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| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2019-04-30 09:21:44 +0200 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2019-05-07 18:32:12 +0000 |
| commit | 7c5c857679a0f58ca8fe5dcc9f8de3e3d83f0290 (patch) | |
| tree | 38ba47f72e1f6a0b32947a6f5e4c3d7908330834 /src/plugins | |
| parent | 83347e2d39dd967b6889977eddf77a18ff655ccc (diff) | |
Windows QPA: Fix over-large transparent tooltips
Setting transparency (WS_EX_LAYERED) causes a WM_PAINT to be sent to
the invisible windows, which causes a resize to the default size
(640x480) to be sent from QGuiApplicationPrivate::processExposeEvent().
Suppress these messages.
Fixes: QTBUG-75455
Change-Id: Idc540aa7f9bf0047e78ec7c27db260940483f7c4
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Diffstat (limited to 'src/plugins')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowswindow.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp index 0376e363f3..dc9aa0da23 100644 --- a/src/plugins/platforms/windows/qwindowswindow.cpp +++ b/src/plugins/platforms/windows/qwindowswindow.cpp @@ -1875,6 +1875,9 @@ bool QWindowsWindow::handleWmPaint(HWND hwnd, UINT message, { if (message == WM_ERASEBKGND) // Backing store - ignored. return true; + // QTBUG-75455: Suppress WM_PAINT sent to invisible windows when setting WS_EX_LAYERED + if (!window()->isVisible() && (GetWindowLong(hwnd, GWL_EXSTYLE) & WS_EX_LAYERED) != 0) + return false; // Ignore invalid update bounding rectangles RECT updateRect; if (!GetUpdateRect(m_data.hwnd, &updateRect, FALSE)) |