Click on icon in TComboBox
lazarus / 31-LCL

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zamtmn · 2011-05-22 16:11

Hi all.

How to handle a click on the icon in the csOwnerDraw TComboBox? I need
to when click on the icon to prohibit the selection item is clicked or
collapse the list.

Sorry for my english((

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Blaazen · 2011-05-22 16:17

Quote...  I need to when click on the icon to prohibit the selection
item is clicked ...Do you mean something like CheckBoxes in TComboBox
?

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zamtmn · 2011-05-22 16:38

QuoteDo you mean something like CheckBoxes in TComboBox ?Yes, exactly.
CheckBoxes with other icons

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zamtmn · 2011-05-22 16:45

Something like this animated gif

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Blaazen · 2011-05-22 18:34

I think it is impossible with TComboBox.
The most similar thing I found in Lazarus: Tools -> Configure Build
Lazarus ... (done by THeaderControl + TListBox)
You will probably have to do it by combonation of TEdit + TListBox
(and you will show/hide TListBox).
Or possibly you can use one TStringGrid or TDrawGrid and change its
height (one row / more rows).
And of course you will have to draw your own icons using OnDrawItem
events.
At this time I have no idea for simplier solution.

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zamtmn · 2011-05-22 18:59

Thank you. I thought so ((.'ll try to make using TListBox