TMemDataset.GetBookmarkFlag function

Declaration

function GetBookmarkFlag(Buffer: TRecordBuffer): TBookmarkFlag
 ; override

Arguments

Function result

BookmarkFlag for the specified record buffer.

Description

GetBookmarkFlag is used to get BookmarkFlag data from the specified record buffer. Bookmark flags are an internal mechanism which provide status information for the record, such as:

bfCurrent

Record is currently selected in the dataset

bfBOF

Record is at the Beginning-of-File

bfEOF

Record is at the End-of-File

bfInserted

Record has been inserted

GetBookmarkFlag examines the byte values in Buffer starting at the offset for record information. The values are cast to a PRecInfo record type which provides access to the Bookmark and BookmarkFlags for the record. The return value contains the TBookmarkFlag in the byte values.

GetBookmarkFlag implements the virtual method from the ancestor class. It is called from the BookmarkAvailable and SetCurrentRecord methods.

See also

• TDataset.BookmarkAvailable
• TDataset.SetCurrentRecord
• TBookmarkFlag