Ctrl+A (Select All) with edit controls without ES_MULTILINE

gistfile1.c

LRESULT CALLBACK EditWindowProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message) {
		case WM_KEYDOWN:
			switch(wParam) {
				case 'A': // Ctrl+A = select all
					if(GetKeyState(VK_CONTROL) & 0x8000) {
						SendMessage(hWnd, EM_SETSEL, 0, -1);
					}
					break;
			}
	}

	return CallWindowProc(EditPrevWndProc, hWnd, message, wParam, lParam);
}

...

EditPrevWndProc = reinterpret_cast<WNDPROC>(SetWindowLong(hEdit, GWL_WNDPROC, reinterpret_cast<LONG>(&EditWindowProc)));

// EditPrevWndProc is a global variable, is the same for all edit controls...