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-rw-r--r--src/plugins/platforms/windows/qwindowsbackingstore.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/platforms/windows/qwindowsbackingstore.cpp b/src/plugins/platforms/windows/qwindowsbackingstore.cpp
index 0a7ff61b7b..b40aefa225 100644
--- a/src/plugins/platforms/windows/qwindowsbackingstore.cpp
+++ b/src/plugins/platforms/windows/qwindowsbackingstore.cpp
@@ -88,7 +88,8 @@ void QWindowsBackingStore::flush(QWindow *window, const QRegion &region,
QWindowsWindow *rw = QWindowsWindow::baseWindowOf(window);
#ifndef Q_OS_WINCE
- if (QWindowsWindow::setWindowLayered(rw->handle(), window->flags(), rw->format().hasAlpha(), rw->opacity())) {
+ const Qt::WindowFlags flags = window->flags();
+ if ((flags & Qt::FramelessWindowHint) && QWindowsWindow::setWindowLayered(rw->handle(), flags, rw->format().hasAlpha(), rw->opacity())) {
QRect r = window->frameGeometry();
QPoint frameOffset(window->frameMargins().left(), window->frameMargins().top());
QRect dirtyRect = br.translated(offset + frameOffset);
@@ -97,7 +98,6 @@ void QWindowsBackingStore::flush(QWindow *window, const QRegion &region,
POINT ptDst = {r.x(), r.y()};
POINT ptSrc = {0, 0};
BLENDFUNCTION blend = {AC_SRC_OVER, 0, (BYTE)(255.0 * rw->opacity()), AC_SRC_ALPHA};
-
if (QWindowsContext::user32dll.updateLayeredWindowIndirect) {
RECT dirty = {dirtyRect.x(), dirtyRect.y(),
dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};