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 Returns the decimal (base 10) value of a hexadecimal (base 16) number. 
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 Syntax: 
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 HVal(string) 
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 Parameters: 
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 string: An Alpha string that represents a hexadecimal (base 16) number. 
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 Returns: 
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 A numeric value 
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 Example: 
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 HVal('FF') returns 255. HVal('10') returns 16. 
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 Note: 
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 Results are left justified. 
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 See also: 
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 HStr 
The Online and Rich Client Samples projects (program CV10 and RCV10) 
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