Adv_VAPI_GetContrast
Syntax
[C++]
BOOL Adv_VAPI_GetContrast(int nChannel,int *pnValue)
[Delphi]
function Adv_VAPI_GetContrast(nChannel:Integer; var
nValue:Integer):Boolean;
[VB]
function Adv_VAPI_GetContrast (ByVal nChannel As Integer,
ByRef pnValue As Integer) As Boolean
Parameters
nChannel : Specifies the video channel number on current
physical port. Its range is 0~3.
pnValue : Specifies the address of returned contrast of the
video channel on current physical port. Its
range of the value is 0~10000. 0 means deep
dark and 10000 means more contrast.
Return Value
TRUE
:
Function is successful
FALSE
:
Function is failed
Description
This function will return the contrast value of video channel on
the current port. The default contrast value of a video channel
is
5000
.
See Also
,
37
Summary of Contents for DVP-7020
Page 1: ...DVP 7020 4 Channel PCI bus Video Grabber Card User s Manual ...
Page 5: ...1 CHAPTER General Information ...
Page 7: ...1 3 Block Diagram DVP 7020 3 ...
Page 14: ......
Page 15: ...2 CHAPTER Functions Library ...
Page 27: ...23 ...
Page 32: ...DVP 7020 User s Manual 28 ...