RedrawWindow function Null safety user32

int RedrawWindow(
  1. int hWnd,
  2. Pointer<RECT> lprcUpdate,
  3. int hrgnUpdate,
  4. int flags

The RedrawWindow function updates the specified rectangle or region in a window's client area.

BOOL RedrawWindow(
  HWND       hWnd,
  const RECT *lprcUpdate,
  HRGN       hrgnUpdate,
  UINT       flags


int RedrawWindow(
        int hWnd, Pointer<RECT> lprcUpdate, int hrgnUpdate, int flags) =>
    _RedrawWindow(hWnd, lprcUpdate, hrgnUpdate, flags);