How to Create Random Color Pairs

ID: Q109154

1.02 2.00 2.5x 2.6x | 2.5x 2.6x 3.00 | 2.5x 2.60a

MS-DOS              | WINDOWS        | MACINTOSH

The information in this article applies to:

Microsoft Visual FoxPro for Windows, version 3.0
Microsoft FoxPro for MS-DOS, versions 1.02, 2.0, 2.5x, 2.6x
Microsoft FoxPro for Windows, versions 2.5x, 2.6x
Microsoft FoxPro for Macintosh, version 2.5x, 2.6a

SUMMARY

It is sometimes desirable to randomly generate colors, for example, for a screen that changes the color for a @ ... SAY statement. This article demonstrates a sample procedure for creating random colors.

MORE INFORMATION

The following code displays the text "This is a test" with various randomly generated colors.

   FOR i = 1 to 50
      colorpair = randcolor()
      @ 2,2 SAY "This is a test" COLOR &colorpair
      FOR n = 1 to 10000 && Slows it down a bit so you can see it!
      ENDFOR
   ENDFOR

   PROCEDURE randcolor
   numcolor = INT(RAND()*100)                 && Create a 2-digit number
   num1 = ALLTRIM(STR(numcolor/10))           && store 1st digit
   num2 = ALLTRIM(STR(INT(MOD(numcolor,10)))) && store 2nd digit
   * Select one valid color from random digit
   color1 = CHRTRAN(num1,"0123456789","WNRGBBGRNW")
   color2 = CHRTRAN(num2,"0123456789","WNRGBBGRNW")
   * Combine two colors to create color pair
   colstrg = color1 + "," + color2
   RETURN colstrg

Additional reference words: VFoxWin 3.00 FoxMac FoxDos FoxWin 1.02 2.00 2.50 2.50a 2.50b 2.50c 2.60 2.60a KBCategory: KBSubcategory: FxprgGeneral

Keywords          : kbcode FxprgGeneral 
Version           : 1.02 2.00 2.5x 2.6x | 2.5x 2.6x
Platform          : MACINTOSH MS-DOS WINDOWS

Last Reviewed: May 22, 1998