[r.stiltskin]

Look at the C++ FAQs. They are there for a reason.

[ButchDean]

Capslock off on headings please.

Can you tell us which API you are using, as well as post the code?

[Dogstopper]

Turbo C++ is several decades old at this point and will not run on modern systems. Please view this post:
http://www.dreaminco...60&#entry893260

[ButchDean]

The Intel, on 29 January 2011 - 05:33 PM, said:

ButchDean, on 29 January 2011 - 10:30 AM, said:

Capslock off on headings please.

Can you tell us which API you are using, as well as post the code?

Turbo C++ - The borland version.

And here's your answer.

Doesn't help at all, right? That's why we need some source.

[ButchDean]

The Intel, on 29 January 2011 - 05:37 PM, said:

The Intel, on 29 January 2011 - 10:33 AM, said:

ButchDean, on 29 January 2011 - 10:30 AM, said:

Capslock off on headings please.

Can you tell us which API you are using, as well as post the code?

Turbo C++ - The borland version.

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

int main(void)
{
   /* request auto detection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy;
   int radius = 100;

   /* initialize graphics and local variables */
   initgraph(&gdriver, &gmode, "");

   /* read result of initialization */
   errorcode = graphresult();
   if (errorcode != grOk)  /* an error occurred */
   {
      printf("Graphics error: %s\n", grapherrormsg(errorcode));
      printf("Press any key to halt:");
      getch();
      exit(1); /* terminate with an error code */
   }

   midx = getmaxx() / 2;
   midy = getmaxy() / 2;
   setcolor(getmaxcolor());

   /* draw the circle */
   circle(midx, midy, radius);

   /* clean up */
   getch();
   closegraph();
   return 0;
}

Turbo C++ is so old that I don't have it installed either. Have you debugged to see what is happening exactly? For instance do you know if

if (errorcode != grOk)

Is true causing the program to terminate?

[horace]

if I run this it draws a circle.
try running the .exe file from the Windows Command Prompt - it is probably not finding the .BGI files which drives the grapics

[ButchDean]

The Intel, on 29 January 2011 - 05:46 PM, said:

I just compiled it line by line by pressing the F7 key. It goes on well till line 14 ( the initgraph line) after which it closes.

Then you are failing to initialize your graphics, hence the fact that they fail to show. When you debug that is the value of gdriver and gmode? Also does initgraph return any error codes?

[ButchDean]

The Intel, on 29 January 2011 - 06:01 PM, said:

ButchDean, on 29 January 2011 - 10:54 AM, said:

The Intel, on 29 January 2011 - 05:46 PM, said:

I just compiled it line by line by pressing the F7 key. It goes on well till line 14 ( the initgraph line) after which it closes.

Then you are failing to initialize your graphics, hence the fact that they fail to show. When you debug that is the value of gdriver and gmode? Also does initgraph return any error codes?

Didn't quite get your first question.
On compilation, there are no errors whatsoever. On pressing alt + f7 that is, it checks for errors and finds absolutely none.

horace got it working. Have you tried their suggestion?