ADLINK Technology HDV62, User Manual

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114 Programming Guide
5.4.2.3 Trigger Input Mode
Purpose
These functions read or write the mode of external trigger signal.
Trigger Input is an external pin which can accept external signal.
This signal can control when to capture a frame.
Prototype
 C/C++
HRESULT TriggerIn_WriteMode (UINT Value)
HRESULT TriggerIn_ReadMode (UINT *Value)
 C#
int TriggerIn_WriteMode (uint Value)
int TriggerIn_ReadMode (out uint Value)
 VB.Net
TriggerIn_WriteMode (ByVal Value As UInteger) As
Integer
TriggerIn_ReadMode (ByRef Value As UInteger) As
Integer
Parameters
 Value
Enable or disable trigger input. Could be one of the follow-
ing values:
0: Free run – the source input is according to CCD camera
1: External trigger or software trigger – holds frame acquisi-
tion until trigger input is active or SoftwareTrigger is called.
Return Value
No error occurs if return value >= 0; if negative value, call AMGet-
ErrorText function to get error information about return codes.