Hi, starting from the example “PlayCap with frame grabber”,
I am trying to intercept the mouse click on the live stream of the camera. How can I do this?
The example uses a Canvas to show picture. So you could add a mouseDown event to the canvas on Window1.
Hi Christian.
I tryed that. the preview of the video is like “superimposed” on the canvas, therefore the click is not intercepted.
Maybe the problem is here?
vw.WindowStyle = BitwiseOr(vw.WS_CHILD, vw.WS_CLIPCHILDREN) 'Set video window style
And if you drop another canvas over the canvas used to host the view?
I just tryed that also. Don’t work. Because the sequence of images, really, is not showed in Canvas, but in a window overlayed on the canvas. So, if you add a second Canvas or Rectangle, that window is always on the control… 
Did you assign messageDrain property for the video window?
This tells it where to send mouse and keyboard events.
We’ll also add properties to assign owner and messageDrain with a control instead of a window.
yes! messageDrain was the solution! 
thanks
Great. You can later change code to use our new Control properties and position it relative to canvas instead of the window.
I solved using a different hidden window, with a reference to my Canvas 