From:	Peter Schaefer <schaefer AT malaga DOT math DOT uni-augsburg DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Double Click
Date:	Fri, 16 May 1997 18:09:35 +0200
Organization:	http://malaga.math.uni-augsburg.de/schaefer/
Distribution:	world
Message-ID:	<337C86BF.41C6@malaga.math.uni-augsburg.de>
References:	<01bc61a3$40e5d960$46c074cf AT ian>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Ian Pitt wrote:
> 
> I am writing a mouse routine using DJGPP but I am having trouble
> implementing detection of a Double Click.  Does anybody have any
> suggestions?

There are two ways I noticed this is done:
- the double click is always preceded by a single click
  This has the drawback that the application must not do anything
  that can't be undone fast.
- specify a delay before the system decides what kind of click it is.
  This annoy the user with delays.

Perhaps best would be to have a sth. that gives out
3 kinds of messages for this:
Event		Time		Message
Mouseclick	T+0		MouseClick 
Mouseclick	T<DoubleCLickT	DoubleClick
TimerExpired	T=DoubleClickT  SingleClick

-- 
Peter Schaefer              
mailto:schaefer AT malaga DOT math DOT uni-augsburg DOT de     

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