clnmain.pas

来自「DELPHI实现的快速屏幕截图并发送源代码」· PAS 代码 · 共 60 行

unit clnMain;

interface

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

type
  TForm1 = class(TForm)
    ScreenPlayer1: TScreenPlayer;
    procedure ScreenPlayer1HeaderUpdate(Sender: TObject);
    procedure ScreenPlayer1ScreenBitmap(Sender: TObject;
      const Block: TScreenBlock);
    procedure FormResize(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
    XRate, YRate: Extended;
    HasServer: Boolean;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.ScreenPlayer1HeaderUpdate(Sender: TObject);
begin
  HasServer:= True;
  XRate:= ClientWidth / ScreenPlayer1.ScreenWidth;
  YRate:= ClientHeight / ScreenPlayer1.ScreenHeight;
end;

procedure TForm1.ScreenPlayer1ScreenBitmap(Sender: TObject;
  const Block: TScreenBlock);
Var
  R: TRect;
begin
  R:= Rect(Round(Block.Bound.Left*XRate), Round(Block.Bound.Top*YRate), Round(Block.Bound.Right*XRate), Round(Block.Bound.Bottom*YRate));
  Canvas.StretchDraw(R, Block.BMP);
end;

procedure TForm1.FormResize(Sender: TObject);
begin
  If HasServer then
    ScreenPlayer1HeaderUpdate(Sender);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  HasServer:= False;
end;

end.