rptfm.pas

库房管理系统

unit rptFM;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TreportFM = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Label1: TLabel;
    Label2: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  reportFM: TreportFM;

implementation

{$R *.dfm}

procedure TreportFM.Button1Click(Sender: TObject);
var
  LineNum:longint;
  CharsBeforeLine:longint;
begin
  LineNum := SendMessage(Memo1.Handle,EM_LINEFROMCHAR,
  Memo1.SelStart,0);
  CharsBeforeLine:=SendMessage(Memo1.Handle,EM_LINEINDEX,
  LineNum,0);
  Label1.Caption:='Line: '+IntToStr(LineNum + 1);
  Label2.Caption:='Position: '+IntToStr((Memo1.SelStart -
  CharsBeforeLine)+1);
end;

end.