hInstance; hWnd=CreateWindow(szAppName,"Rect Test Function", WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT, CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance, NULL); ShowWindow(hWnd,iCmdShow); UpdateWindow(hWnd); while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } } LRESULT CALLBACK WndProc(HWND hWnd,UINT iMsg,WPARAM wParam,LPARAM lParam) { HDC hDC; RECT rect; HWND hChild,hPopup,hControl; rect.top=100; rect.left=100; rect.bottom=200; rect.right=200; switch(iMsg) { //°T¸¹±M¥Î case WM_CREATE: return 0; case WM_PAINT: PAINTSTRUCT ps; hDC=BeginPaint(hWnd,&ps); EndPaint(hWnd,&ps); return 0; case WM_COMMAND: //¿ï³æ±M¥Îªº switch(LOWORD(wParam)) { case IDM_Demo: MessageBox(hWnd,"Rect Test Function" ,"IDM_Command",MB_OK); return 0; case IDM_Child: hChild=CreateWindow(szAppName,"Rect Test Function", WS_CHILD|WS_CAPTION|WS_VISIBLE|WS_SIZEBOX|WS_SYSMENU, 30,30,150,100,hWnd,(HMENU)101,hInst,NULL); SetActiveWindow(hChild); return 0; case IDM_Popup: hPopup=CreateWindow(szAppName, "Rect Test Function",WS_POPUP| WS_VISIBLE|WS_CAPTION|WS_SYSMENU, 30,30,300,100,hWnd,NULL,hInst, NULL); SetActiveWindow(hPopup); return 0; case IDM_Rect: hDC=GetDC(hWnd); InflateRect(&rect,20,20); FrameRect(hDC,&rect,(HBRUSH) GetStockObject(BLACK_BRUSH)); ReleaseDC(hWnd,hDC); return 0; case IDM_Exit: DestroyWindow(hWnd); return 0; } case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hWnd,iMsg,wParam,lParam); } Tag: Exporting DLLs to Visual Basic Tag: 250261
  - 7
    - Lost on anything pertaining to MessageBox I have the following 2 files: File1.cpp Line 100: MessageBox("ABC"); Line 101: MessageBox(NULL,"ABC",NULL,MB_OK); File2.cpp Line 120: MessageBox("ABC"); Line 121: MessageBox(NULL,"ABC",NULL,MB_OK); When compiling, I am getting two error messages: File1.cpp(100): error C2660: 'CWnd::MessageBoxA' : function does not take 4 arguments File2.cpp(121): error C2660: 'MessageBoxA' : function does not take 1 arguments So it does not like one MessageBox signature in one file and likes the other one While in the other file it is the reverse! #include statement in both files are identical. Couldn't find a clear decription of the usage of MessageBox. I guess it must be related to the base classes of the involved derived classes in each file: class File1_X : public Cdocument class File2_X : public ChtmlView Anybody saw a good & COMPLETE definition of MessageBox? I am simply exhausted from this MessageBoxA stuff, let alone the above wierd behavior. Thanks, David Tag: Exporting DLLs to Visual Basic Tag: 250240
  - 8
    - Release vs Debug (Memory leak...Object Dump) I found out that when I build a project in Debug mode, memory leak...object dump occurs. But when I build the project in Release mode no memory leak...object dump occurs. So my question is that whether the release build have memory leak??? Tag: Exporting DLLs to Visual Basic Tag: 250227
  - 9
    - VS2005 doesn't like its own suggestions I typed std:: A pull down list box poped up with a list of all selections available as expected. Among them is "string" as expected. I choose "string". The compiler then complains that "string is not a member of std"... Any idea about such a puzzle? Thanks, David Tag: Exporting DLLs to Visual Basic Tag: 250226
  - 10
    - Runtime assert -> DBGDEL.CPP Hello , I am getting a Debug Assertion "Error in line 47 at dbgdel.cpp" , though the code I am running has been compiled in release build . To wipe off the doubt that it can be a debug,release build mismatch, I have rebuild all the code in the Release build , but still I am getting this problem . Any help would be appreciated . Thanks , Sujay -- Sujay Ghosh Bangalore, INDIA Tag: Exporting DLLs to Visual Basic Tag: 250219
  - 11
