Re: MI Capturing Coordinates

[Bob Young - www.bydesignwales.demon.co.uk]

Dear Keith

What you ask in your Email is possible - although I agree MapBasic is a
bit restricted.

I have a few apps that work like you mention - I must admit I got the
idea from AutoCAD and AEC. With these products if you select a button
that contains a < on it, the dialog temporarily disappears and the user
selects a point on the map. In your handler for the button with the < on
it set up a temp custom tool button. The handler of this gets the X and
Y using CommandInfo(CMD_INFO_X) and same for Y. This handler can then
store these values and put the dialog back up on the screen ( and delete
itself! ) . ( In your case it sounds like you don't want the dialog back
up so its simpler.

Although it can be done, the biggest limitation is interaction when the
users gives more than one point with a DM_CUSTOM_ polyline or region.
Map X is a much better environment for these sorts of problems.


Regards


Bob
www.bydesignwales.demon.co.uk



In message <1951E5B13C0D@TELFORD>, Keith Campbell
<[EMAIL PROTECTED]> writes
>Dear All,
>
>Is it possible to capture the map coordinates of a user selected 
>(by mouse-click) point?
>I realise that the CommandInfo() function will return this 
>information from within a custom ToolButton handler but it seems odd 
>that this functionality is so restricted. I wish to capture this 
>information after the user has dismissed a dialog box by picking 
>'OK' and then clicks a point on-screen. Surely this must be possible?
>Any help will be much appreciated.
>
>Keith
>
>Keith Campbell
>GIS Consultant
>W S Atkins Consultants Ltd
>UK
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-- 
Bob Young - www.bydesignwales.demon.co.uk
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