Virtual Key Codes

[TpOreilly]

Ok then... Where are you telling me to put "return 0;"???

[VictorN]

Right after your processing code for VK_LEFT/VK_RIGHT of WM_KEYDOWN message.

[TpOreilly]

Thanks

The left and right arrow key is now working as it should, although when i press a key such as 'S' or any other key which I have not defined code for makes my icon move right.

[VictorN]

Show your actual code.

[TpOreilly]

case WM_KEYDOWN:

			switch(wParam)
			
				case VK_LEFT:
			{
					X -= 5;
					InvalidateRect(hWnd, NULL, TRUE);
					return 0;

					
					
			}
				case VK_RIGHT:
			{
					X += 5;
					InvalidateRect(hWnd, NULL, TRUE);
					return 0;
					
					
			}

			break;

[olivthill2]

Try:

case WM_KEYDOWN:
{
  switch(wParam) {
    case VK_LEFT:
        X -= 5;
        InvalidateRect(hWnd, NULL, TRUE);
        break;
    case VK_RIGHT:
        X += 5;
        InvalidateRect(hWnd, NULL, TRUE);
        break;
  }
}
return(0);
break;

Besides, the line, hInstance = LoadLibrary (TEXT("Application01.exe"));, is run every time a message arrives, which might occur several dozen of times per seconds. That line might take a lot of time and resources. I would advise you to load that library only in WM_CREATE, and declare hInstance as a static variable.

[Igor Vartanov]

Actually, GetModuleHandle(NULL) would be enough, as long as it is about getting main .exe instance handle.

[VladimirF]

Actually, GetModuleHandle(NULL) would be enough, as long as it is about getting main .exe instance handle.

If it is, the instance handle is passed into WinMain(), and is typically saved in a global variable.

[Igor Vartanov]

I'm almost sure it is, as nobody loads external .exe to the process.