VC++ .NET Excel SDK

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- Previous
  - 1
    - Simple bitwise AND operation Hello, I am attempting to implement what should a be very straightforward bitwise comparison, in order to mask some bits off of a value. My goal here is to take a 32 bit value, and mask out all but the bottom 21 bits. When I attempt this, the result is always a 0 (??) Thanks in advance for anyone who could bail me out here. Here is the code I used: #include <stdio.h> #include <string.h> // for string comparisons #include <stdlib.h> //ASCII to float conversions unsigned int LOW21BSET = 0x001FFFFF; unsigned int m301 = 0; int main (void) { m301 = 134217728; m301 = m301 & LOW21BSET; printf ("m301 is %d\n", m301); return (0); } -- Tag: VC++ .NET Excel SDK Tag: 262815
  - 2
    - command line redirection doesn't work with console c++ program Hi, I have made a small service program in C++. I use printf to print debug/log messages. When I redirect output to a log file "myprogram > log.txt" the file log.txt stays empty. My program can be recompiled for Linux, and here the same thing happens. I have done a minimal C++ program, here redirection works fine. What can cause command line redirection not to work as expected? Thanx in adv Tage Tag: VC++ .NET Excel SDK Tag: 262814
  - 3
    - fatal error C1083: Cannot open include file: 'iostream.h': No such file or We are trying to use MS Visual Studio .NET to compile and link example programs from a C++ book, in console mode, i.e. not MFC . Error message i s: c4.cpp(5) : fatal error C1083: Cannot open include file: 'iostream.h': No such file or directory The projects and solutions are in C:\My Documents\Visual Studio Projects What is problem? solution? Should we use 'console' application? or Win32? or? Thanks e.g. of program : // ctut3.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> using namespace std; int _tmain(int argc, _TCHAR* argv[]) { cout << "Hello World!"; cout << "I'm a C++ program"; return 0; Tag: VC++ .NET Excel SDK Tag: 262801
  - 4
    - catching ACCESS VIOLATION hi, I m working on video conferencing application. I m facing one problem. The decoder of my application crashes with ACCESS VIOLATION. I m doing basic authentication of the video data packets like sequence number but the problem is sometimes decoder get crash with access violation. I m suspecting the cause is due to bad data passed to decoder. I want to catch the crash and want to show some nice message box. I tried to use try/catch(...) but couldnt catch it. My video application is basically an ATL COM EXE. Please help me out. Regards Usman Tag: VC++ .NET Excel SDK Tag: 262797
  - 5
    - Why CorExitProcess? In a pure Win32 app, let's say hello.c, the generated code uses CorExitProcess funcion from mscoree.dll to finalize the app.... Why? []s Fred Tag: VC++ .NET Excel SDK Tag: 262796
  - 6
    - Changing button font hi.. I'm trying to change the font of the button window [not the button on Dialog Box] I have used WM_SETFONT message after creating font , using API CreateFontIndirect() , but it is not working , still showing the font in Bold format, here is the following code i'm using.... plz let me know where i'm going wrong LOGFONT lf; HFONT hFont; /* * for fints on buttons */ lf.lfHeight = 25; lf.lfEscapement = 2700; lf.lfOrientation = 0; lstrcpy(lf.lfFaceName, TEXT("Times New Roman")); g_hFontLeft = CreateFontIndirect(&lf); CreatWindow("button", ....); SendMessage(hButton, WM_SETFONT, g_hFontLeft , 0); Tag: VC++ .NET Excel SDK Tag: 262781
  - 7
    - LNK2001 error I created a VC++ solution. The solution has several project: - One static library project named "Common". - Several other dll project that link the library project. I've checked the "Common" in the project dependence dialog box. Also I've tried to add reference to Common ("References... -> add new reference"). However, I always got the errors: Error 13 error LNK2001: unresolved external symbol "public: virtual class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Param<class CEmpty<double> >::toStr(void)" (?toStr@?$InParam@V?$CEmpty@N@@@@UAE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) proc.obj What I missed? Thanks. Tag: VC++ .NET Excel SDK Tag: 262778
