UI: Add application audio capture to toolbar

UI/context-bar-controls.cpp

@@ -273,6 +273,26 @@ void WindowCaptureToolbar::Init()
 	ComboSelectToolbar::Init();
 }
 
+ApplicationAudioCaptureToolbar::ApplicationAudioCaptureToolbar(QWidget *parent,
+							       OBSSource source)
+	: ComboSelectToolbar(parent, source)
+{
+}
+
+void ApplicationAudioCaptureToolbar::Init()
+{
+	delete ui->activateButton;
+	ui->activateButton = nullptr;
+
+	obs_module_t *mod = obs_get_module("win-wasapi");
+	const char *device_str = obs_module_get_locale_text(mod, "Window");
+	ui->deviceLabel->setText(device_str);
+
+	prop_name = "window";
+
+	ComboSelectToolbar::Init();
+}
+
 DisplayCaptureToolbar::DisplayCaptureToolbar(QWidget *parent, OBSSource source)
 	: ComboSelectToolbar(parent, source)
 {

UI/context-bar-controls.hpp

@@ -82,6 +82,14 @@ public:
 	void Init() override;
 };
 
+class ApplicationAudioCaptureToolbar : public ComboSelectToolbar {
+	Q_OBJECT
+
+public:
+	ApplicationAudioCaptureToolbar(QWidget *parent, OBSSource source);
+	void Init() override;
+};
+
 class DisplayCaptureToolbar : public ComboSelectToolbar {
 	Q_OBJECT
 

UI/window-basic-main.cpp

@@ -3110,6 +3110,15 @@ void OBSBasic::UpdateContextBar(bool force)
 				c->Init();
 				ui->emptySpace->layout()->addWidget(c);
 
+			} else if (strcmp(id,
+					  "wasapi_process_output_capture") ==
+				   0) {
+				ApplicationAudioCaptureToolbar *c =
+					new ApplicationAudioCaptureToolbar(
+						ui->emptySpace, source);
+				c->Init();
+				ui->emptySpace->layout()->addWidget(c);
+
 			} else if (strcmp(id, "window_capture") == 0 ||
 				   strcmp(id, "xcomposite_input") == 0) {
 				WindowCaptureToolbar *c =