TBitConverter

TBitConverter

FromBcd  
FromByte  
FromCurrency  
FromDouble  
FromExtended  
FromInteger  
FromLargeInt  
FromLongBool  
FromLongInt  
FromLongWord  
FromShortInt  
FromSingle  
FromSmallInt  
FromSqlTimeStamp  
FromSqlTimeStampOffset  
FromVariant  
FromWord  
FromWordBool  

TBitConverter provides two main class functions:

• From converts a value in a Delphi native type into an array of bytes.
• InTo converts an array of bytes into a Delphi native type.

Data.DB.TBitConverter.FromCurrency

From RAD Studio API Documentation

 

FromCurrency From

• Up to Parent: TBitConverter

Delphi

class procedure FromCurrency(Value: Currency; Buffer: TArray<Byte>);

C++

__classmethod void __fastcall FromCurrency(System::Currency Value, System::DynamicArray<System::Byte> Buffer);
>>>>>>>

Delphi

class procedure From<T>(const Value: T; var B: TArray<Byte>; Offset: Integer = 0); static;

C++

void __fastcall TBitConverter::From(const T Value, System::DynamicArray<System::Byte> &B, int Offset)

 ToInteger InTo

Data.DB.TBitConverter.ToIntegerFrom RAD Studio API Documentation 

Delphi

class function ToInteger(Value: TArray<Byte>): Integer;

C++

__classmethod int __fastcall ToInteger(System::DynamicArray<System::Byte> Value);

System.Types.TBitConverter.InTo     From RAD Studio API Documentation 

Delphi

class function InTo<T>(const B: TArray<Byte>; Offset: Integer = 0): T;

static;C++

__fastcall TBitConverter::InTo(const System::DynamicArray<System::Byte> B, int Offset)

<T>必须是明确的类型 

Data := TBitConverter.InTo<double>(Buffer);