WinApi, hide cursor inside window client area

Question

I want hide cursor inside window client area without borders and title bar (it is simple opengl application). So, function

    ShowCursor(FALSE);

is not suitable. After some searching the winapi i find this solution:

    //when create window class for application window
    WNDCLASSEX WndClass;
    //...
    BYTE CursorMaskAND[] = { 0xFF };
    BYTE CursorMaskXOR[] = { 0x00 };
    WndClass.hCursor = CreateCursor(NULL, 0,0,1,1, CursorMaskAND, CursorMaskXOR);

Is this a good way to solve this typical task? What way is the best?

Answer 1

MSDN says that you can set the WNDCLASSEX hCursor field to NULL, in which case you must explicitly set the cursor in your window procedure (which means handling the WM_SETCURSOR message). For example:

if (Msg == WM_SETCURSOR && LOWORD(lParam) == HTCLIENT)
{
    SetCursor(NULL);

    return TRUE;
}

// Remainder of window procedure code

Checking for HTCLIENT ensures that the cursor is only hidden in the client area, and that the window frame and caption will use the correct cursors.