像这样如何将OK按钮更改为倒数计时器...
5,4,3,2,1,0 [MsgBox自动关闭]不显示0
继续进行设置过程。
该按钮不应是可单击的并褪色。就像无效的窗口/按钮/框。
这个:
不是这个:
我使用来自以下问题的代码:如何显示指定时间的消息框?
此类功能没有内置功能。无论是在Inno Setup中,还是在WinAPI中。
您必须自己实现对话框,并使用计时器来实现倒计时。
[Code]
function SetTimer(hWnd: LongWord; nIDEvent, uElapse: LongWord;
lpTimerFunc: LongWord): LongWord; external '[email protected] stdcall';
function KillTimer(hWnd: HWND; uIDEvent: LongWord): BOOL;
external '[email protected] stdcall';
var
CountdownButton: TNewButton;
Countdown: Integer;
procedure UpdateCountDownButtonCaption;
begin
CountdownButton.Caption := Format('%d sec', [Countdown]);
end;
procedure CountdownProc(H: LongWord; Msg: LongWord; IdEvent: LongWord; Time: LongWord);
begin
Dec(Countdown);
if Countdown = 0 then
begin
CountdownButton.Enabled := True;
TForm(CountdownButton.Parent).Close;
end
else
begin
UpdateCountDownButtonCaption;
end;
end;
procedure CountdownMessageBoxCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
{ Prevent the dialog from being close by the X button and Alt-F4 }
CanClose := CountdownButton.Enabled;
end;
procedure CountdownMessageBox(Message: string; Seconds: Integer);
var
Form: TSetupForm;
MessageLabel: TLabel;
Timer: LongWord;
begin
Form := CreateCustomForm;
try
Form.ClientWidth := ScaleX(256);
Form.ClientHeight := ScaleY(96);
Form.Caption := 'Information';
Form.Position := poMainFormCenter;
Form.OnCloseQuery := @CountdownMessageBoxCloseQuery;
MessageLabel := TLabel.Create(Form);
MessageLabel.Top := ScaleY(16);
MessageLabel.Left := ScaleX(16);
MessageLabel.AutoSize := True;
MessageLabel.Caption := Message;
MessageLabel.Parent := Form;
if CountdownButton <> nil then
RaiseException('Countdown in progress already');
Countdown := Seconds;
CountdownButton := TNewButton.Create(Form);
CountdownButton.Parent := Form;
CountdownButton.Width := ScaleX(88);
CountdownButton.Height := ScaleY(26);
CountdownButton.Left := Form.ClientWidth - CountdownButton.Width - ScaleX(18);
CountdownButton.Top := Form.ClientHeight - CountdownButton.Height - ScaleX(11);
UpdateCountDownButtonCaption;
CountdownButton.Name := 'CountdownButton';
CountdownButton.ModalResult := mrOk;
CountdownButton.Default := True;
CountdownButton.Enabled := False;
Timer := SetTimer(0, 0, 1000, CreateCallback(@CountdownProc));
try
Form.ShowModal();
finally
KillTimer(0, Timer);
end;
finally
Form.Free();
CountdownButton := nil;
end;
end;
对于CreateCallback
功能,您需要Inno Setup6。如果您坚持使用Inno Setup 5,则可以使用InnoTools InnoCallback库中的WrapCallback
功能。
像这样使用它:
CountdownMessageBox('Message here', 10);
相关问题:
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