Function

CGImageGetBitsPerComponent

Returns the number of bits allocated for a single color component of a bitmap image.

Declaration

size_t CGImageGetBitsPerComponent(CGImageRef image);

Parameters

image: The image to examine.

Return Value

The number of bits used in memory for each color component of the specified bitmap image (or image mask). Possible values are 1, 2, 4, or 8. For example, for a 16-bit RGB(A) colorspace, the function would return a value of 4 bits per color component.

See Also

Getting Information About an Image

CGImageGetAlphaInfo

Returns the alpha channel information for a bitmap image.

CGImageGetBitmapInfo

Returns the bitmap information for a bitmap image.

CGImageGetBitsPerPixel

Returns the number of bits allocated for a single pixel in a bitmap image.

CGImageGetBytesPerRow

Returns the number of bytes allocated for a single row of a bitmap image.

CGImageGetColorSpace

Return the color space for a bitmap image.

CGImageGetDataProvider

Returns the data provider for a bitmap image.

CGImageGetDecode

Returns the decode array for a bitmap image.

CGImageGetHeight

Returns the height of a bitmap image.

CGImageGetShouldInterpolate

Returns the interpolation setting for a bitmap image.

CGImageGetRenderingIntent

Returns the rendering intent setting for a bitmap image.

CGImageGetWidth

Returns the width of a bitmap image.

CGImageIsMask

Returns whether a bitmap image is an image mask.