From: boylesgj AT lion DOT cs DOT latrobe DOT edu DOT au (Gregary J Boyles)
Newsgroups: comp.lang.c++,comp.lang.c,comp.os.msdos.djgpp,comp.os.msdos.programmer,alt.msdos.programmer
Subject: Detecting mouse double click.
Date: 30 Sep 1996 09:58:59 GMT
Organization: Comp.Sci & Comp.Eng, La Trobe Uni, Australia
Lines: 35
Distribution: world
Message-ID: <52o5l3$ft1@lion.cs.latrobe.edu.au>
NNTP-Posting-Host: lion.cs.latrobe.edu.au
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Compiler : Borland C++

const int TimeOut=1000;
int Timer=0;

Poll mouse driver;

if button pressed
{
  bool Done=false;
  do
  {
    Poll mouse driver;

    if same button pressed
    {
      double click;
      Done=true;
    }
    else if (Timer==TimeOut)
      Done=true;
    else
    {
      Timer++;
    }
  }
  while (!Done);
}

When a program containing the above loop is run and the mouse button is 
double clicked the program sometimes hangs. I can easily show that it is
not stuck in any of my loops.

Does polling the mouse continually in quick succession cause any known 
problems with mouse drivers?