Hi Wendell
Having just stared at some of my code for a little while, I think this might
be a bug on my part! Basically there is a memory leak of cloned windows for
each button. These are released in any case when the dialog is disposed, but
if you re-initialized lots of buttons in the way you are doing, then you
could run out of resources whilst the window was still open - possibly this
happens sooner on windows than linux.
Anyway, the fix is very simple and I'll put it in CVS (gui/component.icn).
I'll send you a copy of the file.
One other thing - I'd change the code in your loop to the following, which is
a bit better, because attribs set via set_attribs actually accumulate in a
list
button[index].attribs := [ "bg=" || color, "fg=black" ]
button[index].finally()
button[index].init()
button[index].invalidate()
On Tuesday 05 September 2006 17:52, Wendell Turner wrote:
> I'm having trouble porting a working gui/modal program from
> Linux to Windows. It runs fine on Linux, and runs for a while
> on Windows, but ends up with the following error:
>
> gui__center_string(&null,105,57,"N40",&null) from line 43 in
> textbutton.icn TextWidth(&null,"N40") from line 205 in guiprocs.icn
>
> It seems to occur in the following loop:
>
> while *(q := select(udp_port,2)) > 0 do
> every f := !q do
> {
> r := receive(f)
> ...
> button[index].attrib( "bg=" || color, "fg=black" )
> button[index].set_attribs( "bg=" || color, "fg=black" )
> button[index].finally()
> button[index].init()
> button[index].resize()
> }
>
> When several udp msgs are received together, requiring several
> buttons to change color, after the loop exits (and processing
> goes back to the modal event loop?), the error occurs. When one
> message is received (alone), and only one button changes color,
> it seems to work fine.
>
> (I'm not sure about the finally, init, or resize, but calling
> them makes the button color take effect.)
>
> Full error text is at http://www.halcyon.com/wturner/windows_error_msg.txt
>
> Any suggestions?
>
> Wendell
>
>
>
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