[lazarus] Programmatically showing the listbox of combobox

[Jesus Reyes]

Hi, I have noticed that sometimes (for example when clicking out of
the listbox) the DroppedDown property doesnt get updated. Also it
seems that the listbox doesnt get the keyboard focus when pop up.

While you are in this [ and if you have enought time ;)] could you
check if it is possible to trap all keyboard events before the
gtkwidget? It happen that TComboBox only have the keyboard control
when the itemindex=0 {VK_UP} or ItemIndex=Count-1 {VK_DOWN}.

In windows I was used to the ALT+DOWN hot key to dropdown the
listbox, in linux it seems it is not possible, which would be a
appropiated hotkey to this?.

I dont know if I need to make some adjustment somewhere, It seems
that Undo functionality is missing in Gtk (for TEdit)?

Thanks.

 --- hernan.et at pg.com escribió: > Hi Mattias,
> 
> If I understand it right, I have to set csdropdownlist and
> autodropdown property
> to drop the listbox automatically?
> 
> Regards,
> 
> Yoyong
> 
> 
> 
> 
> On Tue, 10 Jun 2003 07:43:27 +0800
> hernan.et at pg.com wrote:
> 
> > Hi Mattias,
> >
> > This one is not included in cvs.
> >
> > under protected section of TCustomComboBox
> >
> > procedure WMChar(var Message: TLMChar); message LM_CHAR;
> >
> > its implementation is
> >
> > Why need this one? Well, if csdropdonwlist is selected in the
> object
> > inspector, the listbox must dropdown if the user type some
> character in
> > the textbox entry.
> 
> In Delphi the csdropdonwlist style is defined as a combobox with
> readonly
> text field.
> Do you mean the AutoDropDown property?
> 
> 
> > procedure TCustomComboBox.WMChar(var Message: TLMChar);
> 
> The LCL tries to use methods instead of messages. I overrode the
> KeyDown
> method. Maybe you can have a look.
> 
> 
> > Please forgive me again this time for not sending a patch file.
> 
> I forgive. ;)
> Any help is welcome.
> 
> 
> Mattias
> 
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