unit1.~pas

最简单的进程之间通讯

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    edt1: TEdit;
    btn1: TButton;
    edt2: TEdit;
    lbl1: TLabel;
    procedure FormMouseMove(Sender: TObject; Shift: TShiftState; X,
      Y: Integer);
  private
    { Private declarations }
    procedure Mymessage(var t:TWmCopyData);message WM_COPYDATA;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.FormMouseMove(Sender: TObject; Shift: TShiftState; X,
  Y: Integer);
begin
  ReleaseCapture;
  SendMessage(Handle,WM_SYSCOMMAND,$f012,0);
end;

procedure TForm1.Mymessage(var t: TWmCopyData);
begin
  edt1.text:=StrPas(t.CopyDataStruct^.lpData);
end;

end.