Add toggle for system key capture

app/gui/SettingsView.qml

@@ -837,6 +837,25 @@ Flickable {
                                   qsTr("NOTE: Due to a bug in GeForce Experience, this option may not work properly if your host PC has multiple monitors.")
                 }
 
+                CheckBox {
+                    id: captureSysKeysCheck
+                    hoverEnabled: true
+                    width: parent.width
+                    text: qsTr("Capture system keyboard shortcuts while streaming in fullscreen mode")
+                    font.pointSize:  12
+                    enabled: SystemProperties.hasWindowManager
+                    checked: StreamingPreferences.captureSysKeys && SystemProperties.hasWindowManager
+                    onCheckedChanged: {
+                        StreamingPreferences.captureSysKeys = checked
+                    }
+
+                    ToolTip.delay: 1000
+                    ToolTip.timeout: 10000
+                    ToolTip.visible: hovered
+                    ToolTip.text: qsTr("This enables the capture of system-wide keyboard shortcuts like Alt+Tab that would normally be handled by the client OS while streaming in fullscreen.") + "\n\n" +
+                                  qsTr("NOTE: Certain keyboard shortcuts like Ctrl+Alt+Del on Windows cannot be intercepted by any application, including Moonlight.")
+                }
+
                 CheckBox {
                     id: absoluteTouchCheck
                     hoverEnabled: true