Re: URL Access Scripting-Form Data
Re: URL Access Scripting-Form Data
- Subject: Re: URL Access Scripting-Form Data
- From: Timothy Bates <email@hidden>
- Date: Fri, 06 Sep 2002 11:02:32 +1000
>
I guess my question was really "How does the CGI (generically)
>
know "which" button was pressed in the form, since there can be
>
more than one, and how do I emulate that if I'm scripting with URL
>
Access Scripting?"
Forms never use more than one image if information about the click location
is needed for all the images.
>
I thought it would have to do with a value that I needed but couldn't
>
seem to find to pair with the button's name, in this case
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"categories".
If the image button is simply acting as an enticing graphic to cause the
user to submit the form, then you can just ignore it.
>
I was unaware of the x/y coordinates that are
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submitted.
That is the key concept.
>
Is that how the CGI's distinguish which button is
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pressed?
Well it is obvious to the cgi, because only one image (with its own unique
name) will come in on the get or post data stream.
>
How would they know what the coordinates mean since
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the coordinates can be very different based on the particular
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browser window, platform, etc.? What should I use in my script in
>
place of actually clicking on a button?
The coordinates are in pixels and the window and platform are therefore
irrelevant.
FYI, if you are using php, it converts the x and y coordinates from
name.x and name.y to name_x and name_y
("." is an illegal character within a variable name)
tim
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