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authorOlivier Goffart <ogoffart@woboq.com>2017-02-22 17:06:23 +0100
committerOlivier Goffart (Woboq GmbH) <ogoffart@woboq.com>2017-03-29 13:36:03 +0000
commit886ce572d628e7cd98cc39edcc930ffae951e95e (patch)
tree67376063ad86f3c2b987a237c3c184d1cabe1aaf /src/plugins/platforms/windows/qwindowscontext.cpp
parent50ab231582fcef650eb1a800566907173bc67ef3 (diff)
Windows QPA: don't resize fixed sized windows when changing screen
This seems to give pretty good result when EnableHighDPIScaling is NOT set. But this seems to be worse when it's set. Task-number: QTBUG-58959 Change-Id: I8de5a6c3c8b6146b1cb8f89676463206af404083 Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Diffstat (limited to 'src/plugins/platforms/windows/qwindowscontext.cpp')
-rw-r--r--src/plugins/platforms/windows/qwindowscontext.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index b7a866679f..ff4ab1accb 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -1104,6 +1104,9 @@ bool QWindowsContext::windowsProc(HWND hwnd, UINT message,
#endif
} break;
case QtWindows::DpiChangedEvent: {
+ if (GetWindowLongPtr(hwnd, GWL_STYLE) & WS_DLGFRAME)
+ return false; // Fixed-size window should not be resized
+
platformWindow->setFlag(QWindowsWindow::WithinDpiChanged);
const RECT *prcNewWindow = reinterpret_cast<RECT *>(lParam);
SetWindowPos(hwnd, NULL, prcNewWindow->left, prcNewWindow->top,