Fwd: Re: Calling function w/ multiple parameters

[ajam <ajam erols com>]

----------  Forwarded Message  ----------
Subject: Re: Calling function w/ multiple parameters
Date: Wed, 3 Jun 1998 21:19:05 -0400
From: ajam <ajam@erols.com>


On Wed, 03 Jun 1998, you wrote:
>Continuing my previous message, I opted to use a pointer to a
>structure to pass all the parameters to my function through
>the use of the fourth argument of "gtk_signal_connect()",
>which is actually expecting a "gpointer".  Well, it doesn't
>work.  No surprise here.  Is there a Macro or other method
>in order to be able to send this pointer to the function?
>
>Thanks, ajam.
>
>
>Michael J. Hammel wrote:
>
>> In a previous message, ajam says:
>> > How can I use "gtk_signal_connect()" to call
>> > a function that contains three or more parameters,
>> > which are not necessarily related to the object
>> > (widget) included in the 'signal handler'
>>
>> Theres really only one way to do this.  The signal handler has a defined
>> set of parameters, so you call a "dummy" callback that is used to call your
>> function (the one with multiple parameters).  There might be trickier ways
>> to do this, but this is the most straightforward.  If you need to pass data
>> to your function then use the client_data argument of the
>> gtk_signal_connect() call.
>>
>> --
>> Michael J. Hammel           |Webster's definition of Win95: 32bit extensions and
>> The Graphics Muse           |graphical shell for a 16bit patch to an 8bit OS
>> mjhammel@graphics-muse.org  |originally coded for a 4bit cpu, written by a 2 bit
>> http://www.graphics-muse.org  company, that can't stand 1 bit of competition.
>>
>> --
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