IIXC_Page::GetChannelPixel Method

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== Syntax ==
 
== Syntax ==
<pre class="brush:cpp;gutter:false">HRESULT GetChannelPixel([in]          [[PXV:IXC_Channel|IXC_Channel]]   nChannel,
+
<pre class="brush:cpp;gutter:false">HRESULT GetChannelPixel([in]          IXC_Channel  nChannel,
 
                         [in]          LONG        nX,
 
                         [in]          LONG        nX,
 
                         [in]          LONG        nY,
 
                         [in]          LONG        nY,

Revision as of 08:24, 18 May 2015


The GetChannelPixel method retrieves a value stored in a selected color channel at the specified coordinates.

Syntax

HRESULT GetChannelPixel([in]           IXC_Channel   nChannel,
                        [in]           LONG         nX,
                        [in]           LONG         nY,
                        [out, retval]  UCHAR*       pValue);

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.
pValue
[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.

See Also

IIXC_Page
IIXC_Page::CopyChannel
IIXC_Page::FillChannel
IIXC_Page::InvertChannel
IIXC_Page::SetChannelPixel
IXC_Channel