USB摄像头图像采集VC源代码 void CVideoEXEDlg::OnDisplay() { typedef void (* DISPLAY)(HWND hWnd,BITMAPINFO m_InInfo,COMPVARS m_CV); HINSTANCE hInst; hInst = ::LoadLibrary ("VideoDLL.dll"); if(hInst==NULL) { AfxMessageBox("Fail to load MyVideo.dll"); } else { InitCompressor(); DISPLAY lpDisplay