I receive an old project developing with COM and C++, this project throw much exception for the INVALID_POINTER, I guess maybe the pointer is release, but then use this pointer. Is there anyway to check where the memory leak and where the pointer is released?

Hello everyone, I meet a crash problem. just as following, I donot know why IsWindow will crash, Is there anyone meet the same problem? AULTING_IP: user32!IsWindow+1a 761a7150 8365fc00 and dword ptr [ebp-4],0 EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff) ExceptionAddress: 761a7150 (user32!IsWindow+0x0000001a) ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 00000001 Parameter[1]: fffffffc Attempt to write to address fffffffc ChildEBP RetAddr Args to Child 06f9ff48 72d229bb 04e73a50 6928d287 00000000 user32!IsWindow+0x1a 06f9ff80 72d22a47 00000000 7710338a 04e74990 msvcr80!_callthreadstartex+0x1b [f:\sp\vctools\crt_bld\self_x86\crt\src\threadex.c @ 348] 06f9ff88 7710338a 04e74990 06f9ffd4 776b9f72 msvcr80!_threadstartex+0x66 [f:\sp\vctools\crt_bld\self_x86\crt\src\threadex.c @ 326] 06f9ff94 776b9f72 04e74990 70af11ab 00000000 kernel32!BaseThreadInitThunk+0xe 06f9ffd4 776b9f45 72d229e1 04e74990 00000000 ntdll!__RtlUserThreadStart+0x70 06f9ffec 00000000 72d229e1 04e74990 00000000 ntdll!_RtlUserThreadStart+0x1b

Because it is difficult and wastes time for modifying the controls position in xml file directly. Is anyone know how to design a good one as visual studio that cat drag and drop controls?

Yes, I donot know which windows api can do it.

No, this is changed the shortcut name. I means that display a number in the icon of the shortcut.

I find some application can show a number in the shutcut in the desktop , but I cannot find which windows api can do it. Is there anyone know it?

I had resolved this problem, Use EnumDisplayMonitors to judge which monitor the application is in. And then set the new maxmium position for the application.

It has two monitor, main and expand monitor. The expand monitor in the top with higher resolution ratio， and the main minitor in the bottom. But if I drag a window to the expand monitor and then double click to show maximium, it has problem, it cannot fill of the windows of the expand monitor? why ? It save the main monitor rectangle info, how to change it.

It needs to let the current process create a copy of process and then exit current process. I try to use the SetWindowPos(m_hWnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE) to set windows topmost, when first showup. So I kill the process in the taskmgr.exe and it will notify process to show a modal dialog to let user click, when click and then current process will create new process of itself and then exit current process. So a new process will showup, but I am amazing that why the topmost window is the taskmgr. But if I click the shortcut of this application, and it will show on the topmost. I donot know where is the difference between these ways.

Hi Superman, Perhaps this will meet the recursion problem. And this project only use the C++ not MFC, so if there anyways to use the GetTopWindow or GetLastActivePopup to judge if there is a modal window showing?

I have a application have hte trayIcon with a Close menu, and it needs keep identical with task bar right click menu. But if a Modal window shows, the application cannot be closed if uses [close] menu on the task bar, so I need to check if a modal window is showing, when user click the close menu on the tray icon.

When say the define of function memcpy, I say it. _CRT_INSECURE_DEPRECATE_MEMORY(memcpy_s) void * __cdecl memcpy(_Out_opt_bytecapcount_(_Size) void * _Dst, _In_opt_bytecount_(_Size) const void * _Src, _In_ size_t _Size); I say the file sal.h, it says that the macro will tell the compile what the usage about this function. but I do not know the compile will do any operation about this macro. If prompt any error when compiling?

Oh my God. If there have one hundred different size, I will create one hundred memory pool? :(

I need to optimize my stream player client, it will play 8 road stream in the same time. I think that if use the memory pool, it will help to reduce the usage of time about allocate memory. 30 frames every second, but H264 has I Frame P Frame. So different frames have different size. So the memory pool of boost is not suitable for my client system.

In a project, I use the CMainFrame* pMainFrame = new CMainFrame() to create a main frame. When the function CMainFrame::OnNcDestroy is called, void CView::PostNcDestroy() will be called. I donot know why CView::PostNcDestroy() will be called, in the function CFrameWnd::OnCreateClient() no new CView is created. Is there anyone know why? Thanks. :(

I need use the C++ to writer a memory pool to save the frame data, un-fixed size buffer. But I find that the Boost Pool only support allocate the same size memory once a time. So I want to achieve myself memory pool to support saving the not same size frame data. Is there some one meet the similiar problem ?

Oh, sorry, I do not use the .net. This is the unmanaged C++. I cannot see where the system delete this pointer in file appcore.cpp. :)

I have a client system, to create a CMainFrame object, but I am afraid that there will be memory leak about CMainFrame object.After step in, I cannot find where the m_pMainWnd pointer is deleted. Will I delete this pointer in the function ExitInstance()? :-D

BOOL CApp::InitInstance()
{
CMainFrame* pMainFrame = new CMainFrame();
if (!pMainFrame) return FALSE;
pMainFrame->LoadFrame(IDR_MAINFRAME,
WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, NULL,
NULL);
m_pMainWnd = pMainFrame;
m_pMainWnd->UpdateWindow();
return TRUE;
}

int CApp::ExitInstance()
{
return CWinApp::ExitInstance();
}

Thank you for you reply.

I use the VC++ 2008 to check this question. I define one function named "max2" using keyword "static" and one function named "min2" using keyword "inline". I think that the compiler will use the code inside the min2 function to replace the function called. And the max2 with static keyword will be compiled to be a function. But after the Deassembled in Debug model. I found that the exe both use the "call " assemble code to call these two functions. why does the inline not succeed?