Show big black background in Camera

[xugangbbs]

if i use CameraControl, it is not show a big black background in the video's top and bottom. but if i use Camera in the picturebox, it's show a big black background in the video's top and bottom.
why? I can't find some setting in the CameraControl.

[free5lot]

Probably when you use PictureBox - it has bigger height, so you get extra black fields (because library preserves the correct aspect ration. Try to change the picture height to the video resolution's height and there will be no need to add black parts.
And I would recommend to use CameraControl anyway, it's more convenient.