Re: [perl-win32-gui-hackers] [win32-gui] Re: Grid Questions

[Robert M. <rm...@po...>]

Arthur Schwarz wrote:
> Thank you for doing what you're doing. There are some questions:
>    
>   1. When I tried an install Win32_GUI_1.04 to an activestate perl, TieRegistry was not defined (and in it's turn, Registry was not installed). Should this be part of the release notes?

Assuming that you mean Win32::TieRegistry and Win32::Registry packages,
then they are not a part of Win32::GUI.  I would, however, expect them
to be installed as part of an ActiveState Perl install.

>   2. In the example code below, AbsLeft and AbsTop do not work as (I) expected. AbsLeft moves the Y coordinate and AbsTop moves the X coordinate. I expected these coordinates to not change. Is my understanding correct?

[ snip code ]

Indeed, there seems to be a problem with AbsLeft and AbsTop, although 
it's not clear to me from either the documentation or the code what 
they're meant to do.  I would assume that they're meaning to set the 
window position in Screen co-ordinates, as they retrieve the screen 
co-ordinates, but then use them as client co-ordinates ...

In your example of AbsLeft(), the window moves down, as the top 
co-ordinate is read in screen co-ordinates, and then used as a client 
co-ordinate when setting the window position.

The code also looks like it might have been trying to leave the 
bottom-right corner of the window unmoved, although I think this is 
unlikely to what is expected.

I wouldn't expect the behaviour to be the same as the Left/Top methods, 
as if this was intended, then the implementation would, almost certainly 
have been done as an alias for Left/Top.

I've raised a bug report, which includes a short script showing the problem:
https://sourceforge.net/tracker/index.php?func=detail&aid=1578492&group_id=16572&atid=116572
and propose to 'fix' the behaviour of these 2 calls to be setting the 
co-ordinate of the window in screen co-ordinates.  Any objections?

Regards,
-- 
Robert May
Win32::GUI, a perl extension for native Win32 applications
http://perl-win32-gui.sourceforge.net/