understanding the color change in AGECA002.ZIP

[bob323]

I've been trying to figure out how to change the color of the dos background. I've been looking at a file at:

http://www.geceventures.com/archive/dizzy.htm

a number of these files including:
AGECA002.ZIP that is a simple age calculator.
but I still don't quite understand how he did it... can anyone point me right on this one please......

 

[SirShahzad]

He includes some header files [ created by him ] those files have user-defined-functions which are helping programmer to use one [user-defined]function instead of many [c library fuctions].

As he used :
DspMessage(6,9,LT_CYAN,vid.normal_bg,"example..21 9 1966" );

1 > first two values are loction of cursor X & Y
we use gotoxy(int x, int y) function in C for this purpose

2> 3rd is text color value
we use textcolor(int txtcolr) fuction ic C for this purpose

3> 4th is backgroung color[used a structure for valuse]
we used textbackground(int bkgcolor) for this purpose in C

4> last is message to display
we use Cprintf("....&quot or cputs("...&quot for this purpose in C

if you don't have practice on UDF's then do it to improve your skills,
A good book for beginner is : programming in C and C++
by: Robert Lafore