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Repaint the non-client area to work around broken WM_PAINT handlers 

also when doing a synchronous update with RDW_UPDATENOW.
This commit is contained in:
Alexandre Julliard 2005-02-24 19:42:08 +00:00
parent db69dcb5c1
commit 0e0f62f2fa
1 changed files with 18 additions and 2 deletions
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20
dlls/user/painting.c
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@ -326,7 +326,7 @@ static void erase_now( HWND hwnd, UINT rdw_flags )
*/
static void update_now( HWND hwnd, UINT rdw_flags )
{
HWND child;
HWND prev = 0, child;
/* desktop window never gets WM_PAINT, only WM_ERASEBKGND */
if (hwnd == GetDesktopWindow()) erase_now( hwnd, rdw_flags | RDW_NOCHILDREN );
@ -342,8 +342,24 @@ static void update_now( HWND hwnd, UINT rdw_flags )
if (!get_update_flags( hwnd, &child, &flags )) break;
if (!flags) break; /* nothing more to do */
SendMessageW( child, WM_PAINT, 0, 0 );
if (child == prev) /* same window again, didn't get repainted properly */
{
UINT erase_flags = UPDATE_NONCLIENT | UPDATE_ERASE | UPDATE_NOCHILDREN;
HRGN hrgn;
RECT rect;
TRACE( "%p not repainted properly, erasing\n", child );
if ((hrgn = send_ncpaint( child, NULL, &erase_flags )))
{
send_erase( child, erase_flags, hrgn, &rect, NULL );
DeleteObject( hrgn );
}
}
else
{
prev = child;
SendMessageW( child, WM_PAINT, 0, 0 );
}
if (rdw_flags & RDW_NOCHILDREN) break;
}
}