ADLINK Technology HDV62, User Manual

Page: 58 / 164

Function Library 47
4.4.8 Y Offset
Purpose
These functions set or get start lines of image cropping.
Prototype

C/C++
int Hdv62_SetYOffset (UINT Number, UINT YOffset)
int Hdv62_GetYOffset (UINT Number, UINT & YOffset)
 C#
int SetYOffset (uint Number, uint YOffset)
int GetYOffset (uint Number, out uint YOffset)
 VB.Net
SetYOffset (ByVal Number as UInteger, ByVal YOffset
as UInteger) As Integer
GetYOffset (ByVal Number as UInteger, ByRef YOffset
as UInteger) As Integer
Parameters
 Number
The number of device. The allowed value is from 0 to 15.
 YOffset
The start lines of image cropping as illustrated in Figure 4-1.
The YOffset coupled with Height is the cropping parame-
ters. The device crops sensor image if the YOffset is larger
than 0. Following criteria must be met:
 Height <= SensorHeight
 YOffset <= SensorHeight
 Height is an even number.
 YOffset is an even number if sensor source is interlaced.
Return Value
No error occurs if return value >= 0; if negative value, please refer
to Section 4.9 for error information about return codes.