Setting TDBLookupComboBox to blank in c++
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I am using a TDBLookupComboBox in Embarcadero C++ Builder to list some fields from a DataBase, but I need to have the option of setting the selected value "TDBLookupComboBox ->Text" to be empty. I need this because I have other components connected to the ComboBox and I will need to be able to send either the value pulled from the DataBase OR nothing.

I looked at the win32 API SendMessage function, but as TDBLookupComboBox doesn't inherit from ComboBox, I am out of luck. Does anybody have an implementation for this?