Skip to content

Latest commit

 

History

History
43 lines (29 loc) · 998 Bytes

SetRGB4.md

File metadata and controls

43 lines (29 loc) · 998 Bytes

NAME

SetRGB4 -- Set one color register for this viewport.

SYNOPSIS

    SetRGB4(  vp, n,   r,    g,    b)
              a0  d0  d1:4  d2:4  d3:4

    void SetRGB4( struct ViewPort *, SHORT, UBYTE, UBYTE, UBYTE );

Links: ViewPort

FUNCTION

Change the color look up table so that this viewport displays the color (r,g,b) for pen number n.

INPUTS

vp - pointer to viewport structure n - the color number (range from 0 to 31) r - red level (0-15) g - green level (0-15) b - blue level (0-15)

RESULT If there is a ColorMap for this viewport, then the value will be stored in the ColorMap. The selected color register is changed to match your specs. If the color value is unused then nothing will happen.

BUGS NOTE: Under V36 and up, it is not safe to call this function from an interrupt, due to semaphore protection of graphics copper lists.

SEE ALSO

LoadRGB4 GetRGB4 graphics/view.h