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Windows QPA: Fix missing resize when changing the scale factor

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Do not suppress the resize event caused by the handling of
WM_DPICHANGED unless the screen really changed.

Fixes: QTBUG-76510
Change-Id: I8b9ae41ad7deb863c1633ec5901bc04304b2165c
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This commit is contained in:
Friedemann Kleint 2019-09-12 08:54:58 +02:00
parent 447ee95d5e
commit 2dd781df87
1 changed files with 4 additions and 2 deletions
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6
src/plugins/platforms/windows/qwindowswindow.cpp
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@ -1897,8 +1897,10 @@ void QWindowsWindow::handleGeometryChange()
{
const QRect previousGeometry = m_data.geometry;
m_data.geometry = geometry_sys();
if (testFlag(WithinDpiChanged))
return; // QGuiApplication will send resize
if (testFlag(WithinDpiChanged)
&& QWindowsContext::instance()->screenManager().screenForHwnd(m_data.hwnd) != screen()) {
return; // QGuiApplication will send resize when screen actually changes
}
QWindowSystemInterface::handleGeometryChange(window(), m_data.geometry);
// QTBUG-32121: OpenGL/normal windows (with exception of ANGLE) do not receive
// expose events when shrinking, synthesize.