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s32Ret = HI_SDK_RealPlayExt(lHandle, m_ScreenPannel.m_PlayWnd[u32Chn].GetSafeHwnd(), &struStreamInfo);
//其中的m_ScreenPannel和m_PlayWnd[u32Chn]:
class CSDKDemoDlg : public CDialog{
//...
CScreenPannel m_ScreenPannel;
//...
}
class CScreenPannel : public CWnd{
//...
CPlayWnd m_PlayWnd[25];//ScreenPannel.h里面的
//...
}
[DllImportAttribute("HISDK.dll", EntryPoint = "HI_SDK_RealPlayExt", CallingConvention = CallingConvention.StdCall)]
public static extern int HI_SDK_RealPlayExt(long lHandle, IntPtr pWnd, ref HI_S_STREAM_INFO_EXT pstruStreamInfo);
s32Ret = HI_SDK_RealPlayExt(lHandle, Pannel1.Handle, ref struStreamInfo);