Combobox don´t let form have its keypreview...

Hello there, I have got a problem with the simple combobox control. If I set the form to keypreview = true, I can easily catch the input of the controls for specific keystrokes, which I need for complex form navigation. But it seems that the combobox don´t let the form have any keystrokes. Is there a nice workaround? with best regards, Walter

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