ウィザード ページにボタンを作成しました。しかし、このシリアルフォームページにそのボタンを表示したいだけです。これで、ボタンはすべてのウィザード ページに表示されます。シリアル ページだけに表示するにはどうすればよいですか?
これは、シリアル フォーム ページに使用したコードです。
[Code]
enter code here function SetFocus(hWnd: HWND): HWND;
external 'SetFocus@user32.dll stdcall';
function OpenClipboard(hWndNewOwner: HWND): BOOL;
external 'OpenClipboard@user32.dll stdcall';
function GetClipboardData(uFormat: UINT): THandle;
external 'GetClipboardData@user32.dll stdcall';
function CloseClipboard: BOOL;
external 'CloseClipboard@user32.dll stdcall';
function GlobalLock(hMem: THandle): PAnsiChar;
external 'GlobalLock@kernel32.dll stdcall';
function GlobalUnlock(hMem: THandle): BOOL;
external 'GlobalUnlock@kernel32.dll stdcall';
var
SerialPage: TWizardPage;
SerialEdits: array of TEdit;
const
CF_TEXT = 1;
VK_BACK = 8;
SC_EDITCOUNT = 6;
SC_CHARCOUNT = 5;
function GetClipboardText: string;
var
Data: THandle;
begin
Result := '';
if OpenClipboard(0) then
try
Data := GetClipboardData(CF_TEXT);
if Data <> 0 then
Result := String(GlobalLock(Data));
finally
if Data <> 0 then
GlobalUnlock(Data);
CloseClipboard;
end;
end;
function TryPasteSerialNumber: Boolean;
var
S: string;
I: Integer;
J: Integer;
Delimiter: string;
begin
Result := True;
Delimiter := '-';
S := GetClipboardText;
if Length(S) <> ((SC_EDITCOUNT * SC_CHARCOUNT) +
((SC_EDITCOUNT - 1) * Length(Delimiter))) then
Exit;
for I := 0 to GetArrayLength(SerialEdits) - 1 do
begin
J := (I * SC_CHARCOUNT) + (I * Length(Delimiter)) + 1;
SerialEdits[I].Text := Copy(S, J, SC_CHARCOUNT);
end;
end;
function GetSerialNumber(const ADelimiter: Char): string;
var
I: Integer;
begin
Result := '';
for I := 0 to GetArrayLength(SerialEdits) - 1 do
Result := Result + SerialEdits[I].Text + ADelimiter;
Delete(Result, Length(Result), 1);
end;
procedure OnSerialEditChange(Sender: TObject);
var
CanContinue: Boolean;
begin
CanContinue := GetSerialNumber('-') = 'my serial';
WizardForm.NextButton.Enabled := CanContinue;
end;
procedure OnSerialEditKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
var
Edit: TEdit;
EditIndex: Integer;
begin
Edit := TEdit(Sender);
EditIndex := Edit.TabOrder - SerialEdits[0].TabOrder;
if (EditIndex = 0) and (Key = Ord('V')) and (Shift = [ssCtrl]) then
begin
if TryPasteSerialNumber then
Key := 0;
end
else
if (Key >= 32) and (Key <= 255) then
begin
if Length(Edit.Text) = SC_CHARCOUNT - 1 then
begin
if EditIndex < GetArrayLength(SerialEdits) - 1 then
SetFocus(SerialEdits[EditIndex + 1].Handle)
else
SetFocus(WizardForm.NextButton.Handle);
end;
end
else
if Key = VK_BACK then
if (EditIndex > 0) and (Edit.Text = '') and (Edit.SelStart = 0) then
SetFocus(SerialEdits[EditIndex - 1].Handle);
end;
procedure CreateSerialNumberPage;
var
I: Integer;
Edit: TEdit;
DescLabel: TLabel;
EditWidth: Integer;
begin
SerialPage := CreateCustomPage(wpWelcome, 'Serial number validation',
'Enter the valid serial number');
DescLabel := TLabel.Create(SerialPage);
DescLabel.Top := 16;
DescLabel.Left := 0;
DescLabel.Parent := SerialPage.Surface;
DescLabel.Caption := 'Enter the valid serial number and continue with the installation...';
DescLabel.Font.Style := [fsBold];
SetArrayLength(SerialEdits, SC_EDITCOUNT);
EditWidth := (SerialPage.SurfaceWidth - ((SC_EDITCOUNT - 1) * 8)) div SC_EDITCOUNT;
for I := 0 to SC_EDITCOUNT - 1 do
begin
Edit := TEdit.Create(SerialPage);
Edit.Top := 40;
Edit.Left := I * (EditWidth + 8);
Edit.Width := EditWidth;
Edit.CharCase := ecUpperCase;
Edit.MaxLength := SC_CHARCOUNT;
Edit.Parent := SerialPage.Surface;
Edit.OnChange := @OnSerialEditChange;
Edit.OnKeyDown := @OnSerialEditKeyDown;
SerialEdits[I] := Edit;
end;
end;
procedure CurPageChanged(CurPageID: Integer);
begin
if CurPageID = SerialPage.ID then
WizardForm.NextButton.Enabled := False;
end;
procedure AboutButtonOnClick(Sender: TObject);
var
ErrorCode: Integer;
begin
ShellExecAsOriginalUser('open', 'http://www.mywebsite.com', '', '', SW_SHOWNORMAL, ewNoWait, ErrorCode);
end;
procedure CreateAboutButton(ParentForm: TSetupForm; CancelButton: TNewButton);
var
AboutButton: TNewButton;
begin
AboutButton := TNewButton.Create(ParentForm);
AboutButton.Left := ParentForm.ClientWidth - CancelButton.Left - CancelButton.Width;
AboutButton.Top := CancelButton.Top;
AboutButton.Width := CancelButton.Width;
AboutButton.Height := CancelButton.Height;
AboutButton.Caption := '&Get Serial';
AboutButton.OnClick := @AboutButtonOnClick;
AboutButton.Parent := ParentForm;
end;
procedure InitializeWizard;
begin
CreateSerialNumberPage;
CreateAboutButton(WizardForm, WizardForm.CancelButton);
end;
皆さんが私を助けてくれることを願っています!