TCustomMemoryStream class
Abstract stream that stores its data in memory.
Declaration
TCustomMemoryStream = class(TStream)Inheritance
Descends from it: TLazarusResourceStream TMemoryStream TResourceStream
Description
TCustomMemoryStream is the parent class for streams that stored
their data in memory. It introduces all needed functions to handle reading
from and navigating through the memory, and introduces a
Memory property which points to
the memory area where the stream data is kept.
The only thing which TCustomMemoryStream does not do is obtain
memory to store data when writing data or the writing of data. This
functionality is implemented in descendant streams such as TMemoryStream. The reason for this approach is that this way it is
possible to create e.g. read-only descendants of
TCustomMemoryStream that point to a fixed part in memory which
can be read from, but not written to.
TCustomMemoryStream is an abstract class, do not create
instances of TMemoryStream directly. Instead,
create instances of descendants such as TMemoryStream.
See also
Properties
Memory | public | Pointer to the data kept in the memory stream. |
SizeBoundsSeek | public |
Methods
GetSize | protected | return the size of the stream. |
GetPosition | protected | |
SetPointer | protected | Sets the internal memory pointer and size of the memory block. |
Read | public | Reads Count bytes from the stream into buffer. |
Seek | public | Sets a new position in the stream. |
SaveToStream | public | Writes the contents of the memory stream to another stream. |
SaveToFile | public | Writes the contents of the stream to a file. |
Inherited
From TObject (42)
AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance Create DefaultHandler DefaultHandlerStr Destroy Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.