IIXC_Page::GetChannelPixel Method
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== Syntax == | == Syntax == | ||
− | <pre class="brush:cpp;gutter:false">HRESULT GetChannelPixel([in] IXC_Channel | + | <pre class="brush:cpp;gutter:false">HRESULT GetChannelPixel([in] IXC_Channel nChannel, |
[in] LONG nX, | [in] LONG nX, | ||
[in] LONG nY, | [in] LONG nY, | ||
− | [out, retval] UCHAR* | + | [out, retval] UCHAR* nValue);</pre> |
== Parameters == | == Parameters == | ||
− | ; | + | ;nChannel |
:[in] Specifies the [[PXV:IXC_Channel|color channel]] from which information will be retrieved. | :[in] Specifies the [[PXV:IXC_Channel|color channel]] from which information will be retrieved. | ||
;nX | ;nX | ||
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;nY | ;nY | ||
:[in] Specifies the y-coordinate of the pixel to be examined. | :[in] Specifies the y-coordinate of the pixel to be examined. | ||
− | ; | + | ;nValue |
:[out, retval] Pointer to UCHAR value that receives the value of color channel at specified pixel. | :[out, retval] Pointer to UCHAR value that receives the value of color channel at specified pixel. | ||
Latest revision as of 03:16, 15 June 2015
The GetChannelPixel method retrieves the pixel color channel value stored at the specified coordinates.
Syntax
HRESULT GetChannelPixel([in] IXC_Channel nChannel, [in] LONG nX, [in] LONG nY, [out, retval] UCHAR* nValue);
Parameters
- nChannel
- [in] Specifies the color channel from which information will be retrieved.
- nX
- [in] Specifies the x-coordinate of the pixel to be examined.
- nY
- [in] Specifies the y-coordinate of the pixel to be examined.
- nValue
- [out, retval] Pointer to UCHAR value that receives the value of color channel at specified pixel.
Return Value
Returns S_OK if operation was successful or error code in other cases.