From 867b11596be8bb5864650f98698d1015c4f26812 Mon Sep 17 00:00:00 2001 From: Friedemann Kleint Date: Thu, 7 Jan 2021 15:16:31 +0100 Subject: Windows QPA: Fix missing QScreen change updates Remove the logic compressing WM_DISPLAYCHANGE signals by the WParam/LParam since it also triggers when the geometry is changed by rearranging screens. Fixes: QTBUG-79442 Change-Id: I00042c9e687bdb67fc17d6c507818b79a7aee0a2 Reviewed-by: Oliver Wolff --- src/plugins/platforms/windows/qwindowsscreen.cpp | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'src/plugins/platforms/windows/qwindowsscreen.cpp') diff --git a/src/plugins/platforms/windows/qwindowsscreen.cpp b/src/plugins/platforms/windows/qwindowsscreen.cpp index cddc384418..19557bfcd0 100644 --- a/src/plugins/platforms/windows/qwindowsscreen.cpp +++ b/src/plugins/platforms/windows/qwindowsscreen.cpp @@ -537,30 +537,6 @@ bool QWindowsScreenManager::isSingleScreen() return QWindowsContext::instance()->screenManager().screens().size() < 2; } -/*! - \brief Triggers synchronization of screens (WM_DISPLAYCHANGE). - - Subsequent events are compressed since WM_DISPLAYCHANGE is sent to - each top level window. -*/ - -bool QWindowsScreenManager::handleDisplayChange(WPARAM wParam, LPARAM lParam) -{ - const int newDepth = int(wParam); - const WORD newHorizontalResolution = LOWORD(lParam); - const WORD newVerticalResolution = HIWORD(lParam); - if (newDepth != m_lastDepth || newHorizontalResolution != m_lastHorizontalResolution - || newVerticalResolution != m_lastVerticalResolution) { - m_lastDepth = newDepth; - m_lastHorizontalResolution = newHorizontalResolution; - m_lastVerticalResolution = newVerticalResolution; - qCDebug(lcQpaWindows) << __FUNCTION__ << "Depth=" << newDepth - << ", resolution " << newHorizontalResolution << 'x' << newVerticalResolution; - handleScreenChanges(); - } - return false; -} - static inline int indexOfMonitor(const QWindowsScreenManager::WindowsScreenList &screens, const QString &monitorName) { -- cgit v1.2.3