Image.ImageWidth Property (Access)
Office 2010
You can use the ImageWidth property to determine the width in twips of a picture in an image control. Read/write Long.
This property is read-only in all views.
You can use the ImageWidth property together with the ImageHeight property to determine the size of a picture in an image control. You could then use this information to change the image control's Height and Width properties to match the size of the picture displayed.