M src/platform/qt/Display.cpp → src/platform/qt/Display.cpp

@@ -64,6 +64,14 @@ QMetaObject::invokeMethod(m_painter, "forceDraw", Qt::QueuedConnection);
 	}
 }
 
+#ifdef USE_PNG
+void Display::screenshot() {
+	GBAThreadInterrupt(m_context);
+	GBAThreadTakeScreenshot(m_context);
+	GBAThreadContinue(m_context);
+}
+#endif
+
 void Display::initializeGL() {
 	glClearColor(0, 0, 0, 0);
 	glClear(GL_COLOR_BUFFER_BIT);

M src/platform/qt/Display.h → src/platform/qt/Display.h

@@ -20,6 +20,9 @@ public slots:
 	void startDrawing(const uint32_t* buffer, GBAThread* context);
 	void stopDrawing();
 	void forceDraw();
+#ifdef USE_PNG
+	void screenshot();
+#endif
 
 protected:
 	virtual void initializeGL() override;

M src/platform/qt/Window.cpp → src/platform/qt/Window.cpp

@@ -241,6 +241,16 @@ void Window::setupMenu(QMenuBar* menubar) {
 	menubar->clear();
 	QMenu* fileMenu = menubar->addMenu(tr("&File"));
 	fileMenu->addAction(tr("Load &ROM..."), this, SLOT(selectROM()), QKeySequence::Open);
+	fileMenu->addSeparator();
+
+#ifdef USE_PNG
+	QAction* screenshot = new QAction(tr("Take &screenshot"), fileMenu);
+	screenshot->setShortcut(tr("F12"));
+	connect(screenshot, SIGNAL(triggered()), m_display, SLOT(screenshot()));
+	m_gameActions.append(screenshot);
+	fileMenu->addAction(screenshot);
+#endif
+
 #ifndef Q_OS_MAC
 	fileMenu->addSeparator();
 	fileMenu->addAction(tr("E&xit"), this, SLOT(close()), QKeySequence::Quit);