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DRKB - это самая большая и удобная в использовании база знаний по Дельфи в рунете, составленная Виталием Невзоровым

ASCII код для PrintScreen

01.01.2007
unit Unit1;
 
interface
 
uses
 
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 
Dialogs;
 
type
  TForm1
= class(TForm)
    procedure
FormCreate(Sender: TObject);
 
private
   
{ Private declarations }
    procedure
AppIdle(Sender: TObject; var Done: Boolean);
 
public
   
{ Public declarations }
 
end;
 
var
  Form1
: TForm1;
 
implementation
 
{$R *.dfm}
 
procedure TForm1
.AppIdle(Sender: TObject; var Done: Boolean);
begin
if GetAsyncKeyState(VK_SNAPSHOT) <> 0 then
    Form1
.Caption := 'PrintScreen ia?aoa !';
 
Done := True;
end;
 
procedure TForm1
.FormCreate(Sender: TObject);
begin
Application.OnIdle := AppIdle;
end;
end.

type
  TForm1
= class(TForm)
    procedure
FormCreate(Sender: TObject);
    procedure
FormDestroy(Sender: TObject);
 
private
   
{ Private declarations }
    procedure
WMHotKey(var Msg : TWMHotKey); message WM_HOTKEY;
 
public
   
{ Public declarations }
 
end;
 
var
  Form1
: TForm1;
 
implementation
 
{$R *.DFM}
 
const id_SnapShot = 101;
 
procedure TForm1
.WMHotKey (var Msg : TWMHotKey);
begin
 
if Msg.HotKey = id_SnapShot then
   
ShowMessage('GotIt');
end;
 
procedure TForm1
.FormCreate(Sender: TObject);
begin
 
RegisterHotKey(Form1.Handle,
                 id_SnapShot
,
                 
0,
                 VK_SNAPSHOT
);
end;
 
procedure TForm1
.FormDestroy(Sender: TObject);
begin
 
UnRegisterHotKey (Form1.Handle, id_SnapShot);
end;

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