Get the device capabilities.
BOOL NET_DVR_GetDeviceAbility( LONG lUserID, DWORD dwAbilityType, char *pInBuf, DWORD dwInLength, char *pOutBuf, DWORD dwOutLength );
[IN] Value returned by NET_DVR_Login_V40.
[IN] Capability types, which are different according to different devices and functions.
[IN] Input parameter buffer pointer, which are different according to different devices and functions, and they are returned in the structure or messages.
[IN] Size of input buffer.
[OUT] Output parameter buffer pointer, which are different according to different devices and functions, and they are returned in the structure or messages.
[OUT] Size of buffer for receiving data.
Returns TRUE for success, and returns FALSE for failure.
If FALSE is returned, you can call NET_DVR_GetLastError to get the error code.