TaskDialogCallbackProc typedef Null safety

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

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

Implementation

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