Q52140: PG Chart Legend Window Is Restricted to Default Coordinates

Article: Q52140
Product(s): See article
Version(s): 2.00 2.01
Operating System(s): MS-DOS
Keyword(s): ENDUSER | s_quickasm buglist2.00 buglist2.01 | mspl13_c
Last Modified: 17-JAN-1990

In Microsoft QuickC Versions 2.00 and 2.01 Presentation Graphics, the
size of the legend window (like the key on a map) is restricted to the
default. Setting "env.legend.autosize=FALSE" and manually setting
coordinates prevents the chart from being displayed. Also, the global
variable, errno, is set to 105, meaning "Invalid legend window
specified."

Microsoft has confirmed this to be a problem in QuickC Versions 2.00
and 2.01. We are researching this problem and will post new
information here as it becomes available.

The example below demonstrates the problem:

/* PIE.C:  Create sample pie chart.  */
#include <conio.h>
#include <string.h>
#include <graph.h>
#include <pgchart.h>

#define MONTHS 12

typedef enum {FALSE, TRUE} boolean;

float far value[MONTHS] =
{
   33.0, 27.0, 42.0, 64.0,106.0,157.0,
  182.0,217.0,128.0, 62.0, 43.0, 36.0
};
char far *category[MONTHS] =
{
  "Jan", "Feb", "Mar", "Apr",
  "May", "Jun", "Jly", "Aug",
  "Sep", "Oct", "Nov", "Dec"
};
short far explode[MONTHS] = {0};

main()
{
  chartenv env;
  int mode = _VRES16COLOR, errno = 0;

  /* Set highest video mode available */
  printf ("This section displays a chart\n");
  getch();
  while(!_setvideomode( mode ))
     mode--;
  if(mode == _TEXTMONO)
     return( 0 );

  /* Initialize chart library and a default pie chart */
  _pg_initchart();
  _pg_defaultchart( &env, _PG_PIECHART, _PG_PERCENT );

  /* Add titles and some chart options */
  strcpy( env.maintitle.title, "Good Neighbor Grocery" );
  env.maintitle.titlecolor = 6;
  env.maintitle.justify = _PG_RIGHT;
  strcpy( env.subtitle.title, "Orange Juice Sales" );
  env.subtitle.titlecolor = 6;
  env.subtitle.justify = _PG_RIGHT;
  env.chartwindow.border = FALSE;

  if(( errno = _pg_chartpie( &env, category, value,
                    explode, MONTHS )) != 0)
  {
     _setvideomode( _DEFAULTMODE );
     _outtext( "Error:  can't draw chart" );
     printf ("\nerrno = %d\n", errno);
  }
  else
  {
     getch();
     _setvideomode( _DEFAULTMODE );
  }

  printf ("The autosize coordinates are:\n");
  printf ("x1 = %d  y1 = %d  x2 = %d  y2 = %d\n",
          env.legend.legendwindow.x1,
          env.legend.legendwindow.y1,
          env.legend.legendwindow.x2,
          env.legend.legendwindow.y2);
  printf ("The following section will fail to display a chart\n"
          "even though I set manual coordinates = autosize coordinates\n");
  getch();
  _setvideomode( mode );
  env.legend.autosize = FALSE;
  env.legend.legendwindow.x1 = 573;
  env.legend.legendwindow.y1 = 36;
  env.legend.legendwindow.x2 = 631;
  env.legend.legendwindow.y2 = 192;
  if(( errno = _pg_chartpie( &env, category, value,
                    explode, MONTHS )) != 0)
  {
     _setvideomode( _DEFAULTMODE );
     _outtext( "Error:  can't draw chart" );
     printf ("\nerrno = %d\n", errno);
  }
  else
  {
     getch();
     _setvideomode( _DEFAULTMODE );
  }
  printf ("The manual coordinates are:\n");
  printf ("x1 = %d  y1 = %d  x2 = %d  y2 = %d\n",
          env.legend.legendwindow.x1,
          env.legend.legendwindow.y1,
          env.legend.legendwindow.x2,
          env.legend.legendwindow.y2);
   return(0);
}

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.