RAD Studio VCL Reference
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TReader.ReadSignature Method
TReader Class | TReader Members | Classes Namespace | Description | See Also
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Reads the filer signature from the reader object's associated stream.

Pascal
procedure ReadSignature;
C++
__fastcall ReadSignature();
Description

ReadSignature is used by several routines to ensure that the file about to be read is a valid component stream. For example, ReadRootComponent, calls ReadSignature before reading its component from the stream. By checking for the signature before loading objects, the reader object can guard against inadvertently reading invalid or corrupted data. 

The signature is a four-character sequence. 

 

See Also
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