Q34906: Run-Time Library Reference _getfillmask, _setfillmask docerrs

Article: Q34906
Product(s): See article
Version(s): 5.00 5.10 | 5.10
Operating System(s): MS-DOS | 5.10
Keyword(s): ENDUSER | docerr | mspl13_c
Last Modified: 26-AUG-1988

The program examples for _getfillmask and _setfillmask, on Pages
325-326 and Pages 521-522 of the "Microsoft C 5.1 Optimizing Compiler
Run-Time Library Reference" have an error. The fill mask array is
incorrectly initialized. Back slashes are required prior to "x" for
specifying hexadecimal constants for the char variables of the masks.

The following sample code correctly initializes the char variables:

#include <stdio.h>
#include <graph.h>

unsigned char *(style[6])={"\x78\x30\x30\x78\x30\x30\x78\x30",
                           "\x78\x32\x30\x78\x30\x38\x78\x32",
                           "\x78\x39\x38\x78\x63\x36\x78\x33",
                           "\x78\x65\x36\x78\x33\x38\x78\x62",
                           "\x78\x66\x63\x78\x65\x65\x78\x37",
                           "\x78\x66\x65\x78\x66\x65\x78\x66"};

char *oldstyle = "12345678"; /* place holder for old style */

main()
{
 int loop;
 _setvideomode(_MRES4COLOR);
 _getfillmask( oldstyle );
 _setcolor( 2 ); /* draw an ellipse under the */
 /* middle few rectangles in a different color */
 _ellipse( _GFILLINTERIOR, 120, 75, 200, 125 );
 _setcolor( 3 );
 for ( loop = 0; loop < 6; loop++ ) {
 /* make 6 rectangles, the first background color */
 _setfillmask( (char far *)(style[ loop ]) );
 _rectangle(_GFILLINTERIOR,loop*40+5,90,(loop+1)*40,110);
 }
 _setfillmask( oldstyle ); /* restore old style */
 while ( !kbhit() ); /* Strike any key to continue */
 _setvideomode (_DEFAULTMODE);
}

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