unitfriendlist.pas

如何在Delphi下实现画面捕捉、传输、以及文件的传输原理

unit UnitFriendList;

interface

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

type
  TFmFriendList = class(TForm)
    ListBox: TListBox;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormShow(Sender: TObject);
    procedure ListBoxDblClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  FmFriendList: TFmFriendList;

implementation

uses UnitLogin,UnitThread,UnitChat;

{$R *.dfm}

procedure TFmFriendList.FormClose(Sender: TObject;
  var Action: TCloseAction);
begin
        //FriendListCB.StrKind := 'CLOSED';
        //FriendListCB.SendName := FmLogin.EdtQQ.Text;

        FmLogin.Close;
        FmChat.Close;
        FmThread.Close;
end;

procedure TFmFriendList.FormShow(Sender: TObject);
var
	FriendListCB : TCommBlock;
begin
        FmFriendList.Caption := FmLogin.EdtQQ.Text;

	FriendListCB.StrKind := 'FRDLIST';
        FriendListCB.SendName := FmLogin.EdtQQ.Text;

        try
        	FmThread.IdTCPClient.WriteBuffer(FriendListCB,SizeOf(FriendListCB));
        except
        	on e: exception do showmessage( 'there is a exception' + e.Message);
        end;
end;

procedure TFmFriendList.ListBoxDblClick(Sender: TObject);
begin
        //FmChat.Hide;
	FmChat.Show;
        FmChat.Caption := '与' + ListBox.Items[ListBox.ItemIndex] + '谈话中';
end;

end.