Prevents deselecting the selected item in single-selection listbox. Also generate correct events in the multi-selection case by reusing the existing wxListBoxBase::CalcAndSendEvent() method. Closes #15603.
Prevents deselecting the selected item in single-selection listbox. Also generate correct events in the multi-selection case by reusing the existing wxListBoxBase::CalcAndSendEvent() method. Closes #15603.