UpdateWindow (Compact 2013)

  • Article

3/28/2014

This function updates the client area of the specified window by sending a WM_PAINT message to the window if the window's update region is not empty.

UpdateWindow sends a WM_PAINT message directly to the window procedure of the specified window, bypassing the application queue.

If the update region is empty, no message is sent.

Syntax

BOOL UpdateWindow( 
  HWND hWnd
);

Parameters

  • hWnd
    Handle to the window to be updated.

Return Value

Nonzero indicates success.

Zero indicates failure.

To get extended error information, call GetLastError.

Requirements

Header

winuser.h

Library

coredll.lib,
Winmgr.lib

See Also

Reference

GDI Functions
GetUpdateRect
GetUpdateRgn
InvalidateRect
WM_PAINT