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NET_SDK_FindEventInfo

Interface Definition

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POINTERHANDLE NET_SDK_FindEventInfo(
    LONG lUserID,
    DWORD dwType,
    ULONGLONG channlMask,
    DD_TIME* lpStartTime,
    DD_TIME* lpStopTime);
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public static extern POINTERHANDLE NET_SDK_FindEventInfo(
    int lUserID,
    uint dwType,
    uint channlMask,
    ref DD_TIME lpStartTime,
    ref DD_TIME lpStopTime);

Function Description

Search event information (only supports 3.0DVR).

Parameter Description

Parameters Type Remark
lUserIDin LONG User ID, the return value of NET_SDK_Login or NET_SDK_LoginEx.
dwTypein DWORD Event type. For specific event types, refer to DD_EVENT_TYPE.
channlMaskin ULONGLONG The channel where the event occurred. ((ULONGLONG)0x1 << N) N indicates the channel being queried.
lpStartTimein DD_TIME* The start time of the event.
lpStopTimein DD_TIME* The end time of the event.

Return Value

  • type:POINTERHANDLE

  • remark:-1 indicates failure, and other values ​​are used as event information lookup handles.

Remarks

None

Error Code