HIKVISION DS-4 Series - 4.2.5. ChannelClose(); 4.2.6. GetTotalChannels(); 4.2.7. GetTotalDSPs(); 4.2.8. GetBoardCount()

Technical Manual
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4.2.5. int ChannelClose(int channelHandle) ;
Parameter:
int channelHandle channel handle;
Explanation:
Close channel and release correlative resource;
Return value:
0—success; -1 – failed;
4.2.6. int GetTotalChannels();
Explanation:
Get total valid channel number in system.
Return value:
If return value is less than the number of channels installed in system, it is means those
initializations of DSP are failed.
4.2.7. int GetTotalDSPs();
Explanation:
Get the number of DSP in system.
Return value:
If return value is less than the number of DSP installed system, it is means those some
initializations of DSP are failed.
4.2.8. int GetBoardCount()
Explanation:
Get the number of card in system.
Return value:
The number of the cards
4.2.9. int GetBoardDetail (UINT boardNum,DS_BOARD_DETAIL *pBoardDetail)
Parameter:
UINT boardNum the index of the board
DS_BOARD_DETAIL *pBoardDetail the info of the board
typedef struct
{
BOARD_TYPE_DS type; //the type of the board
BYTE sn[16]; //the serial number
UINT dspCount; //the DSP count in the board
UINT firstDspIndex; //the index of the first DSP
UINT encodeChannelCount; //the encode channel count in the board
UINT firstEncodeChannelIndex; //index of first encode channel
UINT decodeChannelCount; //the decode channel count in the board
UINT firstDecodeChannelIndex; //the index for the first decoding channel
UINT displayChannelCount; //the display channel count