    - VC .NET 2003 - const (public) and non-const (protected) overloaded funcs do not compile Can anybody tell me why this fails to compile with the following error?? Compiling... Test.cpp d:\Sample_Code\Test\Test\Test.cpp(24) : error C2248: 'Foo::Get' : cannot access protected member declared in class 'Foo' d:\Sample_Code\Test\Test\Test.cpp(14) : see declaration of 'Foo::Get' d:\Sample_Code\Test\Test\Test.cpp(7) : see declaration of 'Foo' class Foo { public: Foo() : m_A( 0 ) {} const int &Get() const { return m_A; } protected: int &Get() { return m_A; } private: int m_A; }; int _tmain(int argc, _TCHAR* argv[]) { Foo f; const int &n = f.Get(); return 0; } Tag: Exporting DLLs to Visual Basic Tag: 250218
  - 12
    - ANNC: Reliable Software releases their own C++ Windows Library Seattle, WA -- Seattle-based Reliable Software=AE announces the release their Windows Library into the public domain. Reliable Software Windows Library, RSWL, is the foundation for their compact, feature rich applications including the flagship product, Code Co-op. The use of RSWL in both individual and commercial products is free and not restricted to public domain projects. RSWL provides a thin, easy to understand, object-oriented layer encapsulating the Windows API. Its architecture is based on the ideas described in the book "C++ in Action, Industrial Strength Programming Techniques" (Addison-Wesley 2001). Besides including the encapsulation of basic Windows infrastructure, like handles, message loops, Window classes and instances, dialog boxes, and Windows controls; it also provides sub-libraries for many of the Windows subsystems. There is a compact graphics library built around GDI, a file library that includes memory-mapped files, a thread library with synchronization primitives, a network library including FTP, BITS, SMTP and POP3, and many others. More information can be found online at http://www.relisoft.com/rswl.html Reliable Software uses a novel mechanism for the distribution of RSWL sources and updates using a free, e-mail based, version of its own distributed version control system, Code Co-op. Reliable Software's contributions to the development community go beyond Code Co-op. On their website, they provide extensive information for developers, including tutorials, discussion forums, and an on-line book. The founder of Reliable Software is the author of "C++ in Action" and a regular contributor to various trade magazines. Tag: Exporting DLLs to Visual Basic Tag: 250216
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    - DSWebCamCap I have bought the book "Programming Microsoft DirectShow for digital video and television" and I'm trying to compile and link the DSWebCamCap example for my web cam. However, it fails trying to link - error: it can't find C:/Program/microsoft.obj. What is microsoft.obj, how is it created, why, and how can I make sure it is made so that I can compile, link and run the DSWebCamCap example? Tag: Exporting DLLs to Visual Basic Tag: 250213
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    - Get friendly name of struct Is there any way to get the value name of an enumeration as a string? i.e. typedef enum EventID { ServiceStart = 100, ServiceStop = 101, }; char* szName = Foo(ServiceStop); //Then szName would equal "ServiceStop\0" Bob Tag: Exporting DLLs to Visual Basic Tag: 250206
