ImageWidth property
Only available for ImageList objects.
Read/Write at design time
Specifies the width for images in an image list. Take into account that this value will be get and/or set in pixels or twips units, depending on the current scale mode (see REMARKS).
REMARKS: This property is given in pixels or twips
units depending on the ScaleMode property. For Window,
MDIWindow and Picture objects it depends on its own ScaleMode
property, while for any other object it depends on the ScaleMode property of
its parent (if its parent is a Window, MDIWindow or Picture), or its first ascendant
having the ScaleMode property.