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NET_SDK_QueryNodeList

Interface Definition

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BOOL NET_SDK_QueryNodeList(
    LONG lUserID,
    const NET_SDK_NODE_PARAM queryParam,
    char* outNodesBuffer,
    unsigned int outNodesBufferSize,
    unsigned int* outFilledSize);

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public static extern Boolean NET_SDK_QueryNodeList(
    Int32 lUserID,
    in NET_SDK_NODE_PARAM queryParam,
    IntPtr outNodesBuffer,
    in UInt32 outNodesBufferSize,
    ref UInt32 outFilledSize);

Function Description

Query the NVR node list.

Parameter Description

Parameters Type Remark
lUserIDin LONG User ID, the return value of NET_SDK_Login or NET_SDK_LoginEx.
queryParamin const NET_SDK_NODE_PARAM Query parameters.
outNodesBufferout char* Node list.
outNodesBufferSizein unsigned int The length of outNodesBuffer.
outFilledSizeout unsigned int* Returns the length of the data.

Return Value

  • Type：BOOL

  • Remark：Returns TRUE if successful, FALSE if failed.

Remarks

According to different queryParam.nodeType, the outNodesBuffer type is different, as follows:

nodeType type outNodesBuffer type
1(E_DIGITAL_CHL_TYPE) Array of NET_SDK_DEV_NODE_CHL
2(E_ANALOG_CHL_TYPE) Array of NET_SDK_DEV_NODE_CHL
3(E_ALARMOUT_CHL_TYPE) Array of NET_SDK_DEV_NODE_ALARMOUT
4(E_SENSOR_CHL_TYPE) Array of NET_SDK_DEV_NODE_SENSOR
5(E_VOICE_CHL_TYPE) Array of NET_SDK_DEV_NODE_VOICE
Error Code