NAME¶
plgcolbga - Returns the background color (cmap0[0]) by 8-bit RGB value
and double alpha transparency value
SYNOPSIS¶
plgcolbga(r, g, b, alpha)
DESCRIPTION¶
Returns the background color (cmap0[0]) by 8-bit RGB value and double alpha
transparency value.
This function is used in example 31.
ARGUMENTS¶
- r (PLINT *, output)
- Pointer to an unsigned 8-bit integer (0-255) representing the degree of
red in the color.
- g (PLINT *, output)
- Pointer to an unsigned 8-bit integer (0-255) representing the degree of
green in the color.
- b (PLINT *, output)
- Pointer to an unsigned 8-bit integer (0-255) representing the degree of
blue in the color.
- alpha (PLFLT *, output)
- Pointer to PLFLT alpha transparency value.