  - 8
    - How to add Information in Sam.log file Dear All, I had seen a software which uses the sam.log file for their basic operation. Now I need is, Is there any way to add and retrieve some information from the sam.log file. If possible how it can be done ? Let me know if u need some more information Tag: VC++ .NET Excel SDK Tag: 262777
  - 9
    - Unsigned's maximum capacity In VC++ 6, what is unsigned's maximum capacity? Can it be used to store a 9 digits values such as 999,999,999? The MSDN help "mk:@MSITStore:C:\Program%20Files\Microsoft%20Visual%20Studio\MSDN\2001OCT\1033" says, the "Range of Values" for "unsigned" is "System dependent". What does it mean? FYI, I'm rurnning Windows 2000 with SP4 on an Intel P4 machine. Tag: VC++ .NET Excel SDK Tag: 262773
  - 10
    - Copy window contents to repaint another window Hey everyone: I want to copy the way say window1 is currently displayed (in terms of what has been painted). This is becauase I now need to call a command that will send window1 to all black. Now I want to paste in the way window1 looked, which I have copied in step1. Please tell me there's a nice & easy way to do this, `Chase (membos AT yahoo DOT com) Tag: VC++ .NET Excel SDK Tag: 262772
  - 11
    - using std::rel_ops How do I use the canonical definition of != out of == in std::rel_ops? #include <utility> namespace n { class c { }; bool operator ==( c const&, c const& ) { return true; } using namespace std::rel_ops; } int main() { n::c a, b; a != b; // does not compile } Tag: VC++ .NET Excel SDK Tag: 262768
  - 12
    - Changing a runtime UUID value that is declared with __declspec(uui I want to change the UUID of items that are decorated with __declspec(uuid()) at runtime. I want to actually change the __uuidof references because there are macros and templated classes (e.g. CComPtr) that expect to be able to use __uuidof. So I either have to change all points where __uuidof is used to make it retrieve the UUID at runtime without using __uuidof or I find a way to change the actual memory address that __uuidof is using. Is there a simple way to do this? I've done some investigation and I have found that at least in non-optimized builds __uuidof results in a reference to an extern "c" declaration similar to the following: extern "C" GUID _GUID_aa968851_31e5_406e_8673_32b01ea26ae3; And I've found that I can change that value and in a non-optimized build it changes all of the __uuidof references. However, I suspect members of the compiler team will jump up and down when they see this usage. Are you jumping yet? I'm just curious: Is it almost guaranteed that optimizations will break attemps at doing this? Theoretically speaking is there a way to prevent the optimizer from binding the __uuidof value at compile time? Perhaps there's a simpler solution that I'm missing? Thanks! - Don Tag: VC++ .NET Excel SDK Tag: 262762
  - 13
    - Understanding CRT debug info The following applies to a VC++ 7.1 app. running under XP. Our app. grows without bound until memory exhaustion finally occurs (after a few days). We've searched high and low for memory leaks, but we've found none and are convinced this is not the problem. We are also convinced that we don't have a problem failing to release shared pointers (which we make *extremely* heavy use of; this actually leaves little chance for a memory leak in the classic sense). Our process size at startup is something on the order of 30 meg. I instrumented our app. with a thread that wakes up every minute, calls _CrtMemCheckpoint() and logs the lSizes[_NORMAL_BLOCK] field to a file. After letting the app. run overnight, I came in to find steady growth with a most recent reported normal block allocations of 128,482,146 bytes. Task manager reported a VM size of 216652K. I then selected a debug menu item we coded in to report the number of objects of suspect classes. I found nothing unusual in this report. This is the only user gesture I made, and this debug instrumentation does nothing that invovles massive deallocations. Nonetheless, after making a user gesture in the app., I found that the reported normal block allocations had dropped to 29,045,442. However, the VM size had barely dropped at all. What might this suggest? Tag: VC++ .NET Excel SDK Tag: 262755
