基于Delphi的VFW视频捕获程序的开发

Emploiting the Program Capturing Video by VFW Based on Delphi

许多关于视频的软件 (如视频会议、可视电话等 )开发都应用了视频捕获技术。微软为软件开发人员提供了一个专门用于视频捕获的VFWSDK,从而为在Windows系统中实现视频捕获提供了标准的接口 ,并大大降低了程序的开发难度。由于VFWSDK只有VC和VB版 ,没有Delphi版 ,因此需要在Delphi中一一声明DLL中的各个函数和变量。文中详细介绍了如何利用VFW在Delphi中开发视频捕获程序的步骤 ,同时给出了程序实例。

The technique capturing video can be used in some exploitation about video program,for example videomeeting,visual telephone,etc.MicrosoftsuppliesVFWSDKbeingusedtocapture videoforsoftware exploitaˉtion personnel.The VFW SDK provides normative interface to capture video in Windows System as to reduce the difficulties of software exploiture.The VFW SDKhas VC and VB edition,but no Delphi's,so it would be eˉquired to declare DLL's functions and vars in Delphi.Howto capture video by VFW in Delphi is introduced as well.