How to draw a character at a random place on the screen - c++

Question

Hi,

Sorry about the dumb question, but is there a way to draw a character at a random place on the screen without using any "heavy" graphics libraries?

Thanks, Li

Answer 1

Assuming it's in console, 1 and 2

Answer 2

HDC hdc = GetDC(NULL);
RECT rc;
rc.left = 0;
rc.right = 100;
rc.top = 0;
rc.bottom = 100;
DrawText(hdc, L"Bla", 3, &rc, 0);

Am I helping a virus programmer here?

Answer 3

Try writing directly to video RAM at address B800:0000 (see Bios Memory Map).

Answer 4

Assuming this is a console application:

#include "windows.h"

void gotoxy(int x, int y) 
{ 
COORD coord; 
coord.X = x; coord.Y = y; 
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_H ANDLE), coord); 
}

void PaintcharOnRandomLocation(const char c)
{
srand(0);
int x = rand(79);
int y = rand(24);
gotoxy(x,y);
putch(c);
}