Navigation: ABC Library Reference > FileManager > FileManager Methods >====== SaveBuffer (save a copy of the record buffer)  ====== |    |
SaveBuffer
The SaveBuffer method saves a copy of the managed file's record buffer contents (the Buffer property) and returns a number that uniquely identifies the saved record. SaveBuffer stores buffer contents for subsequent retrieval by the RestoreBuffer method.
Implementation:
SaveBuffer saves MEMO contents as well as other fields.
SaveBuffer allocates memory which is subsequently released by the RestoreBuffer method. Therefore, to prevent a memory leak, each call to SaveBuffer should be paired with a corresponding call to RestoreBuffer.
Return Data Type: USHORT
Example:
FileManager.SaveFile PROCEDURE
Id LONG,AUTO
I SHORT,AUTO
CODE
Id = RECORDS(SELF.Saved)
IF Id
GET(SELF.Saved,Id)
ASSERT(~ERRORCODE())
Id = SELF.Saved.Id + 1
ELSE
Id = 1
END
SELF.Saved.Id = Id
SELF.Saved.Buffer = SELF.SaveBuffer()
SELF.Saved.Key &= SELF.File{PROP:CurrentKey}
SELF.Saved.WHeld = SELF.File{PROP:Held}
SELF.Saved.WWatch = SELF.File{PROP:Watched}
IF SELF.Saved.Key &= NULL
SELF.Saved.Pos = POSITION(SELF.File)
ELSE
SELF.Saved.Pos = POSITION(SELF.Saved.Key)
END
ADD(SELF.Saved)
RETURN Id
See Also: Buffer, Buffers, RestoreBuffer