Returns the background color (cmap0[0]) by 8-bit rgb value and double alpha transparency value
plgcolbga(r, g, b, alpha)
Returns the background color (cmap0[0]) by 8-bit RGB value and double alpha transparency value.
This function is used in example 31.
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.
Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history.
PLplot documentation at http://plplot.sourceforge.net/documentation.php.