void cef_dark_aero_window::DrawMenuBar(HDC hdc)
{
RECT rectWindow ;
ComputeLogicalWindowRect (rectWindow) ;
::ExcludeClipRect (hdc, rectWindow.left, rectWindow.top, rectWindow.right, rectWindow.bottom);
RECT rectRequired;
ComputeRequiredMenuRect(rectRequired);
// No menu == nothing to draw
if (::RectHeight(rectRequired) > 0) {
RECT rectMenu;
ComputeMenuBarRect(rectMenu);
HRGN hrgnUpdate = ::CreateRectRgnIndirect(&rectMenu);
if (::SelectClipRgn(hdc, hrgnUpdate) != NULLREGION) {
DoDrawFrame(hdc); // Draw menu bar background
DoDrawMenuBar(hdc); // DraW menu items
}
::DeleteObject(hrgnUpdate);
}
}
// Paints the entire non-client area.
// Creates an in-memory DC to draw on to reduce flicker
void cef_dark_window::DoPaintNonClientArea(HDC hdc)
{
EnforceMenuBackground();
HDC hdcOrig = hdc;
RECT rectWindow;
GetWindowRect(&rectWindow);
int Width = ::RectWidth(rectWindow);
int Height = ::RectHeight(rectWindow);
HDC dcMem = ::CreateCompatibleDC(hdc);
HBITMAP bm = ::CreateCompatibleBitmap(hdc, Width, Height);
HGDIOBJ bmOld = ::SelectObject(dcMem, bm);
hdc = dcMem;
InitDeviceContext(hdc);
InitDeviceContext(hdcOrig);
DoDrawFrame(hdc);
DoDrawSystemMenuIcon(hdc);
DoDrawTitlebarText(hdc);
DoDrawSystemIcons(hdc);
DoDrawMenuBar(hdc);
::BitBlt(hdcOrig, 0, 0, Width, Height, dcMem, 0, 0, SRCCOPY);
::SelectObject(dcMem, bmOld);
::DeleteObject(bm);
::DeleteDC(dcMem);
}
