[Junior53]

01.how to show Component Page before the Select Dir Page (without creating custom forms or anything like that) in Inno setup 5.5.1 ee2 version?

02.how to calculate the required disk space based on the components selected and show in gigabyte on Component page in Inno setup 5.5.1 ee2 version?

I actually found an answer to this. But it doesn't work. If someone gives an answer to these two, it will be a great help <3

var
  Component1Size: Extended;
  Component2Size: Extended;
  // Add variables for each component as needed

procedure InitializeWizard;
begin
  Component1Size := 1048576;
  Component2Size := 2097152;
  // Assign sizes for other components if needed
end;

function GetTotalSize: String;
var
  TotalSize: Extended;
begin
  TotalSize := 0;
  if WizardForm.ComponentsList.Checked[0] then
    TotalSize := TotalSize + Component1Size;
  if WizardForm.ComponentsList.Checked[1] then
    TotalSize := TotalSize + Component2Size;
  // Add similar lines for other components if needed

  Result := FormatFloat('#,##0.00', TotalSize / 1024 / 1024 / 1024); // Convert bytes to gigabytes
end;

procedure ComponentsPageOnNextButtonClick(Sender: TWizardPage; var Continue: Boolean);
begin
  if Sender.ID = wpSelectComponents then
    WizardForm.DiskSpaceLabel.Caption := 'Required disk space: ' + GetTotalSize + ' GB';
end;