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 thread  Author  Topic: Using the Mouse  (Read 431 times)
basscott
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xx Using the Mouse
« Thread started on: Oct 7th, 2015, 08:51am »
I am new to BBC Basic and have an issue using the mouse.

I use the following to get the co-ordinates when I click the mouse and this works OK: -

REPEAT
MOUSE X,Y,BUTTON%
UNTIL BUTTON%

I then use X and Y to determine where in the window the mouse is pointing to in order to carry out some simple code - I then go to another part of the program where I repeat the above code to get a 2nd location when I click the mouse.

The issue I have is that the values of X and Y remain the same as the first click and don't seem to get overwritten by the details from the 2nd click; in fact the program doesn't seem to wait for the mouse to be clicked on the 2nd occasion.

I'm probably misunderstanding the way that this functionality works - any help please ?
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basscott
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xx Re: Using the Mouse
« Reply #1 on: Oct 7th, 2015, 08:53am »
that should be : -

UNTIL BUTTON%<>0
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DDRM
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xx Re: Using the Mouse
« Reply #2 on: Oct 7th, 2015, 09:34am »
Hi Basscott,

I think the problem is that there are usually a stream of responses sitting in the mouse buffer (usually about half a dozen or so from a single click). I usually end any mouse-handling routine with...
Code:
REPEAT MOUSE x%,y%,z%
UNTIL z%=0

...which empties the buffer.
Hope that helps!

D
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number6
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xx Re: Using the Mouse
« Reply #3 on: Oct 7th, 2015, 11:07am »
Hi basscott
Thanks for asking that particular question and thanks also to DDRM for his reply. I had a similar problem and DDRM's solution is exactly what was needed.!
« Last Edit: Oct 7th, 2015, 11:08am by number6 » User IP Logged
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basscott
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xx Re: Using the Mouse
« Reply #4 on: Oct 7th, 2015, 2:49pm »
Perfect - resolved the issue completely.

Thanks a lot - saved my sanity.
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