Mail Archives: djgpp/1997/01/22/08:28:06
From: | "Don" <6dcb AT qlink DOT queensu DOT ca>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | The mouse thing again.
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Date: | 22 Jan 1997 00:34:51 GMT
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Organization: | Queen's University, Kingston
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Lines: | 38
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Message-ID: | <01bc07fb$c28c6da0$a3f80f82@default>
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NNTP-Posting-Host: | toll2-slip163.tele.queensu.ca
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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I'd like to thank everyone who responded to my question about the mouse.
Someone suggested that I give a brief snippet of code showing my problem so
here it goes.
*/
#define MAXX 320 // default coordinates for mode X
#define MAXY 240
// Global mouse structure m
/* 1-319 returned to mx
1-239 returned to my
*/
struct m_type{
signed int mx, my;
}m;
// Get all mouse position using relative mouse position function 11
void mouse(void) {
union REGS mou;
mou.x.ax = 0x0b;
int86(0x33, &mou, &mou);
m.mx+=mou.x.cx;
m.my+=mou.x.dx;
if(m.mx>MAXX)
m.mx=MAXX;
if(m.my>MAXY)
m.my=MAXY;
if(m.mx<1)
m.mx=1;
if(m.my<1)
m.my=1;
}
Basically the problem is that this works fine under other dos compilers,
but not in djgpp. Why? btw. This is a great way to program the mouse
because you get 1 pixel accuracy.
- Raw text -