  - 14
    - Newbie Q - Numberfmt not display number Hello, I'm trying to use the NumberFmt structure to display numbers and it will not display the number. When I remove the NumberFmt structure from the GetNumberFormat function, it displays the number with no problem. I can't determine what I'm doing wrong. Here's the code: CRect m_rectangle = new CRect(400,500,800,400); TCHAR szNum[]="14555435"; TCHAR szBuf[20]; NUMBERFMT numFormat; numFormat.Grouping=3; numFormat.LeadingZero=10; numFormat.NumDigits=1; numFormat.NegativeOrder=0; numFormat.lpDecimalSep = "."; numFormat.lpThousandSep = ","; GetNumberFormat( LOCALE_USER_DEFAULT, 0, szNum, &numFormat, szBuf, sizeof(szBuf) ); dc.DrawTextA( (LPCTSTR)szBuf, sizeof(szBuf), m_rectangle, DT_VCENTER | DT_SINGLELINE ); Any help is appreciated. Thanks. Tag: VC++ .NET Excel SDK Tag: 262747
  - 15
    - Transparent Control I have to create transparent static text in an ATL Composite Control. I did map WM_CTLCOLORSTATIC & WM_CTLCOLORDLG messages like MESSAGE_HANDLER(WM_CTLCOLORSTATIC, OnCtlColorStatic) MESSAGE_HANDLER(WM_CTLCOLORDLG, OnCtlColorStatic) LRESULT OnCtlColorStatic(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled ) { bHandled = TRUE; SetBkMode((HDC) wParam, TRANSPARENT); return (LRESULT)GetStockObject(HOLLOW_BRUSH);; } But the Static Text not become transprent. What should I do? ( This is a non MFC ActiveX) ( When I called ::SetBkColor((HDC) wParam, RGB(0,0,255)); from this function, the bg color changed) Any hints will be great help Tag: VC++ .NET Excel SDK Tag: 262741
  - 16
    - Easy way to convert Trad-Chinese to Simp-Chinese. MS Office Word support both Trad-Chinese and Simp-Chinese Font code. If your program have messages in Trad-Chinese code. you can convert these message by Office Word, by Word menu File-> Save as -> Choice encode. because simp-Chinese is a superset of Trad-Chinese. so you can not convert simp-Chinese to Trad-Chinese. BTW: Both language have little differ, such as US-English with UK-English. don't mind that. Regards. Tag: VC++ .NET Excel SDK Tag: 262739
  - 17
    - Multiple Audio Output Channels New tutorial with source code. How to configure and play audio through multiple channels. http://www.digitaltutor.info/modules.php?name=News&file=article&sid=2 Tag: VC++ .NET Excel SDK Tag: 262738
  - 18
    - vc++ 7.1 accepts extra qualifications, though it shouldn't The following code compiles, though it shouldn.t: namespace f { namespace a { class d; class a::d { }; // resolves f::a::d } } Tag: VC++ .NET Excel SDK Tag: 262727
  - 19
    - LPCTSTR vs const char* in Visual C++ 2005 Greetings! I'm converting programs written on Visual C++.NET 2003 to Visual C++ 2005. While building them with Visual Studio 2005, I got hundreds of errors like: "cannot convert parameter 1 from 'LPCTSTR' to 'const char *'" or "cannot convert parameter 1 from 'const char *' to 'LPCTSTR'". I wrote a simple application to duplicate it (see below): #include "stdafx.h" #include "windows.h" int Work(LPCTSTR s) { return strlen(s); } int _tmain(int argc, _TCHAR* argv[]) { Work("ABCDE"); return 0; } Does anyone know how to solve it? I don't want to add explicit conversion because there are too many places in too many files. Thanks in advance! Tony Tag: VC++ .NET Excel SDK Tag: 262724
  - 20
    - C for DSP Hi, I couldn't find any complete and formal reference for DSP from google . I'm programming in C. I am trying to see what the previous employee was trying to do in his program. Thanks Jack Tag: VC++ .NET Excel SDK Tag: 262722
  - 21
    - Internet Explorer_Server Retrieveing selected text HI all, I am hooking an application containing a Internet Explorer_Server class window. The user will be able to select any text in the window. Is it possible to retrieve only the text selected and not the whole inner html Thanks Sanjay Tag: VC++ .NET Excel SDK Tag: 262718
