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This method adjusts the brightness of a bitmap image.
HRESULT AdjustBrightness( FLOAT percent);
Parameters
percent
[in] A FLOAT value used to adjust the brightness of a bitmap image.The value for percent must fall in the range -1 <= percent <= 1.
The pixel intensity value is between 0.0 and 1.0, so the brightness adjustment is described by the following equation.
New Intensity = Old Intensity + percentA positive value of the percent parameter causes the image to become brighter; a negative value makes the image darker.
Return Values
This method returns S_OK if successful.
This method returns E_INVALIDARG if percent < -1, or if percent > 1.
Requirements
OS Versions: Windows CE 5.0 and later.
Header: Imaging.h.
Link Library: Imaging.lib.
See Also
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