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The 640 MEG Shareware Studio 2
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The 640 Meg Shareware Studio CD-ROM Volume II (Data Express)(1993).ISO
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fgl105c.zip
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05-14.C
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1991-05-13
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2KB
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73 lines
main()
{
int mode, old_mode;
char string[5];
/* Ask for the video mode number */
printf("Which video mode? ");
scanf("%d",&mode);
/* Make sure the entered value is valid */
if (mode < 0 || mode > 21) {
printf("%d is not a valid video mode number.\n",mode);
exit();
}
/* Make sure the requested video mode is available */
if (fg_testmode(mode,1) == 0) {
printf("Mode %d is not available on this system.\n",mode);
exit();
}
/* Establish the video mode */
old_mode = fg_getmode();
fg_setmode(mode);
/* Perform mode-specific initializations */
if (mode <= 3 || mode == 7) /* text modes */
fg_cursor(0);
else if (mode == 4 || mode == 5) { /* CGA color modes */
fg_palette(0,0);
fg_defcolor(14,3);
}
else if (mode == 6) { /* CGA two-color mode */
fg_palette(0,14);
fg_defcolor(14,1);
}
else if (mode == 11) /* Hercules mode */
fg_defcolor(14,1);
else if (mode == 12) /* Hercules low-res mode */
fg_defcolor(14,3);
else if (mode == 17) { /* VGA two-color mode */
fg_palette(1,14);
fg_setrgb(14,63,63,21);
fg_defcolor(14,1);
}
/* Display a message that includes the video mode number */
fg_setcolor(14);
fg_text("I'm running in mode ",20);
sprintf(string,"%d. ",mode);
fg_text(string,3);
/* Wait for a keystroke */
fg_waitkey();
/* Restore the original video mode and screen attributes */
fg_setmode(old_mode);
fg_reset();
}