  - 22
    - DllImportAttribute problem with VC++.Net Hi, I'm using visual c++.net 2003 and I'm having a problem getting DllImportAttribute to import a function from a .dll... The error message that I'm receiving: LIBCMTD.lib(wincrt0.obj) : error LNK2019: unresolved external symbol _WinMain@16 referenced in function _WinMainCRTStartup C:\DATA\Visual Studio Projects\eDNA Test Code\Debug\eDNA Test Code.exe : fatal error LNK1120: 1 unresolved externals Here is my code: #include "stdafx.h" #include "time.h" #include <string> #using <mscorlib.dll> using namespace System; using namespace System::Runtime::InteropServices; using namespace System::IO; using namespace std; using namespace System::Collections; [DllImportAttribute("ezdnaapi.dll", EntryPoint= "DNAGetRTValueAsString", CharSet=CharSet::Auto)] extern int DNAGetRTValueAsString(char *szPoint, char *szValue, unsigned short nValue); The dll is in the systems32 folder. Can anyone give me some advice with this? thanks! Sande Tag: VC++ .NET Excel SDK Tag: 262712
  - 23
    - linkage of free functions? Considering the following declarations void f1( ); namespace { void f2( ); } both f1 and f2 have external linkage, but may f2 be referred to from scopes of other translation units? If so, how? If no, then this constradicts the definition of "a name with external linkage": Tag: VC++ .NET Excel SDK Tag: 262709
  - 24
    - bug: std::max Hello, Okay, since I am only experimenting with Visual C++ I should not be extremely strict, but what I found will surprise many. I was _very_ surprised. In case this bug is known (I couldn't find it reported, though), ignore my report. In case you find the code being in error - it is supposed to be 100% Standard C++ - tell me and I'll take a break from C++. I am using Visual C++ 2005 Express Edition. First of all, here the code: #include <iostream> #include <ostream> #include <utility> int main() { typedef unsigned long bug_type; bug_type a = 2; bug_type b = 34; bug_type c = 534; bug_type d = std::max(std::max(a, b), c); std::cout << "max value: " << d << "\n"; } Create a new Win32 console project. I created mine without precompiled headers and empty, but I don't think it matters (haven't tried it though). Do not modify any project properties. Add the code to the project, compile in Debug and Release mode. Output is as expected. Now set "project properties -> Configuration Properties -> C++ -> Language -> Disable Language Extensions" to true. Compile again in Debug and Release mode, also pay attention to warning issued. Now run both programs, and take a look at the output in debug mode and release mode. Now some properties of the bug: 1) It does not happen if some other type (e.g. int, long) is used as bug_type. 2) It does not happen if there is only one std::max, e.g. the following line: bug_type d = std::max(a, b); does not cause symptorms 3) It does not appear when language extensions are disabled (default) 4) It only appears in debug mode. I find this really cool. Cool because such a simply bug, cool because it took ages to track it down, cool because it vanishes in release mode. If someone knows a prize for me, I will happily take one :-) I will report it to the Microsoft page if people here agree that: a) it is a bug, not my code being wrong b) it is not reported c) it can be reproduced on other machines I wait with reporting because it looks so strange I believe I am dreaming. Tell me if I am not. Thomas Tag: VC++ .NET Excel SDK Tag: 262705
  - 25
    - Extra Character when doing File::WriteLine When the following code is writes to the file I get an extra character... outSW->WriteLine(S"BTC Networking\xAE"); I'm wanting to put the "registered trademark" symbol (\xAE) on the end of the line. It does write to the file, but I get the character \xC2 in front of the \xAE symbol also which I do not want. Thanks for any help for I'm very new to VC++...John Tag: VC++ .NET Excel SDK Tag: 262698
- Next
  - 1
