ImageGear for C and C++ on Windows v19.0
IG_vect_light_get_exponent
| API Reference Guide > Vector Component API Reference > Vector Component Functions Reference > Light Functions > IG_vect_light_get_exponent |
This function gets a spot exponent of the light source.
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AT_ERRCOUNT ACCUAPI IG_vect_light_get_exponent(
HIG_VECT_LIGHTSOURCE hLightSource,
float* lpExponent
);
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| Name | Type | Description |
|---|---|---|
| hLightSource | HIG_VECT_LIGHTSOURCE | Light source handle. |
| lpExponent | float* | Buffer for the light spot exponent. The range of the spot exponent is 0..128. |
Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.
This function does not process image pixels.
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