textwidth() function in C
The header file graphics.h contains textwidth () function which returns the width of input string in pixels.
Syntax :
int textwidth(char *string);
Example :
Input : string = "Hello Geek ! Have a good day." Output :
Below is the implementation of textwidth() function.
// C Implementation for textwidth() #include <graphics.h> #include <stdio.h> //driver code int main() { // gm is Graphics mode which is // a computer display mode that // generates image using pixels. // DETECT is a macro defined in // "graphics.h" header file int gd = DETECT, gm, color, width; char arr[100]; // initgraph initializes the // graphics system by loading a // graphics driver from disk initgraph(&gd, &gm, "" ); // textwidth function width = textwidth( "Hello Geek ! Have a good day." ); //sprintf stands for “String print”. //Instead of printing on console, //it store output on char buffer //which are specified in sprintf sprintf (arr, "Textwidth is = %d" , width); //outtext function displays text //at current position. outtext(arr); getch(); // closegraph function closes the // graphics mode and deallocates // all memory allocated by // graphics system . closegraph(); return 0; } |
Output :
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