TCustomDBGrid.PrepareCanvas procedure
Prepares the Canvas to render the specified cell with the drawing state in aState.
Declaration
procedure PrepareCanvas(aCol: Integer; aRow: Integer;
aState: TGridDrawState); overrideArguments
aCol | Column number for the cell. |
aRow | Row number for the cell. |
aState | Grid draw state for the cell. |
Description
PrepareCanvas is an overridden method in TCustomDBGrid. It ensures
that the
Canvas is configured to use the drawing state in
aState. PrepareCanvas calls the inherited PrepareCanvas method,
and sets the brush color in the Canvas to the value needed for fixed or
focused / selected columns.
PrepareCanvas is called from the DrawCell method. It occurs before default drawing is performed, and before the OnDrawColumnCell or OnDrawColumnTitle event handlers are signalled.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.