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IsBottom  
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Return if Alignment is a bottom alignment constant.
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IsCenter  
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Return if Alignment is a center alignment constant.
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IsLeft  
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Return if Alignment is a left alignment constant.
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IsMiddle  
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Return if Alignment is a vertical center alignment constant.
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IsRight  
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Return if Alignment is a right alignment constant.
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IsTop  
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Return if Alignment is a top alignment constant.
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Make  
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Return an alignment constant from its horizontal and vertical parts.
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