可以, unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;type TForm1 = class(TForm) Button1: TButton; procedure FormCreate(Sender: TObject); procedure FormClose(Sender: TObject; var Action: TCloseAction); procedure Button1Click(Sender: TObject); private { Private declarations } public { Public declarations } end;var Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject); var temp:integer; begin systemparametersinfo(spi_screensaverrunning,1,@temp,0); //限制功能键 formstyle:=fsstayontop; windowstate:=wsmaximized; end;procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction); var temp:integer; begin systemparametersinfo(spi_screensaverrunning,0,@temp,0);//取消对功能键的限制 end;procedure TForm1.Button1Click(Sender: TObject); begin close; end;end.
没有的,用这个函数:procedure CreateParams(var Param: TCreateParams); override;///——————*使桌面按钮无效*——————////// procedure TLoginForm.CreateParams(var Param: TCreateParams); begin inherited; with Param do begin EXStyle := ExStyle or WS_EX_TOPMOST or WS_EX_ACCEPTFILES OR WS_EX_TOOLWINDOW; WndParent := GetDesktopWindow; end; end;
unit Unit1;interfaceuses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;type
TForm1 = class(TForm)
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.dfm}procedure TForm1.FormCreate(Sender: TObject);
var temp:integer;
begin
systemparametersinfo(spi_screensaverrunning,1,@temp,0);
//限制功能键
formstyle:=fsstayontop;
windowstate:=wsmaximized;
end;procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
var temp:integer;
begin
systemparametersinfo(spi_screensaverrunning,0,@temp,0);//取消对功能键的限制
end;procedure TForm1.Button1Click(Sender: TObject);
begin
close;
end;end.
procedure TLoginForm.CreateParams(var Param: TCreateParams);
begin
inherited;
with Param do
begin
EXStyle := ExStyle or WS_EX_TOPMOST or WS_EX_ACCEPTFILES OR WS_EX_TOOLWINDOW;
WndParent := GetDesktopWindow;
end;
end;