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Sets the icon of a window in Windows.

Component Version macOS Windows Linux Server iOS SDK
Window 3.2 ❌ No ✅ Yes ❌ No ❌ No ❌ No
MBS( "Window.SetTitleIcon"; WindowRef; ImageRef { ; bigIcon } )   More


Parameter Description Example Flags
WindowRef Window Reference is the unique OS level window ID. You can obtain this by using the Window.FindByTitle or Window.FindByIndex functions. Pass zero to access the frontmost window. 0
ImageRef The image reference for the picture image, a number returned from the GMImage.New functions 1
bigIcon Pass 1 to set big icon (for app switcher) or 0 for small icon (icon in title bar). Default is 0. 1 Optional


Returns OK or error status.


Sets the icon of a window in Windows.
Version 6.2 no longer takes a mask image like previous versions, so you now pass a picture with transparency like a PNG file for example.
You may need to use GMImage.NewImagesFromContainer to read image from container first.

See also

Example Databases

Blog Entries

This function checks for a license.

Created 18th August 2014, last changed 7th May 2020

Window.SetTitle - Window.SetTitleVisible