Set bit to 0.
Source position: syshelph.inc line 942
public function TShortIntHelper.ClearBit(  | 
const Index: TShortIntBitIndex  | 
):ShortInt;  | 
ClearBit puts value 0 to bit number determined by argument Index.
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Set bit to 1.  | 
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Invert bit.  | 
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Check bit.  | 
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Return the position of the leftmost bit set.  | 
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Return the position of the rightmost bit set.  | 
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Count number of bits set.  | 
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Read or write a bit.  |