通过usb端口，对所接到的usb视频设备进行联接，并 对图像进行取得并录像录音-Through the usb port, usb on the received video devices connected, and to obtain images and video recording

EWDraw 3D is a powerful vector graphics ActiveX for 3D and 2D visualisation and animation. You can use it for CAD,CAM,GIS and others. The EWDraw is based on Open CASCADE geometric kernel and openGL. The component is realized as a run-time Windows 3

example preview on delphi

I developed this screen cam component with delphi (captures the activity on a screen or delphi form and writes it into an AVI file; it supports all compressors; the program contains code derived from RenderSoft CamStudio 1.0 OPENSOURCE). Thanks,