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    - Calling .Net web services from Visual C++ (Soap Tool Kit) Hi. I am new to this so this may be a dumb question: I am trying to call a web service that is Written in VB.NET from my C++ dll. here is what I did: 1. Create a sample web service (with helloworld function) 2. Create an empty ATL application (it compiled) 3. Added a reference to the wsdl document of the web service to the project. 4. tried to compile it and got an error: syntax error : expecting a type specification near "HelloWorldResult" error points to this line: [id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval] HelloWorldResult *); Here is the code that was generated by Soap Tool Kit when I added a reference: // TestSoapTool.idl : IDL source for TestSoapTool.dll // // This file will be processed by the MIDL tool to // produce the type library (TestSoapTool.tlb) and marshalling code. import "oaidl.idl"; import "ocidl.idl"; [ object, uuid(433144B5-225D-42D8-8E2C-875467ABE7FA), dual, helpstring("IService1SoapProxy Interface"), pointer_default(unique) ] interface IService1SoapProxy : IDispatch { [propget, id(1), helpstring("property URL")] HRESULT URL([out, retval] BSTR *pVal); [propput, id(1), helpstring("property URL")] HRESULT URL([in] BSTR newVal); [propget, id(2), helpstring("property ProxyServerAddress")] HRESULT ProxyServerAddress([out, retval] BSTR *pVal); [propput, id(2), helpstring("property ProxyServerAddress")] HRESULT ProxyServerAddress([in] BSTR newVal); [propget, id(3), helpstring("property ProxyServerPort")] HRESULT ProxyServerPort([out, retval] BSTR *pVal); [propput, id(3), helpstring("property ProxyServerPort")] HRESULT ProxyServerPort([in] BSTR newVal); [id(4), helpstring("method HelloWorld")] HRESULT HelloWorld([out, retval] HelloWorldResult *); }; [ uuid(A07EF164-8E81-41FF-9D91-BD74F3C1F67E), version(1.0), helpstring("TestSoapTool 1.0 Type Library") ] library TESTSOAPTOOLLib { importlib("stdole32.tlb"); importlib("stdole2.tlb"); [ uuid(C7AC7808-58F3-4109-B2D9-ACC22521C055), helpstring("Service1SoapProxy Class") ] coclass Service1SoapProxy { [default] interface IService1SoapProxy; }; }; Before I go any further I wanted to know if it is even doable: calling vb-based functions from c++ since all types are different. Is this a common issue? Did I do anything wrong in my steps or is there anything I did not do? Thanks for the help. Tag: Exporting DLLs to Visual Basic Tag: 250200
  - 16
    - using enums in array references I tested the following lines of code, and they work, but I was wondering if usage of enums like this is frowned upon. I don't really ever see enums used like this, and I was wondering why. enum index {first, second, third}; int i[3]; i[first] = 1; i[second] = 2; i[third] = 3; Thanks, Tag: Exporting DLLs to Visual Basic Tag: 250198
  - 17
    - Use IE as help window I would like to use IE (or registered browser) to display some HTML help in my application. In addition I would like to continue to use the same instance for subsequent help queries (provided it is still open). Also, I want to be able to make it an always on top window so that giving focus to the application does not obscure it. I've got the easy part opening IE using ShellExecute(). Can I do what I am suggesting? I'm willing to change the method of launching if necessary. Thanks, Drew Tag: Exporting DLLs to Visual Basic Tag: 250196
  - 18
    - space or tab in #define I find there are some statements like "# define PI 3.14159" in our code. Please note that there is a space between "#" and "define". I have tried space and tab in VC project, and find they work well. But I wonder whether it is standard usage in standard C, especially in make of cygwin. Thank you! Best regards, GanJinhua Tag: Exporting DLLs to Visual Basic Tag: 250188
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    - To Display a JPEG Image Can I use the Bitmap Functions like CreateBitmap, Bitblt to display a JPEG Image? Tag: Exporting DLLs to Visual Basic Tag: 250187
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    - diff betn SetLocalTime() & SetSystemTime() ? What is the difference between SetLocalTime() & SetSystemTime(). Regards, KC. Tag: Exporting DLLs to Visual Basic Tag: 250181
