Windows Application.
1. display the live video from usb camera(preview) in a window
2. draw a graphic(e.g cross cursor) and overlap the graphic on the video
3. support windows XP and window 7
4. using VB or C# or VC++
简单Windows 应用程序
在窗口中显示USB摄像头的活动图像。
在图像上中央叠加图形如一个十字光标
支持 Windows XP and Windows 7
可使用VB, C# or VC++