ADLINK Technology HDV62, User Manual

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44 Function Library
4.4.5 Width
Purpose
These functions set or get active width of image. They are used to
reduce horizontal pixels per line.
Prototype

C/C++
int Hdv62_SetWidth (UINT Number, UINT Width)
int Hdv62_GetWidth (UINT Number, UINT & Width)
 C#
int SetWidth (uint Number, uint Width)
int GetWidth (uint Number, out uint Width)
 VB.Net
SetWidth (ByVal Number as UInteger, ByVal Width as
UInteger) As Integer
GetWidth (ByVal Number as UInteger, ByRef Width as
UInteger) As Integer
Parameters
 Number
The number of device. The allowed value is from 0 to 15.
 Width
The active width of image as illustrated in Figure 4-1. The
width coupled with XOffset is the cropping parameters. The
device crops sensor image if the width is less than Sensor-
Width which is obtained from section 4.4.3. The following
criteria must be met:
 Width <= SensorWidth
 Width + XOffset <= SensorWidth
 Width needs to be multiple of 8 pixels.
Return Value
No error occurs if return value >= 0; if negative value, please refer
to Section 4.9 for error information about return codes.