>>>My client what to see better the focus in all my forms. In order to show the focus in a CBOBOX, she ask me to change the color of the drop down button only when it is in focus.
>>>
>>>I cannot find the property for this. Is there a setting in windows that can help?
>>
>>The color of the button is set in Windows Control panel. You can't change it.
>
>Thank you ! But I like to change the color only when the cboBox as the focus.

You can't change it.