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Cream of the Crop 20
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Cream of the Crop 20 (Terry Blount) (1996).iso
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ALGEDSRC.ZIP
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MOUSE.C
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C/C++ Source or Header
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1996-06-06
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1KB
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61 lines
/*--------------------------------------------------------------------
this is the code for DOS (Turbo C++)
*/
#define MOUSEINT 0x33
#include <dos.h>
/*
To do various functions (input) [output] set 'a' to
0 - test if loaded [reg.ax = $ffff]
1 - show cursor
2 - hide cursor
3 - get position [b buttons, c x, d y]
4 - set position (c x,d y)
5 - press button (b buttons, c x, d y) [b count]
6 - release button (b buttons, c x, d y) [b count]
7 - set x range (c min, d max)
8 - set y range (c min, d max)
10- text cursor (b 0=soft 1=hard, c ?, d ?)
15- mickeys (c xscale, d yscale?)
*/
int mouse(int a,int *b,int *c,int *d)
{
static union REGS regs;
regs.x.ax = a;
regs.x.bx = *b;
regs.x.cx = *c;
regs.x.dx = *d;
int86(MOUSEINT,®s,®s);
*b = regs.x.bx;
*c = regs.x.cx;
*d = regs.x.dx;
return regs.x.ax;
}
int init_mouse(void) {
int x=0;
long *p;
/* this is some code to try to avoid hangs when int 33 is not
loaded with anything. */
p = (long*)(MOUSEINT * 4);
if (*p==0) return 1;
return mouse(0,&x,&x,&x);
}
int show_mouse(void) {
int b=0; return mouse(1,&b,&b,&b);
}
int hide_mouse(void) {
int b=0; return mouse(2,&b,&b,&b);
}
int get_mouse(int *x,int *y) {
int b=0; mouse(3,&b,x,y); return b;
}
int set_mouse(int x,int y) {
int b=0; return mouse(4,&b,&x,&y);
}