    - help on using <list> <vector> in a simple VC program I'm using VC++ .Net to do a simlple program. I tried to use <vector>, <list> in the program, and I simply put the folowing lines " #include <list> #include <vector> #include <string> using namespace std; ..... vector <int> list; " in the head part of my file "simple.h". But it gives compilation error when I try to compile it in "Debug" mode, but it's ok in the "Release" mode. I tries several ways to solve it, but I always got compilation error related to files: "xdebug", "xmemory"... Does someone know what I should do to make it working in "Debug" mode? Thanks very much Tag: VC++ .NET Excel SDK Tag: 262697
  - 2
    - recommended way to create vc windows application Hi everyone, I have been creating simple vc dialog applications. However id like to start creating applications with menus and dropdown boxes etc. What is the best way of going about this? I heard of MFC. Is that the recommended path? any help most appreciated cheers, john Tag: VC++ .NET Excel SDK Tag: 262690
  - 3
    - Memory fragmentation Hello all, The image size of my VC++ 7.1 app. (under XP) grows without bound. I've searched extensively for memory leaks, shared pointers that aren't released, and the like, and have found nothing. The next thing I would like to investigate is the possibility of memory fragmentation. Can anybody suggest tools that allow this kind of heap analysis? Thank you, Dave Tag: VC++ .NET Excel SDK Tag: 262689
  - 4
    - ToolbarWindow32 ho can i Create a Window of ClassName '' ToolbarWindow32'' Tag: VC++ .NET Excel SDK Tag: 262683
  - 5
    - what is Windows service ? hi what is Windows service ? Tag: VC++ .NET Excel SDK Tag: 262682
  - 6
    - ToolbarWindow32 how do i Create a Window of ClassName "ToolbarWindow32" Tag: VC++ .NET Excel SDK Tag: 262677
  - 7
    - ToolbarWindow32 How do I Create a Window of ClassName "ToolbarWindow32" Tag: VC++ .NET Excel SDK Tag: 262676
  - 8
    - ToolbarWindow32 how do i create a Window of ClassName "ToolbarWindow32" ? Tag: VC++ .NET Excel SDK Tag: 262675
  - 9
    - ToolbarWindow32 How to Create a Window of Classname "ToolbarWindow32" Tag: VC++ .NET Excel SDK Tag: 262673
  - 10
    - key press logger for IE alone Hi all, I want to develop a application that logs the keys pressed only when IE is active(i.e. in focus).The hook must not log any key press when any windows or applications are in focus.How to do this? Thanks and regards, hema Tag: VC++ .NET Excel SDK Tag: 262668
  - 11
    - Passing a structure vs passing a pointer? I have a lot of functions that I wrote where I pass a structure RECT. I am wondering if it would be more efficient executable code if I passed a pointer to the RECT instead. The difference in the functions is that I would need to recode my RECT elements to use the "->" instead of the "." - I don't want to do that unless it would save runtime efficienty. Does anyone know how VC++ 6.0 handles this? littleberry Tag: VC++ .NET Excel SDK Tag: 262664
  - 12
    - Question about return by reference? Hello all: When I compile const char* msg_to_usr2(void) { const int rsp_cnt = 5; // this is wrong char usr_msgs[] = "Hello"; return usr_msgs; } warning C4172: returning address of local variable or temporary while the following code is correct. const char* msg_to_usr2(void) { const int rsp_cnt = 5; // this is correct char* usr_msgs[] = {"hello"}; return usr_msgs[0]; } Because the syste has assigned a memeory space to usr_msgs[0] which is used to store the memory location of "hello" in heap memory, the program returns the string without error. I guess there are some other reasons for it. May anyone give me some comments? THank you -Daniel Tag: VC++ .NET Excel SDK Tag: 262642
  - 13
    - Excel automation problem - dialog becomes visible hello, I have a problem in my MFC class library (VS2003) w.r.t excel automation. I open an excel file to grab some data and close it. When the user clicks the button to open another excel file, the file that I previously used is show in an excel window that opens... (i NEVER want excel to be visible) My interface to the excel automation is implimented through a singleton object. I think that the focus of excel (even though the visible property is FALSE) is being propagated to the top when focus is lost on my app (focus going to the open dialog). Trying to set breakpoints i can see that the excel window opens before the code to launch the open dialog. Any hints/tips would be appreciated. Jamie Tag: VC++ .NET Excel SDK Tag: 262635
