Here is one solution from MSDN. http://support.microsoft.com/defaul...&NoWebContent=1 Kuphryn

Thank for your help. I solved my problem: MyProc was always returning 0 whatever the message was, whereas it has to treat Windows messages such as "WM_CREATE", ... (traditional messages to create a window). Now, I use "return DefWindowProc(_hWnd,_iMsg,_wParam,_lParam)" when I receive a Windows message different from my messages.

Can you describe situation with more details? :confused: For what purpose you want to check is mutex belong to given process? Maybe you can create a table of pair mutex-PID in shared memory and when needed check is mutex belong to Process. (??? MapViewOfFile function can help with memory sharing ???)

Hi, this code will resolve your problem. HANDLE m_hMutex = NULL; // Create the mutex m_hMutex = CreateMutex( NULL, FALSE, "Process.exe" ); // Check for errors if ( GetLastError() == ERROR_ALREADY_EXISTS ) { // Reset our mutext handle (just in case) m_hMutex = NULL; MessageBox(NULL,"Can't run the application twice!!!.","Task manager:",MB_OK); exit(0); } Aizik Yair Software Engineer

You should use CWnd::GetScrollInfo instead of parameters passed to WM_VSCROLL. GetScrollInfo supports 32-bit ranges and positions. Tomasz Sowinski -- http://www.shooltz.com

Use SHFileOperation or CopyFile. Tomasz Sowinski -- http://www.shooltz.com.pl

Knowledge Base article Q178893 - "HOWTO: Terminate an Application 'Cleanly' in Win32" - deals with these issues. Basically, you should call WaitForSingleObject after posting WM_CLOSE. You can find the article online: http://support.microsoft.com/support/kb/articles/Q178/8/93.ASP Cheers Tomasz Sowinski http://www.shooltz.com.pl

in an MDI or SDI in BEGIN_AFX_MESSAGE jus add this two lines and set the ID of the following menu button ON_COMMAND(ID_FILE_SEND_MAIL, OnFileSendMail) ON_UPDATE_COMMAND_UI(ID_FILE_SEND_MAIL, OnUpdateFileSendMail):) :) BLaZe

i use: extern "C" int __declspec(dllexport) __stdcall FuncName(param 1, param 2,etc) the "int" is the data type returned from the function works for me :) "every year we invent better idiot proof systems and every year they invent better idiots"

If you can't get the notification - and I can't think of it at the moment, you can poll for the termination of the application using GetExitCodeProcess(). This will either tell you the process is still alive, or give you its exit code. Not ideal, but a start. Stepehn Kellett

i afraid with system tree ctrl you have to change them to spaces before you set item's text t!