From Tracker Software PDF SDK
Revision as of 06:26, 29 April 2015 by Oliynykd
The method inverts color data only within the specified color channel.
HRESULT InvertChannel([in] IXC_Channel nCannel, [in] RECT* pRect);
- [in] Specifies the channel for which function should be applied.
- [in] Pointer to RECT structure which defines the rectangular area where colors should be inverted. If this parameter is NULL, the entire page will be inverted.
Note:Please note that processing of part of the page is not supported for some internal formats. For example, it is not supported for indexed images, because each pixel in such images contains not the color, but the index into color table (palette) which is common for the entire page.
Returns S_OK if operation was successful or error code in other cases.