Inno Setup: How to modify long running script so it will not freeze GUI?

by

The output progress pages are designed for providing feedback on longer running operations.

But in order for this to be effective you have to be able to keep Inno updated on your current progress by periodically calling methods on this page.

There is a library that will let you pass an Inno script function as a callback to a DLL, which may be of use. You may also want to look at using the ITDownload script from the same site, which lets you do HTTP access from within Inno itself, avoiding the middle-man.

However Inno is inherently single-threaded and GUI-thread-affine, so calling blocking operations directly will always block the UI without special provision. Running code from within a separate thread is possible (but only within a DLL, and you have to be very careful); other options include making asynchronous calls only, or calls which internally maintain GUI updates, such as Exec.

More Related Contents:

  1. Upgrading from Ansi to Unicode version of Inno Setup (any disadvantages)
  2. Make Inno Setup installer request privileges elevation only when needed
  3. Inno Setup: copy folder, subfolders and files recursively in Code section
  4. How to set ‘Run as administrator’ on a file using Inno Setup
  5. Inno Setup Placing image/control on custom page
  6. Inno Setup: Install file from Internet
  7. Long descriptions on Inno Setup components
  8. Exit from Inno Setup installation from [Code]
  9. How to make vcredist_x86 reinstall only if not yet installed?
  10. Custom Uninstall page (not MsgBox)
  11. Is there a way to read the system’s information in Inno Setup
  12. CustomPage for Serial Number in Inno Setup
  13. How to show percent done, elapsed time and estimated time progress?
  14. Install file from Internet in Inno Setup
  15. Using Process Exit code to show error message for a specific File in [Run]
  16. Passing conditional parameter in Inno Setup
  17. How to modify long running script so it will not freeze Inno Setup GUI?
  18. Inno Setup Get progress from .NET Framework 4.5 (or higher) installer to update progress bar position
  19. How to install Microsoft VC++ redistributables silently in Inno Setup?
  20. Can Inno Setup respond differently to a new install and an update?
  21. Inno Setup WizardImageFile looks bad with font scaling on Windows 7
  22. Playing sound during an Inno Setup install
  23. Writing binary file in Inno Setup
  24. File association in Inno Setup
  25. How to change wizard size (width and height) in an Inno Setup installer?
  26. How to make the silent installation by using Inno Setup?
  27. Kill process before (re)install using “taskkill /f /im” in Inno Setup
  28. How to create two LicenseFile pages in Inno Setup
  29. Inno Setup Exec() function Wait for a limited time
  30. Merging event function (InitializeWizard) implementations from different sources

Leave a Comment