[Lazarus] IDE + GTK2 widgetset + Compiz enabled = Incorrect WM Hints

[Michael Van Canneyt]

On Fri, 17 Jul 2009, Paul Ishenin wrote:

> Graeme Geldenhuys wrote:
>> For the first time in ages I decided to enabled Compiz (Ubuntu 8.0.4.2 + 
>> Gnome Desktop). I only have the Normal Effects enabled - that is already 
>> more effects than I can handle. ;-)
>> 
>> Anyway, I noticed that if you type 'try' & Ctrl+J in enable the Code 
>> Templates popup menu, that the wrong Compiz animation is used. It uses the 
>> standard Window animation and not the Popup Menu or Popup Window animation.
>> 
>> '_NET_WM_WINDOW_TYPE_POPUP_MENU' or ''_NET_WM_WINDOW_TYPE_MENU' needs to be 
>> set somewhere in the GTK2 widgetset layer for that window.
>> 
>> Another issue is when you type a partial name of a unit and press 
>> Ctrl+Space  or  Ctrl+W   to do name or word completion. The same issue 
>> appears with that popup menu.
>> 
>> This is not a issue with all popup menus though. Right clicking on the 
>> editor to bring up its popup menu, the animation effect is correct. Same 
>> thing when you right click in any edit component.
>> 
>> So it seems just the Code Templates popup menu is wrong.
> LCL does not have popup forms. And Code Templates window is not a popup menu.
>
> I suspect everything else wors ideally in lazarus for you if you want we fix 
> that serious problems :)

The problem is deeper than you may expect: the popup hints don't work at all under 
OpenBox window manager, when in all other apps they seem to work fine.

I'm not saying that this is a Lazarus/LCL problem, but the problem of Window-Manager
hints is obviously not a trivial one :(

Michael.