API:FireDAC.Phys.ADSWrapper.TADSBLOBStream.Seek

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[–] Properties Type: function Visibility: public Source:

FireDAC.Phys.ADSWrapper.pas

FireDAC.Phys.ADSWrapper.hpp

Unit: FireDAC.Phys.ADSWrapper Parent: TADSBLOBStream

Delphi

function Seek(Offset: Longint; Origin: Word): Longint; override;
function Seek(const Offset: Int64; Origin: TSeekOrigin): Int64; override;

C++

virtual System::LongInt __fastcall Seek(System::LongInt Offset, System::Word Origin)/* overload */;
virtual __int64 __fastcall Seek(const __int64 Offset, System::Classes::TSeekOrigin Origin)/* overload */;
inline __int64 __fastcall  Seek(const __int64 Offset, System::Word Origin){ return System::Classes::TStream::Seek(Offset, Origin); }

Description

Moves to a specified position in the streamed resource. FireDAC.Phys.ADSWrapper.TADSBLOBStream.Seek inherits from System.Classes.TStream.Seek. All content below this line refers to System.Classes.TStream.Seek.

Moves to a specified position in the streamed resource.

Call Seek to move the current position of the stream in its particular storage medium (such as memory or a disk file).

The Origin parameter indicates how to interpret the Offset parameter. Origin should be one of the following values:

Value	Meaning
soBeginning	Offset is from the beginning of the resource. Seek moves to the position Offset. Offset must be >= 0.
soCurrent	Offset is from the current position in the resource. Seek moves to Position + Offset.
soEnd	Offset is from the end of the resource. Offset must be <= 0 to indicate a number of bytes before the end of the file.

Seek returns the new value of the Position property.

Seek is called by the Position and Size properties.

Note: As implemented in TStream, the two versions (32-bit and 64-bit syntax) call each other. Descendent stream classes must override at least one of these versions, and the override must not call the inherited default implementation.

See Also

• Position
• Size
• Using Streams
• Specifying the Stream Position and Size