OpenEuphoria

Re: Scrollbar range in win32

• Posted by David Cuny <dcuny at LANSET.COM> Jan 23, 2000
• 499 views

Judith Evans wrote:

> Scrollbar range in win32...

A number of people have reported problems with the scrollbar - the range is
apparently now starting at zero instead of 1, and other issues. I suspect
the two are related.

I'm not sure why it broke, since none of the changes directly effected the
scrollbar. I haven't had a chance to look at the code yet. I'm beginning to
wonder if I botched something on a global level, since I can't think of why
command_exec() would break, either.

BTW, I suspect the reason the button in the ToolBar is triggering twice is
because it's sending messages to all it's parents:

   button -> toolbar -> parent window

If this is the case, it may be causing problems if there is a group control:

   button -> group control -> parent window

or any place that a control is embedded in another, since I added code so
that the tab control could trap messages. I suspect that *all* controls that
rely on WM_COMMAND messages may end up triggering twice. Adding a test to
make sure the reciever of the WM_COMMAND message is really the parent should
prevent retriggering.

Thanks!

-- David Cuny