字符叠加配置条件参数结构体。
struct{ DWORD dwSize; DWORD dwChannel; DWORD dwConfigMode; BYTE byPicModeType; BYTE byRelateType; BYTE byRes[14]; }NET_ITS_OVERLAPCFG_COND,*LPNET_ITS_OVERLAPCFG_COND;
NET_DVR_GetDeviceConfig NET_DVR_SetDeviceConfig