ImageGear for C and C++ on Windows v19.10 - Updated
IG_FX_pinch
API Reference Guide > Core Component API Reference > Core Component Functions Reference > FX Functions > IG_FX_pinch

This function pinches an image toward or away from the pinch center.

Declaration:

 
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AT_ERRCOUNT EXPORT ACCUAPI IG_FX_pinch(
        HIGEAR hIGear, 
        AT_POINT nCenter,
        AT_INT nRadius,
        AT_FLOAT fStrength,
        AT_BOOL bInterpolate,
        HIGPIXEL hbkColor, 
        LPAT_RECT lpRect 
);

Arguments:

Name Type Description
hIGear HIGEAR Image to which to apply the effect.
nCenter AT_POINT Pinch center, in pixels.
nRadius AT_INT Pinch radius, in pixels.
fStrength AT_FLOAT Pinch strength. Positive value means that the page is pinched away from the center.
bInterpolate AT_BOOL If TRUE, interpolation is used during processing.
hbkColor HIGPIXEL Background color. It should have the same color space and channel depths as the image to which the effect is applied.
lpRect LPAT_RECT Rectangular area to which to apply the effect, or NULL for whole image.

Return Value:

Returns the number of ImageGear errors that occurred during this function call.

Supported Raster Image Formats:

When bInterpolate is FALSE, all pixel formats supported by ImageGear for C and C++, except:

When bInterpolate is TRUE, all pixel formats supported by ImageGear for C and C++, except: