How to change wizard size (width and height) in an Inno Setup installer?

Inno Setup 6

Inno Setup 6 supports changing a size of the wizard window.

You can use WizardSizePercent to change a size of the wizard window.

You can also use WizardResizable to allow the user to resize the wizard (this is default behaviour, if you use the modern WizardStyle).

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Inno Setup 5

There’s no magic way to make the wizard pages larger in Inno Setup 5. They are designed for a specific size. If you want to make them larger, you have to go page-by-page, control-by-control and carefully decide how to layout them for your new size.

The following code is just an example, you may want to choose another change in layout.

procedure ShiftDown(Control: TControl; DeltaY: Integer);
begin
  Control.Top := Control.Top + DeltaY;
end;

procedure ShiftRight(Control: TControl; DeltaX: Integer);
begin
  Control.Left := Control.Left + DeltaX;
end;

procedure ShiftDownAndRight(Control: TControl; DeltaX, DeltaY: Integer);
begin
  ShiftDown(Control, DeltaY);
  ShiftRight(Control, DeltaX);
end;

procedure GrowDown(Control: TControl; DeltaY: Integer);
begin
  Control.Height := Control.Height + DeltaY;
end;

procedure GrowRight(Control: TControl; DeltaX: Integer);
begin
  Control.Width := Control.Width + DeltaX;
end;

procedure GrowRightAndDown(Control: TControl; DeltaX, DeltaY: Integer);
begin
  GrowRight(Control, DeltaX);
  GrowDown(Control, DeltaY);
end;

procedure GrowRightAndShiftDown(Control: TControl; DeltaX, DeltaY: Integer);
begin
  GrowRight(Control, DeltaX);
  ShiftDown(Control, DeltaY);
end;

procedure GrowWizard(DeltaX, DeltaY: Integer);
begin
  GrowRightAndDown(WizardForm, DeltaX, DeltaY);
  
  with WizardForm do
  begin
    GrowRightAndShiftDown(Bevel, DeltaX, DeltaY);
    ShiftDownAndRight(CancelButton, DeltaX, DeltaY);
    ShiftDownAndRight(NextButton, DeltaX, DeltaY);
    ShiftDownAndRight(BackButton, DeltaX, DeltaY);
    GrowRightAndDown(OuterNotebook, DeltaX, DeltaY);
    GrowRight(BeveledLabel, DeltaX);

    { WelcomePage }
    GrowDown(WizardBitmapImage, DeltaY);
    GrowRight(WelcomeLabel2, DeltaX);
    GrowRight(WelcomeLabel1, DeltaX);
    
    { InnerPage }
    GrowRight(Bevel1, DeltaX);
    GrowRightAndDown(InnerNotebook, DeltaX, DeltaY);
    
    { LicensePage }
    ShiftDown(LicenseNotAcceptedRadio, DeltaY);
    ShiftDown(LicenseAcceptedRadio, DeltaY);
    GrowRightAndDown(LicenseMemo, DeltaX, DeltaY);
    GrowRight(LicenseLabel1, DeltaX);
    
    { SelectDirPage }
    GrowRightAndShiftDown(DiskSpaceLabel, DeltaX, DeltaY);
    ShiftRight(DirBrowseButton, DeltaX);
    GrowRight(DirEdit, DeltaX);
    GrowRight(SelectDirBrowseLabel, DeltaX);
    GrowRight(SelectDirLabel, DeltaX);

    { SelectComponentsPage }
    GrowRightAndShiftDown(ComponentsDiskSpaceLabel, DeltaX, DeltaY);
    GrowRightAndDown(ComponentsList, DeltaX, DeltaY);
    GrowRight(TypesCombo, DeltaX);
    GrowRight(SelectComponentsLabel, DeltaX);
    
    { SelectTasksPage }
    GrowRightAndDown(TasksList, DeltaX, DeltaY);
    GrowRight(SelectTasksLabel, DeltaX);

    { ReadyPage }
    GrowRightAndDown(ReadyMemo, DeltaX, DeltaY);
    GrowRight(ReadyLabel, DeltaX);
    
    { InstallingPage }
    GrowRight(FilenameLabel, DeltaX);
    GrowRight(StatusLabel, DeltaX);
    GrowRight(ProgressGauge, DeltaX);

    { MainPanel }
    GrowRight(MainPanel, DeltaX);
    ShiftRight(WizardSmallBitmapImage, DeltaX);
    GrowRight(PageDescriptionLabel, DeltaX);
    GrowRight(PageNameLabel, DeltaX);
    
    { FinishedPage }
    GrowDown(WizardBitmapImage2, DeltaY);
    GrowRight(RunList, DeltaX);
    GrowRight(FinishedLabel, DeltaX);
    GrowRight(FinishedHeadingLabel, DeltaX);
  end;
end;

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Use the GrowWizard function from the InitializeWizard event function (or elsewhere), giving it a change in width and height as parameters:

procedure InitializeWizard();
begin
  GrowWizard(ScaleX(100), ScaleY(80));
end;

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The code takes care of the following pages:

• WelcomePage

  

• LicensePage

  

• SelectDirPage

  

• SelectComponentsPage

  

• SelectTasksPage

  

• ReadyPage

  

• InstallingPage

  

• FinishedPage

  

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Other, less common, pages are left as an exercise to the readers:

• PasswordPage
• InfoBeforePage (same as LicensePage)
• UserInfoPage
• SelectProgramGroupPage
• PreparingPage
• InfoAfterPage (same as LicensePage)

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• How to change wizard size (width and height) in an Inno Setup installer?
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