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c:graphics.h:restorecrtmode

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c:graphics.h:restorecrtmode [2015/05/06 23:06] (current)
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 +===== restorecrtmode =====
 +
 +
 +====Syntax of restorecrtmode ==== 
 + <code c>
 +#include <graphics.h>
 +void restorecrtmode(void);
 +  </code>
 +
 +
 +==== Description of restorecrtmode ==== 
 +<code c>
 +restorecrtmode restores the original video mode detected by initgraph.
 +This function can be used in conjunction with setgraphmode to switch back
 +and forth between text and graphics modes. textmode should not be used
 +for this purpose; use it only when the screen is in text mode, to change
 +to a different text mode.
 +</code>
 +
 +
 +==== Example of restorecrtmode ====
 +<code c>
 +/* restorecrtmode example */
 +
 +#include <graphics.h>
 +#include <stdlib.h>
 +#include <stdio.h>
 +#include <conio.h>
 +
 +int main(void)
 +{
 +   /* request autodetection */
 +   int gdriver = DETECT, gmode, errorcode;
 +   int x, y;
 +
 +   /* 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 */
 +   }
 +
 +   x = getmaxx() / 2;
 +   y = getmaxy() / 2;
 +
 +   /* output a message */
 +   settextjustify(CENTER_TEXT, CENTER_TEXT);
 +   outtextxy(x, y, "Press any key to exit graphics:");
 +   getch();
 +
 +   /* restore system to text mode */
 +   restorecrtmode();
 +   printf("We're now in text mode.\n");
 +   printf("Press any key to return to graphics mode:");
 +   getch();
 +
 +   /* return to graphics mode */
 +
 +   setgraphmode(getgraphmode());
 +
 +   /* output a message */
 +   settextjustify(CENTER_TEXT, CENTER_TEXT);
 +   outtextxy(x, y, "We're back in graphics mode.");
 +   outtextxy(x, y+textheight("W"), "Press any key to halt:");
 +
 +   /* clean up */
 +   getch();
 +   closegraph();
 +   return 0;
 +}
 +</code>
 +
 +
 +==== See also ====
 +[[getgraphmode]]
 +[[initgraph]]
 +[[setgraphmode]]
 +
 +
 +===== output of restorecrtmode example ===== 
 +
 +    no output of example at the moment
 +    do not hesitate and add it...  
 +
 +
  
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c/graphics.h/restorecrtmode.txt · Last modified: 2015/05/06 23:06 (external edit)

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