我已经尝试添加额外的列.我已经尝试扩展PaintInfo.PaintRectangle.我已经尝试了我可以想到的Amount列中的每个设置.我没有想法

任何人有什么想法如何做到这一点？

这是自定义标题绘图的代码. (原谅与声明,不是我原来的代码….)

procedure TWinPOSReceiptPluginForm.ReceiptDisplayTreeAdvancedHeaderDraw(Sender: TVTHeader; var PaintInfo: THeaderPaintInfo;
  const Elements: THeaderPaintElements);
var
    TempText: string;
begin
    with PaintInfo do
    begin
      // First check the column member. If it is NoColumn then it's about the header background.

        if (hpeBackground in Elements) and (Column <> nil) then begin
          TempText := Column.Text;
          TargetCanvas.Brush.Color := $444444;
          TargetCanvas.FillRect(PaintRectangle);
          TargetCanvas.Font.Color := clWhite;
          TargetCanvas.Font.Style := [];
          TargetCanvas.TextOut (PaintRectangle.Left + 3,PaintRectangle.Top + 3,TempText);
          end;
    end;
end;