TaskDialogCallbackProc typedef Null safety

IntPtr TaskDialogCallbackProc(
  1. IntPtr hwnd,
  2. Uint32 uMsg,
  3. IntPtr wParam,
  4. IntPtr lParam,
  5. IntPtr lpRefData

Application-defined callback function used with the TaskDialogIndirect function. It receives messages from the task dialog when various events occur.


typedef TaskDialogCallbackProc = IntPtr Function(
    IntPtr hwnd, Uint32 uMsg, IntPtr wParam, IntPtr lParam, IntPtr lpRefData);