  - 14
    - How to determine the owner of serial port? Hi folks, is there a way to determine the owner of a serial port? I would like to log the name of the application/service that opened a serial port in case my service failes to open it. (How) can this be done? Any informations are appreciated. Tag: VC++ .NET Excel SDK Tag: 262631
  - 15
    - Hooking the keyboard from IE Hi all, I have developed a BHO that installs low level keybaord hooks and CBT hooks globally whenever IE is opened.The keys that are pressed when IE is active are to be captured.I am trying to check whether the IE is active first, If it is i set a boolean flag.In the key hook proc ,if the flag is set, the keys are sent for further processing.The keyboard hooks is working fine(when checked separately), but the CBT hooks is not working properly. The IE page is taking a long time to load and after it loads, its not informing me abt whether the IE is active. The only code returns is the Window creations.Nothing else is happening. My hook proc is as follows: LRESULT CALLBACK CBTProc(int code, WPARAM wParam, LPARAM lParam) { if(code==HCBT_ACTIVATE) { GetClassName((HANDLE)wParam, text, TXTLENGTH); if (text[0]=='I' && text[1]=='E') IE_is_active=TRUE;// based on this my keyboard hooks is checked. else IE_is_active=FALSE; } return CallNextHookEx(hhookMsg, code, wParam, lParam); } Is this correct? wat am i missing in this?. thanks and regards, Hema Tag: VC++ .NET Excel SDK Tag: 262628
  - 16
    - 3 doubts Hi, 1. How do I share memory(using #pramga data_seg) between VB & VC++ applications and both are in different processes. Is it possible? 2. How do I stop console window? (for ex: I have created console app. with MFC support. The o/p of this application is Dialog box only. But, console window also there. I want to stop console window only. How?). 3.How can I convert win32 console app. to win32 sdk app.? Thanks & Regards, -- Reesh Tag: VC++ .NET Excel SDK Tag: 262625
  - 17
    - hi group i got CFileDialog multiselect problem please help hi guy's here is one problem i am facing. actually i am a new bee in mfc so please help. it is a problem related with multiple file selection. i am able to get only upto 10 filenames by following method. my problem is the folllowing code is working for only 10-12 files. void CMainFrame::OnProjectAddfile() { CFileDialog openDialog( TRUE, _T(""),_T(""), OFN_READONLY| OFN_HIDEREADONLY| OFN_PATHMUSTEXIST| OFN_ALLOWMULTISELECT, _T("C Files (*.c)|*.c|(*.s)|*.s|(*.h)|*.h||")); if(openDialog.DoModal()==IDOK) { POSITION ps; CString MultiFileName[MAX_PATH]; int FileNumber=0; ps=openDialog.GetStartPosition(); while(ps) { MultiFileName[FileNumber]=openDialog.GetNextPathName(ps); FileNumber++; } } } so i tried this void CMainFrame::OnProjectAddfile() { CFileDialog openDialog( TRUE, _T(""),_T(""), OFN_READONLY| OFN_HIDEREADONLY| OFN_PATHMUSTEXIST| OFN_ALLOWMULTISELECT, _T("C Files (*.c)|*.c|(*.s)|*.s|(*.h)|*.h||")); LPSTR ptr = new char[50 * MAX_PATH]; memset(ptr,0,50*MAX_PATH); openDialog.m_ofn.lpstrFile = ptr; if(openDialog.DoModal()==IDOK) { POSITION ps; CString MultiFileName[MAX_PATH]; int FileNumber=0; ps=openDialog.GetStartPosition(); while(ps) { MultiFileName[FileNumber]=openDialog.GetNextPathName(ps); FileNumber++; } } delete []ptr; } but then also the problem did not got solved. openDialog.DoModal() is actually returning IDCANCEL when i select more than 12 files please help me it's very important for my project. Regards and thank's in advance Harshal shete Tag: VC++ .NET Excel SDK Tag: 262621
  - 18
    - Running applications in Background I want to make an application in C (windows ) using Visual c++ 6.0 which runs in background. What do i need to do for it. There is no user input in the application . Tag: VC++ .NET Excel SDK Tag: 262615
  - 19
