/* --------- hide the mouse cursor ------- */
void hide_mousecursor(void)
{
if (mouse_installed()) {
segread(&sregs);
mouse(2,0,0,0);
}
}
/* --------- display the mouse cursor -------- */
void show_mousecursor(void)
{
if (mouse_installed()) {
segread(&sregs);
mouse(1,0,0,0);
}
}
/* -------- position the mouse cursor -------- */
void set_mouseposition(int x, int y)
{
if (mouse_installed()) {
if (SCREENWIDTH == 40)
x *= 2;
mouse(4,0,x*8,y*8);
}
}
/* --- return true if a mouse button has been released --- */
int button_releases(void)
{
if (mouse_installed()) {
mouse(6,0,0,0);
return regs.h.bx;
}
return 0;
}
/* ------ return true if mouse buttons are pressed ------- */
int mousebuttons(void)
{
if (mouse_installed()) {
mouse(3,0,0,0);
return regs.h.bx & 3;
}
return 0;
}
/* --- return true if a mouse button has been released --- */
int button_releases(void)
{
if (mouse_installed()) {
segread(&sregs);
mouse(6,0,0,0);
return regs.x.bx;
}
return 0;
}
/* ------ return true if mouse buttons are pressed ------- */
int mousebuttons(void)
{
if (mouse_installed()) {
segread(&sregs);
mouse(3,0,0,0);
return regs.x.bx & 3;
}
return 0;
}
/* ---------- return mouse coordinates ---------- */
void get_mouseposition(int *x, int *y)
{
*x = *y = -1;
if (mouse_installed()) {
mouse(3,0,0,0);
*x = regs.h.cx/8;
*y = regs.h.dx/8;
if (SCREENWIDTH == 40)
*x /= 2;
}
}
/* ----- set mouse travel limits ------- */
void set_mousetravel(int minx, int maxx, int miny, int maxy)
{
if (mouse_installed()) {
if (SCREENWIDTH == 40) {
minx *= 2;
maxx *= 2;
}
mouse(7, 0, minx*8, maxx*8);
mouse(8, 0, miny*8, maxy*8);
}
}
/* --------- hide the mouse cursor ------- */
void hide_mousecursor(void)
{
if (mouse_installed()) {
mouse(2,0,0,0);
}
}
/* --------- display the mouse cursor -------- */
void show_mousecursor(void)
{
if (mouse_installed()) {
mouse(1,0,0,0);
}
}
