Skip to main content

restorecrtmode example in c

Header file:
    graphics.h

Synopsis:
      void restorecrtmode();
     
Description:
     restorecrtmode() restores screen mode to text mode.


restorecrtmode function in c graphics



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

  int main(void) {
        /* request auto detection */
        int gd = DETECT, gmode, err;
        int midx, midy;

        /* initialize graphics and local variables */
        initgraph(&gd, &gmode, "C:/TURBOC3/BGI");

        /* read result of initialization */
        err = graphresult();

        if (err != grOk) {
                /* an error occurred */
                printf("Graphics error: %s\n", grapherrormsg(err));
                getch();
                return 0;
        }

        /* mid position in x and y-axis */
        midx = getmaxx() / 2;
        midy = getmaxy() / 2;

        /* output a message */
        settextjustify(CENTER_TEXT, CENTER_TEXT);
        outtextxy(midx, midy - 100, "GRAPHICS MODE");

        /* draw a rectange at the given position */
        rectangle(midx - 50, midy - 50, midx + 50, midy + 50);
        getch();

        /* restore system to text mode */
        restorecrtmode();
        printf("Restored system to text mode");
        getch();

        /* return to graphics mode */
        setgraphmode(getgraphmode());

        /* output a message */
        settextjustify(CENTER_TEXT, CENTER_TEXT);
        outtextxy(midx, midy - 100, "BACK TO GRAPHIC MODE!!");

        /* draws a rectangle at the given postion */
        rectangle(midx - 50, midy - 50, midx + 50, midy + 50);

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





Output: (restorecrtmode built-in function in c graphics.h)


Comments

Popular posts from this blog

Array of pointer to structure

Array of pointer to structure is nothing but an array whose elements are pointers to structure How to declare array of pointer to structure? Below is an example declaration for array of pointer to structure. struct student *arr[10]; Here, arr is an array 10 of pointer to structure student. Dynamic memory allocation: Below is the procedure to perform dynamic memory allocation for the structure pointers in an array. struct student { int age; char name[32]; }; fun() { int i = 0; struct student *arr[10]; for (i = 0; i < 10; i++) { /* dynamic memory allocation for 5 structure objects */ arr[i] = (struct student *)malloc(sizeof(struct student) * 5); } } Write a c program to pass an array of structure pointers to another function   #include <stdio.h>   #include <stdlib.h>   #include <string.h>   struct student {         int age, rollno;         char name[32];   };   /* printing details of stude...

Nested function in C

What is nested function? If a function is defined inside another function, then it is called as nested function.  Nested function example in C: Consider the following example, int add(int a, int b) {        void print(int res) {          printf("Result is %d, res);       }       print(a+b);       return 0; } Here, print() is a nested function.  Because, it is defined inside another function named add() . Example C program using nested functions: #include <stdio.h> void add(int a, int b) { void print(int res) { // nested function printf("Result is %d\n", res); return; } print(a + b); // passing sum of a and b as parameter return; } int main() { add(10, 20); return 0; }   Output:   jp@jp-VirtualBox:~/$ ./a.out   Result is 30 Previous Next

Difference between asterisk and ampersand operators in c

Address Operator (& - Ampersand): Returns address of the given variable.  Consider the following example, int *ptr, var = 10; ptr = &var; ptr = &var sets the address of the variable var to pointer ptr.  & is also called as reference operator. Let us try to understand the purpose of reference operator using the following example program.   #include <stdio.h>   int main() {         int var = 10, *ptr;         /* assigning address of variable var to pointer ptr */         ptr = &var;         /* printing the address of the variable var */         printf("Address of var is 0x%x\n", &var);         /* printing the value of pointer ptr */         printf("Value of ptr is 0x%x\n", ptr);         return 0;   }   Output:   jp@jp-VirtualBox:~/$ ./a.out   Address of var is 0x...