PNG writer

apps/LoopThroughWithOpenGLCompositing/control/ControlServer.cpp

@@ -433,6 +433,11 @@ bool ControlServer::InvokePostRoute(const std::string& path, const JsonValue& ro
 			{
 				return mCallbacks.reloadShader && mCallbacks.reloadShader(error);
 			}
+		},
+		{ "/api/screenshot", [this](const JsonValue&, std::string& error)
+			{
+				return mCallbacks.requestScreenshot && mCallbacks.requestScreenshot(error);
+			}
 		}
 	};
 

apps/LoopThroughWithOpenGLCompositing/control/ControlServer.h

@@ -32,6 +32,7 @@ public:
 		std::function<bool(const std::string&, std::string&)> saveStackPreset;
 		std::function<bool(const std::string&, std::string&)> loadStackPreset;
 		std::function<bool(std::string&)> reloadShader;
+		std::function<bool(std::string&)> requestScreenshot;
 	};
 
 	ControlServer();

apps/LoopThroughWithOpenGLCompositing/control/RuntimeControlBridge.cpp

@@ -26,6 +26,7 @@ bool StartRuntimeControlServices(
 	callbacks.resetLayerParameters = [&composite](const std::string& layerId, std::string& actionError) { return composite.ResetLayerParameters(layerId, actionError); };
 	callbacks.saveStackPreset = [&composite](const std::string& presetName, std::string& actionError) { return composite.SaveStackPreset(presetName, actionError); };
 	callbacks.loadStackPreset = [&composite](const std::string& presetName, std::string& actionError) { return composite.LoadStackPreset(presetName, actionError); };
+	callbacks.requestScreenshot = [&composite](std::string& actionError) { return composite.RequestScreenshot(actionError); };
 	callbacks.reloadShader = [&composite](std::string& actionError) {
 		if (!composite.ReloadShader())
 		{