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Slate compilation issue on OS X

I need to know whether a SpinBox is in a text editing state for a virtual keyboard implementation. The only way I've found is to inherit from SSpinBox and provide a function that returns this information (the existing function is protected). This works fine on Windows, but I can't get my very simple Slate widget compiled on OS X. This is the whole code:

 #pragma once
 #include "SSpinBox.h"
 template<typename NumericType>
 class SEnhancedSpinBox
     : public SSpinBox<NumericType>
     bool IsKeyboardEditing()
         return IsInTextMode();

Compilation fails with the message: "SEnhancedSpinbox.h:16:10: Use of undeclared identifier 'IsInTextMode'". If I try to copy the code from SSpinBox::IsInTextMode() instead of calling it, I get the same problem with undeclared members of SSpinBox. Again, all of this works fine in Windows, what could be the problem?

Product Version: UE 4.13
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asked Nov 06 '16 at 05:03 PM in C++ Programming

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