Encode your text into ASCII HEX code using C

20 Jan 2013

This C++ code will convert the typing keystrokes from keyboard into ASCII code(HEX).

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

char HEXST(char a){  
	int rem,no=int(a),i=0;  
	char tmp,string[2];  

	while(no>0){  
		rem=no%16; 
		no=(no/16); 

		switch(rem){ 
			case 0:
			tmp='A'; 
			break; 

			case 1:
			tmp='B'; 
			break; 

			case 2:
			tmp='C'; 
			break; 

			case 3:
			tmp='D'; 
			break; 

			case 4:
			tmp='E'; 
			break; 

			case 5:
			tmp='F'; 
			break; 

			default:
			tmp=rem; 
		} 
		string[i]=tmp; 
		i++; 
	} 
	for(int y=1;y>=0;y--){ 
		if(string[y]<65||string[y]>122) 
			printf("%d",string[y]); 
		else 
			printf("%c",string[y]); 
	} 

} 
void HEXS() 
{ 

	char typed; 
	printf("Enter Words and Corresponding Hex will be displayed\n=======================================\n\n\nPress Esc twice to quit"); 
	while(typed!=27){ 
		typed=getch(); 
		printf("\n%c\t",typed); 
		HEXST(typed); 
	} 
	getch(); 
} 

void main() 
{ 
	HEXS(); 
} 
 

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