I want to create a new component in Delphi inherited from TDBLookupComboBox. My only question is, how can I replace the control which is shown when the ComboBox is dropped down and show a TCheckListBox instead? Is this a Win-Api combined with a popup? And how can I change the Popup look like a normal TWinControl? Thanks!
Delphi DbLookupComboBox with CheckListBox
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