Shadowed window effect in DOS

This is a discussion on Shadowed window effect in DOS within the C Programming forums, part of the General Programming Boards category; I'm trying to create a shadowed window effect in dos, but it is not coming out right....here is what I ...

  1. #1
    fiveball
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    Shadowed window effect in DOS

    I'm trying to create a shadowed window effect in dos, but it is not coming out right....here is what I have so far...

    #include <stdio.h>
    #include <conio.h>

    void main()
    {
    textmode(3); textattr(15 + (8<<4)); clrscr();
    window(16,6,66,21);
    textattr(15 + (0<<4));
    clrscr();
    window(15,5,65,20);
    textmode(3); textattr(15 + (1<<4));
    clrscr();


    while(!kbhit());

    }

    As you can see...the first command sets the entire background to a dark gray color. Then it creates a window and sets it's background to black. It works till there. After that it creates a new window and the background is supposed to be blue but it is coming up black. Does anyone know what I did wrong????

  2. #2
    Banned master5001's Avatar
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    You forgot code tags

  3. #3
    Registered User Vber's Avatar
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    And you forgot too, that it's incorrect to use void main(), void only returns int, so change it to int main() and return an integer value at the end.

  4. #4
    Banned master5001's Avatar
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    >> void only returns int

    I'm sure Vber meant "main only returns an int"

  5. #5
    Fiveball
    Guest
    OK, sorry about the code tags. Didn't read that till after I typed it. This program is for a class and our teacher is having us use void main() instead of int main().....I too think this is very stupid, but I have to follow orders or fail.

  6. #6
    and the Hat of Clumsiness GanglyLamb's Avatar
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    >>Does anyone know what I did wrong????

    Nothing when icompile this it works fine. Although i dont really understand why u first draw everything gray (with black window) to set it all blue afterwards.....

    Mayb u should try to compile your code and hmm ill just give an example.
    Code:
    #include <stdio.h>
    #include <conio.h>
    
    int main()
    {
    
    
    	textmode(3);
    	textattr(15 + (8<<4));
    	clrscr();
    	window(16,6,66,21);
    	/*
    	textattr(15 + (0<<4));
    	clrscr();
    	window(15,5,65,20);
    	textmode(3);
    	textattr(15 + (1<<4));
    	clrscr();
    	while(!kbhit());
    	*/
    	return 0;
    }
    Try to do the same thing just put some /* and */ in ur code to see where it goes wrong with you. Because if i hadnt done it this way i would never have seen that there was a black window and grey background be4 the blue window.

    And according to my compiler reference: clrscr, window and textattr arent really portable.
    Last edited by GanglyLamb; 03-14-2003 at 01:04 PM.

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