diff options
| -rw-r--r-- | views/widget/widget_win.cc | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/views/widget/widget_win.cc b/views/widget/widget_win.cc index 56702e7..4fa77a8 100644 --- a/views/widget/widget_win.cc +++ b/views/widget/widget_win.cc @@ -290,16 +290,19 @@ void WidgetWin::PaintNow(const gfx::Rect& update_rect) { } else { // Paint child windows that are in a different process asynchronously. // This prevents a hang in other processes from blocking this process. - ::RedrawWindow(hwnd_, &update_rect.ToRECT(), NULL, - RDW_INVALIDATE | RDW_UPDATENOW | RDW_NOCHILDREN); - // Send the invalid rect in screen coordinates. + // Calculate the invalid rect in screen coordinates before the first + // RedrawWindow call to the parent HWND, since that will empty update_rect + // (which comes from a member variable) in the OnPaint call. CRect screen_rect_temp; GetWindowRect(&screen_rect_temp); gfx::Rect screen_rect(screen_rect_temp); gfx::Rect invalid_screen_rect = update_rect; invalid_screen_rect.Offset(screen_rect.x(), screen_rect.y()); + ::RedrawWindow(hwnd_, &update_rect.ToRECT(), NULL, + RDW_INVALIDATE | RDW_UPDATENOW | RDW_NOCHILDREN); + LPARAM lparam = reinterpret_cast<LPARAM>(&invalid_screen_rect); EnumChildWindows(hwnd_, EnumChildProcForRedraw, lparam); } |