C++ graphics function!

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puttextxy( int x, int y, string str);

How can I use the string arguments as like we do in printf() function.

I mean to say that I want to insert a string like printf("%d",var) can I use same syntax for string argument of puttextxy() function

Posted 26-Dec-14 19:30pm

User 10060665

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Sergey Alexandrovich Kryukov 27-Dec-14 1:42am

There is no such thing as "C++ graphics". It depends on platform.
—SA

[no name] 27-Dec-14 2:23am

Solved myself.
Thanks alot.

Sergey Alexandrovich Kryukov 27-Dec-14 2:27am

Nothing. Good luck, call again.
—SA

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User 10060665 · Answer 1 · 2014-12-26T20:22:00

Solution 2

Got My Answer

C

char str[100];
sprintf(str,"(%d,%d)",x,y);
outtextxy(x,y,str);

C library function - sprintf()[^]

Posted 26-Dec-14 20:22pm

User 10060665

Garth J Lancaster · Answer 2 · 2014-12-26T19:47:00

Solution 1

you could wrap the supplied puttextxy function in your own code to provide this eg

C++

Shrikshel_puttextxy(int x, int y, string format, ...)
{
   string formatted_str = "";
   // form a string using format and varargs from ...
  
   puttextxy(x, y, formatted_str);
}

you'd then call your routine like :-

C++

Shrikshel_puttextxy(5,10,"%d",150);

you'd need to read up on using variable length arguments 'varargs' using '...' but its not too hard

Posted 26-Dec-14 19:47pm

Garth J Lancaster

Comments

[no name] 27-Dec-14 1:58am

This is not working...
char str[] = "%d,%d",x,y;

but its only shoing the "%d,%d"
please check..

Garth J Lancaster 27-Dec-14 2:25am

well, that's quite obvious - did you read up on 'varargs' ?

you need to do something like

char str[2048];
va_list arg;
va_start(arg, format);
vsnprintf(str, sizeof str, format, arg);
va_end(arg);

in your wrapper function to get your formatted string