function VarFMTBcd: TVarType;
extern DELPHI_PACKAGE System::Word __fastcall VarFMTBcd(void);
Returns the TVarType constant that identifies the internal type of a Variant as a TBcd value.
The Variant type codes for custom Variants are dynamically allocated when the application loads the unit that implements them. VarFMTBcd allows the application to identify the Variant type code that is currently used for custom Variants that represent a BCD value. This type code, however, may not match the type code used by another application that uses a different set of custom Variant types.