Legacy Document

Inside Macintosh: Imaging With QuickDraw /

Chapter 4 - Color QuickDraw / Color QuickDraw Reference

Color QuickDraw Routines / Determining Current Colors and Best Intermediate Colors

GetCPixel

To determine the color of an individual pixel, use the GetCPixel procedure.

PROCEDURE GetCPixel (h,v: Integer; VAR cPix: RGBColor);

h

The horizontal coordinate of the point at the upper-left corner of the pixel.

v

The vertical coordinate of the point at the upper-left corner of the pixel.

cPix

The RGBColor record for the pixel.

DESCRIPTION

In the cPix parameter, the GetCPixel procedure returns the RGB color for the pixel at the location you specify in the h and v parameters.

SEE ALSO

You can use the SetCPixel procedure, described on page 4-64, to change the color of this pixel.