HIKVISION DS-4 Series - 5.1.23. HW_SetPlayPos(); 5.1.24. HW_GetPlayPos(); 5.1.25. HW_SetJumpInterval(); 5.1.26. HW_Jump()

Technical Manual
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5.1.34. int HW_SetFileEndMsg(int hChannel, sem_t* nMsg);
Explanation:
Register the semaphore that will be post when the file finish decode
Parameter:
hChannel channel handler
nMsg semaphore
5.1.35. int HW_SetStreamOpenMode(int hChannel,ULONG nMode);
Explanation:
Set the change mode of the stream decoding
Parameter:
hChannel channel handler
nMode 0 ~ 5 , 0 means don‘t change just as decode file， 1 ~ 5 will change the
smooth and delay. If set 5, the stream will be more smooth but delay more
5.1.36. int HW_GetStreamOpenMode(int hChannel,ULONG *pMode);
Explanation:
Get the current change mode
Parameter:
hChannel channel handler
*pMode 0 ~ 5 ；
5.1.37. int HW_SetAudioPreview(int hChannel, UINT bEnable);
Explanation:
Set audio preview. The Link just as the HCI There will be only one channel could be
open in the time. The Sdk will close other channels. Call after HW_ChannelOpen and
HW_PlaySound
Parameter:
bEnable 1—open, 0—close
5.1.38. int HW_StartDecVgaDisplay(int hChannel, PREVIEWCONFIG* pPreviewConf,
UINT useSyncSem);
Explanation:
Start video display on the Vga；Just as the function StartVideoPreview() Please refer
to the Section4.16
Parameter:
pPreviewConf Please refer to the section 4.16
useSyncSem If set, the sdk will post pPreviewConf->SyncSem when decode one
frame
5.1.39. int HW_StopDecChanVgaDisplay(int hChannel);
Explanation:
Stop video display