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CRegistry:SetNum
The SetNum method saves a numeric value to a Registry key.
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 CRegistry:SetNum( sName, nValue ) 
 
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The following script opens a key specified by sKeyName and saves a numeric value to the Registry under the name "MyVal":
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 R = CRegistry:Open( sKeyName )  | 
 -- open the key and create a CRegistry object  | 
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 R:SetNum( "MyVal", 53.412 )  | 
 -- saves the value 53.412 under the name "MyVal"  |