plgcolbga.3plplot man page

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.

Authors

Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history.

See Also

PLplot documentation at http://plplot.sourceforge.net/documentation.php.

Info

August, 2015 PLplot API