    - Running applications in Background I want to make an application in C (windows ) using Visual c++ 6.0 which runs in background. What do i need to do for it. There is no user input in the application . Tag: VC++ .NET Excel SDK Tag: 262614
  - 20
    - Running applications in Background I want to make an application in C (windows ) using Visual c++ 6.0 which runs in background. What do i need to do for it. There is no user input in the application . Tag: VC++ .NET Excel SDK Tag: 262613
  - 21
    - CString memory allication question Hello there, I have a question on CStrings (the MFC class). When created from a character array, does the CString class free the memory of the array from which it was created automatically or does the caller have to to this? And if the later, can it be safely be done immediately after the construction of the CString? Here is an example. The question would be whether this code causes a memory leak or not. CString getSomeString() { TCHAR* test = new TCHAR[MAX_PATH]; _tcscpy(test, _T("myfile.txt")); return test; } void main() { while (true) { CString x = getSomeString(); } } Thanks in advance! Michael Tag: VC++ .NET Excel SDK Tag: 262612
  - 22
    - Can I change the toolbar icon dynamically ? Hi, I need to change icon of my toolbar dynamically. I mean as per the state of the application, i need to change the icon. Like, I have a button on toolbar for checking mails. And I also have autocheck functionality. Now, when application is checking the mails, i need to show stop icon over there (on the same place). And after finishing checking, i need to show the normal check icon at that position. Can anybody let me know how can I achieve this using MFC ?? Regards, Jigar Mehta Tag: VC++ .NET Excel SDK Tag: 262610
  - 23
    - char *pString question Hi folks, Easy one for the die-hard coders out there. I want to use a string in my program so I'm using a global (declared in the header file for my class) char *pString. So for example.. // In "MyClass.h" char *pString; In the .cpp file I wish to use this string i.e. assign it an intial value in the constructor such as - // In "MyClass.cpp" constructor pString = "Hello"; But, later on in the program I wish to reuse this same pointer to have different text. So for example, later on in the code I would like to make the string, for example, "Goodbye" such as - pString = "Goodbye"; Is there any harm in doing this? Thanks, David Tag: VC++ .NET Excel SDK Tag: 262606
  - 24
    - bug: access to protected base class The following (simple, stripped down) combination of classes yields a compilation error at //1 using Visual C++ 2005 Express Edition : class A { public: typedef int type; }; class B { public: typedef A A_type; }; class C : protected B { public: using B::A_type; }; void test(C const & c) { //1 typedef C::A_type::type type; //2 typedef C::A_type a_type; typedef a_type::type type_2; } int main() { C c; test(c); } However, //2 , which is simply //1 broken up into two statements, does not yield a compilation error. Comeau compiles the code without error, and I cannot see any access-rule-violation in the code (that is, I agree with Comeau). Can anyone reproduce the bug on other versions of Visual Studio? Can anyone with a direct link to the VS-team report the bug? regards, Thomas Tag: VC++ .NET Excel SDK Tag: 262600
  - 25
    - How to obtain the current highlighted folder of file? Hi everyone, I made a toolbar with a few buttons in Windows Explorer, and by clicking those buttons, I want take different actions on currently mouse selected folders or files. But so far I don't know how to set the function targeted on those folders and files, :( really need helps, have no clue how to do it... Sorry for my english... Millions of thanks Regards Michael Tag: VC++ .NET Excel SDK Tag: 262596

I'm finally making my way though reading an Excel file from VC++. The
problem I'm having now is when trying to execute the following code to
close a worksheet...

excelWorkbook->Close(__box(false),0,0);

I'm getting a System.NullReferenceException when running the code. I'm
wanting to close the workbook without Excel prompting to save changes.

Thanks for any help...John

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