From 9137691e745039f8ad9cdee2594a958e244ba341 Mon Sep 17 00:00:00 2001 From: Friedemann Kleint Date: Mon, 5 Nov 2018 10:18:50 +0100 Subject: [PATCH] Windows QPA: Fix crash showing QSystemTrayIcon's context menu with PROCESS_DPI_UNAWARE The coordinates of the WM_CONTEXT message may be out of any screen in PROCESS_DPI_UNAWARE mode since hi-res coordinates are delivered in this case (Windows issue). Default to primary screen with check to prevent a crash. Fixes: QTBUG-67966 Change-Id: I1950360520e93cbf3509611b3057635769f6543a Reviewed-by: Andre de la Rocha --- .../windows/qwindowssystemtrayicon.cpp | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/src/plugins/platforms/windows/qwindowssystemtrayicon.cpp b/src/plugins/platforms/windows/qwindowssystemtrayicon.cpp index 901d132ea5..3c27f2914d 100644 --- a/src/plugins/platforms/windows/qwindowssystemtrayicon.cpp +++ b/src/plugins/platforms/windows/qwindowssystemtrayicon.cpp @@ -382,12 +382,20 @@ bool QWindowsSystemTrayIcon::winEvent(const MSG &message, long *result) emit activated(DoubleClick); // release we must ignore it break; case WM_CONTEXTMENU: { + // QTBUG-67966: Coordinates may be out of any screen in PROCESS_DPI_UNAWARE mode + // since hi-res coordinates are delivered in this case (Windows issue). + // Default to primary screen with check to prevent a crash. const QPoint globalPos = QPoint(GET_X_LPARAM(message.wParam), GET_Y_LPARAM(message.wParam)); - const QPlatformScreen *screen = QWindowsContext::instance()->screenManager().screenAtDp(globalPos); - emit contextMenuRequested(globalPos, screen); - emit activated(Context); - if (m_menu) - m_menu->trackPopupMenu(message.hwnd, globalPos.x(), globalPos.y()); + const auto &screenManager = QWindowsContext::instance()->screenManager(); + const QPlatformScreen *screen = screenManager.screenAtDp(globalPos); + if (!screen) + screen = screenManager.screens().value(0); + if (screen) { + emit contextMenuRequested(globalPos, screen); + emit activated(Context); + if (m_menu) + m_menu->trackPopupMenu(message.hwnd, globalPos.x(), globalPos.y()); + } } break; case NIN_BALLOONUSERCLICK: