controlcommand and non-standard controls

[cag8f]

I have a combo box which may or may not be a non-standard windows control. I can succesfully use controlcommand with the "showdropdown" option on it. Can I assume because one controlcommand option works on it, they *all* will work? Or do non-standard windows controls behave curiously, in that some controlcommands will work and some won't?

[Zedna]

In such case try Combobox UDF

#Include <GuiComboBox.au3>

or

#Include <GuiComboBoxEx.au3>

Details in helpfile

[cag8f]

OK thanks. As a diagnostic I tried to get _GUICtrlComboBoxEx_ShowDropDown() to show the menu of the combo box. The entire script is:

#include <GuiComboBoxEx.au3>

_GUICtrlComboBoxEx_ShowDropDown($handle, True)

Exit

For $handle I specified the "Handle" of the combobox, as returned by the AutoIt Info tool. However nothing happens when I run the script. Am I correct that this should show the menu of the combobox? Please let me know if I'm doing anything wrong as far as syntax or operation.