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Ref T346, framless window “UpdateLayeredWindowIndirect failed” error preparations

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This commit is contained in:
Klaus Basan
2018-09-10 13:36:28 +02:00
parent d2d27a8eac
commit 97cf9f4939
4 changed files with 60 additions and 15 deletions
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30
src/blackgui/enableforframelesswindow.cpp
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@@ -28,6 +28,7 @@
#include <QThread>
#include <QVariant>
#include <QWidget>
#include <QMainWindow>
#include <QtGlobal>
using namespace BlackMisc;
@@ -86,24 +87,27 @@ namespace BlackGui
CEnableForFramelessWindow::WindowMode CEnableForFramelessWindow::stringToWindowMode(const QString &s)
{
QString ws(s.trimmed().toLower());
const QString ws(s.trimmed().toLower());
if (ws.isEmpty()) { return WindowNormal; }
if (ws.contains("frameless") || ws.startsWith("f")) { return WindowFrameless; }
if (ws.contains("tool") || ws.startsWith("t")) { return WindowTool; }
return WindowNormal;
}
QString CEnableForFramelessWindow::windowModeToString(CEnableForFramelessWindow::WindowMode m)
const QString &CEnableForFramelessWindow::windowModeToString(CEnableForFramelessWindow::WindowMode m)
{
static const QString n("normal");
static const QString f("frameless");
static const QString t("tool");
switch (m)
{
case WindowFrameless: return "frameless";
case WindowNormal: return "normal";
case WindowTool: return "tool";
default:
break;
case WindowFrameless: return f;
case WindowNormal: return n;
case WindowTool: return t;
default: break;
}
return "normal";
return n;
}
void CEnableForFramelessWindow::windowFlagsChanged()
@@ -117,13 +121,15 @@ namespace BlackGui
Q_ASSERT_X(!m_framelessPropertyName.isEmpty(), "CEnableForFramelessWindow::setWindowAttributes", "Missing property name");
bool frameless = (mode == WindowFrameless);
// http://stackoverflow.com/questions/18316710/frameless-and-transparent-window-qt5
m_widget->setAttribute(Qt::WA_NoSystemBackground, frameless);
// http://stackoverflow.com/questions/18316710/frameless-and-transparent-window-qt5
// https://bugreports.qt.io/browse/QTBUG-52206
if (CGuiUtility::isTopLevelWidget(m_widget))
// UpdateLayeredWindowIndirect failed for ptDst
if (m_isMainApplicationWindow && CGuiUtility::isTopLevelWindow(m_widget))
{
m_widget->setAttribute(Qt::WA_TranslucentBackground, frameless);
m_widget->setAttribute(Qt::WA_NativeWindow);
m_widget->setAttribute(Qt::WA_NoSystemBackground, frameless);
m_widget->setAttribute(Qt::WA_TranslucentBackground, frameless); // causing QTBUG-52206
}
// Qt::WA_PaintOnScreen leads to a warning