C / C++ / MFC

CreateMutex(...)<br />
OpenMutex(...)<br />
ReleaseMutex(...)

suezzz00 wrote:

I suspect that the event that is created is not an OS event , but rather local to the running application.

HANDLE h = CreateEvent(NULL, FALSE, FALSE, "TestEvent");
WaitForSingleObject(h, 5000);
cout << "past event";

[DllImport("kernel32.dll")]
static extern bool SetEvent(IntPtr hEvent);

[DllImport("Kernel32.dll", SetLastError=true)]
static extern IntPtr OpenEvent(uint dwDesiredAccess, bool bInheritHandle, string lpName);

IntPtr handle = OpenEvent(0x000F0000 | 0x00100000 | 0x3, false, "TestEvent"); // First parameter is EVENT_ALL_ACCESS
SetEvent(handle);

Ann66 wrote:

I want to use LineTo(), but each time do I have to store the previous mouse point into a global variable as the starting point for lineto().

GetModuleFileName(NULL,m_CurrentPath.GetBuffer(512),512);<br />
m_CurrentPath.ReleaseBuffer();<br />
m_CurrentPath.Delete(m_CurrentPath.ReverseFind('\\'),m_CurrentPath.GetLength()-m_CurrentPath.ReverseFind('\\'));

Ghasrfakhri wrote:

You can extract Path easily, Like

toxcct wrote:

PathRemoveFileSpec() exists...and calling it will only slow your prgram down...

"Take only what you need and leave the land as you found it." - Native American Proverb

Giorgi Moniava wrote:

Like GetModuleFilename() API , - but it returns the fullpath , including the filename.

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

conceptus wrote:

Any idea what are the possible causes?

"Take only what you need and leave the land as you found it." - Native American Proverb

"Take only what you need and leave the land as you found it." - Native American Proverb

LRESULT CALLBACK WindowProc(...)
{
    switch (uMessage)
    {
        case WM_DROPFILES:
            HDROP hDrop = (HDROP) wParam;
            char szDropName[MAX_PATH];
            DragQueryFile(hDrop, 0, szDropName, sizeof(szDropName));
            break;
        default:
            return DefWindowProc(hWnd, uMessage, wParam, lParam);
    }
 
    return 0;
}

"Take only what you need and leave the land as you found it." - Native American Proverb