BackColor

Select background color

#include <Quickdraw.h> Quickdraw

void BackColor(color );

long color ; one of 8 color codes

BackColor selects the background color to be displayed on devices that

interpret color information. This function is part of the "old model

Quickdraw color support.

color is one of 8 pre- defined color codes. Use one of the named constants

found in Quickdraw.h as follows:

blackColor 33

whiteColor 30 initial, default background color

redColor 205
 greenColor 341
blueColor 409

cyanColor 273 aqua: bluish- green

magentaColor 137 purple: bluish-red

Notes: BackColor sets the value of the bkColor field of the current GrafPort

structure. It is used to draw in color while remaining compatible with

pre-MacII Macs.

On devices that translate color information, the background of all

subsequent drawing will be shown as the specified color. On

black-and-white devices, all values except for whiteColor are interpreted

as blackColor.

Note: This function does not affect the colors used in redrawing pictures

(DrawPicture) that were created with different colors. Pictures are

drawn in their original colors. However, unless the picture explicitly

performs an "erase", it will not contain any background color details.

Use the ForeColor function to specify the foreground color. The

ColorBit function lets you select which "plane" to draw upon.

Don't use an RGBColor as an argument to this function. Especially, be sure

you don't use the background color of a CGrafPort. To use 32-bit

Quickdraw, see RGBBackColor