How to know if SceneCapture2D has a new frame

Greetings! I extended the SceneCaptureComponent2D class in C++. I need to process the TextureTarget and need to know when the TextureTarget is being refreshed (new captured frame). Can anybody point me to the right direction?

Details:
In my character’s BP, I added a C++ class extending the SceneCaptureComponent2D. The class is basically empty right now. In the same character’s BP, I created a plane where I attached a dynamic material and then load a texture. This texture should be the “processed TextureTarget” from the SceneCaptureComponent2D. All I need to know is when the SceneCaptureComponent2D draws the TextureTarget. Is there an Event that is triggered when this is done?