OpenEuphoria

Re: Win32Lib Pixmaps error

• Posted by Lewis Townsend <keroltarr at HOTMAIL.COM> Jul 24, 2000
• 448 views

Hello Matt, Brian,

>It looks like your procedure Dress() is passing a zero as its first param
>to
>setPixMap(), which is id in setPixmap().  Win32lib uses id as a subscript
>to
>find the handle of the pixmap (within the sequence window_handle), hence
>the
>subscript error.  Looks like the bug is coming from somewhere in your code.
>Probably just a typo somewhere.
>
>Matt Lewis

Thanks, yes, it was passing a zero. No, it wasn't a typo but
a blatant logic error. Here's the gist of it if any are
interested:

sequence s
for i = 1 to 32 do
  if first_iteration then
    s = repeat (0, 32)
    s [i] = create(pixmap) -- obviously only the first pixmap is set
  end if
  setPixmap (s[i])
end for

should have been:

sequence s
for i = 1 to 32 do
  if first_iteration then
    s = repeat (0, 32)
  end if
  s [i] = create(pixmap) -- obviously only the first pixmap is set
  setPixmap (s[i])
end for

OR

sequence s
s = repeat (0, 32)
for i = 1 to 32 do
  s [i] = create(pixmap) -- obviously only the first pixmap is set
  setPixmap (s[i])
end for

There was a reason for putting the initialization in the for-loop
just not a very good one. Thanks again for all the help.

later,
Lewis Townsend
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