  - 21
    - difference between AfxOleInit() & CoUninitialize() ? Hi to All, My Questions : 1. What is the difference between AfxOleInit() & CoUninitialize() in case of shell object? 2. In MFC appln, When i use CoInitialize(), then is it neccessary to UnInitialize it ? and if yes,where do i UnInitialize() it? waiting eagerly for replay. KC. Tag: Exporting DLLs to Visual Basic Tag: 250178
  - 22
    - I cant see the menu. Please help me? My program code is following. Could u tell me what happen about menu? Thanx john wild #include <windows.h> #include "resource.h" HINSTANCE hInst; LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR szCmdLine,int iCmdShow) { static TCHAR szAppName[]="My App"; HWND hWnd; MSG msg; WNDCLASSEX wndclass; //©w¸qµøµ¡Ãþ§O(WINDOW CLASS) wndclass.cbSize=sizeof(wndclass); wndclass.style=CS_HREDRAW|CS_VREDRAW; wndclass.lpfnWndProc=WndProc; wndclass.cbClsExtra=0; wndclass.cbWndExtra=0; wndclass.hInstance=hInstance; wndclass.hIcon=LoadIcon(NULL,IDI_APPLICATION); wndclass.hCursor=LoadCursor(NULL,IDC_ARROW); wndclass.hbrBackground=(HBRUSH)(COLOR_WINDOW+1); wndclass.lpszMenuName="IDR_MENU1"; wndclass.lpszClassName=szAppName; wndclass.hIconSm=LoadIcon(NULL,IDI_APPLICATION); RegisterClassEx(&wndclass); hWnd=CreateWindow(szAppName,"¨ç¦¡¥Ü½d",WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT, CW_USEDEFAULT,NULL,NULL,hInstance,NULL); ShowWindow(hWnd,iCmdShow); UpdateWindow(hWnd); while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hWnd,UINT iMsg,WPARAM wParam,LPARAM lParam) { HDC hDC; switch (iMsg) { case WM_CREATE: return 0; case WM_PAINT: { PAINTSTRUCT ps; hDC=BeginPaint(hWnd,&ps); EndPaint(hWnd,&ps); return 0; } case WM_COMMAND: { switch(LOWORD(wParam)) case IDM_Demo: MessageBox(hWnd,"Demo", "idm_Command",MB_OK); return 0; case IDM_Exit: DestroyWindow(hWnd); return 0; break; } case WM_DESTROY: PostQuitMessage(0); return 0; } /*---End of switch---*/ return DefWindowProc(hWnd,iMsg,wParam,lParam); } /*---End of Program---*/ Tag: Exporting DLLs to Visual Basic Tag: 250171
  - 23
    - simple dll question How can you register a VC++6 dll which won't register with regserv32? This project was made with MFC App Wizard(dll). The project works fine when it's placed in Windows\System32\ for Visual Basic 6, but I need to place it somewhere else. Thank you. -- Rick Tag: Exporting DLLs to Visual Basic Tag: 250165
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    - VC 8 crash (fatal internal error) when using nested exceptions Greetings, While migrating some old code (5+ years) to VC 8, Beta 2 (for targeting AMD64), I encountered an internal compiler error when building release builds. This code builds fine in both VC 6 & 7.1 when targeting x86 (I think it even built fine in VC 4.2 if my memory squeeks correctly). The code in question has nested try/except blocks, for example: " __try { //OS Call } __except( EXCEPTION_EXECUTE_HANDLER ) { __try { //OS_call(different parameters) } __except( EXCEPTION_EXECUTE_HANDLER ) { //review parameters, cleanup, unwind } } " This crash was easily worked around by moving the nested exception block to its own function. Here are the juicy details from a cross build: " Finished searching libraries Finished pass 1 Generating code xxxx.cpp(1109) : fatal error C1001: An internal error has occurred in the compiler. (compiler file 'f:\beta2\vctools\compiler\utc\src\P2\main.c[0x10B080F6:0x0000004F]', line 183) To work around this problem, try simplifying or changing the program near the locations listed above. Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information LINK : fatal error LNK1000: Internal error during IMAGE::BuildImage Version 8.00.50215.44 ExceptionCode = C0000005 ExceptionFlags = 00000000 ExceptionAddress = 10B080F6 (10B00000) "D:\msvc80\VC\BIN\x86_amd64\c2.dll" NumberParameters = 00000002 ExceptionInformation[ 0] = 00000000 ExceptionInformation[ 1] = 0000004F CONTEXT: Eax = 00000000 Esp = 0012EDCC Ebx = 00000000 Ebp = 0012EDF8 Ecx = 00000000 Esi = 00000000 Edx = 073E4C00 Edi = 00000000 Eip = 10B080F6 EFlags = 00010202 SegCs = 00000023 SegDs = 0000002B SegSs = 0000002B SegEs = 0000002B SegFs = 00000053 SegGs = 0000002B Dr0 = 00000000 Dr3 = 00000000 Dr1 = 00000000 Dr6 = 00000000 Dr2 = 00000000 Dr7 = 00000000 " Here's the same from the native compiler (depending on your preference): " xxxxx.cpp(1109) : fatal error C1001: An internal error has occurred in the compiler. (compiler file 'f:\beta2\vctools\compiler\utc\src\P2\main.c[0x0000000010C4B254:0x0000000000000078]', line 183) To work around this problem, try simplifying or changing the program near the locations listed above. Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information LINK : fatal error LNK1000: Internal error during IMAGE::BuildImage Version 8.00.50215.44 ExceptionCode = C0000005 ExceptionFlags = 00000000 ExceptionAddress = 0000000010C4B254 (0000000010C40000) "D:\msvc80\VC\BIN\amd64\c2.dll" NumberParameters = 00000002 ExceptionInformation[ 0] = 0000000000000000 ExceptionInformation[ 1] = 0000000000000078 CONTEXT: Rax = 0000000000000000 R8 = 00000000FFFE94F2 Rbx = 0000000007210000 R9 = 0000000000000000 Rcx = 0000000000000000 R10 = 726464416D654D74 Rdx = 0000000000000000 R11 = 0000000000000D4C Rsp = 000000000023E1B0 R12 = 0000000007245960 Rbp = 0000000007248106 E13 = 00000000072481C8 Rsi = 0000000006871900 R14 = 0000000000000000 Rdi = 00000000071FBBE8 R15 = FFFFFFFFFFFFFFFF Rip = 0000000010C4B254 EFlags = 0000000000010202 SegCs = 0000000000000033 SegDs = 000000000000002B SegSs = 000000000000002B SegEs = 000000000000002B SegFs = 0000000000000053 SegGs = 000000000000002B Dr0 = 0000000000000000 Dr3 = 0000000000000000 Dr1 = 0000000000000000 Dr6 = 0000000000000000 Dr2 = 0000000000000000 Dr7 = 0000000000000000 " It would be nice if this was fixed in a future release of this compiler. Though busy, I may be able to assist you with additional data, though I hope that this will be easy for you to reproduce and fix (or may have already fixed but not yet released). Thanks! -- Jeremiah National Instruments -- http://www.ni.com "stack smasher" djajadi tribute. Tag: Exporting DLLs to Visual Basic Tag: 250164
  - 25
    - question about the processes created in VC Hi, I am new to the windows platform and working in VC++ on WIN-2000 platform. I have a process P1. P1 has to create another process P2 ( I'm using CreateProcess API for the same). Now if some one kills P2 or P2 exits gracefuly, is there any any for P1 to know that P2 has exited. Similarly if P1 exits then is there any mechanism so that P2 can know that P1 has exited. Pls solve my problem Thanks in advance Vidyut Gupta Tag: Exporting DLLs to Visual Basic Tag: 250156

Hai,

I have written a DLL in VC++ and accessing it in VB. It works fine when
the program runs within VB-IDE. But, when I created an EXE, it didn't work.
What might be the problem. Please help me in this.

Thanks in advance.

Kiran Kumar

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Re: Exporting DLLs to Visual Basic by lallous

lallous
Mon Jul 25 01:43:56 CDT 2005

Hello

What is the calling convention of your exported C++ routines?

AFAIK, VB calls external DLLs using stdcall convention.

Regards,
Elias
"Kiran Kumar" <kirankumar@nannacomputers.com> wrote in message
news:eX94QFOkFHA.1480@TK2MSFTNGP10.phx.gbl...
> Hai,
>
> I have written a DLL in VC++ and accessing it in VB. It works fine when
> the program runs within VB-IDE. But, when I created an EXE, it didn't
> work. What might be the problem. Please help me in this.
>
> Thanks in advance.
>
> Kiran Kumar
>

Top