Bitmap-Width
This property identifies the width in pixels of the image displayed in the Push-Button control. The bitmap strip identified by the 
Bitmap-Handle property is divided into several smaller images. The width of each image is the value assigned to this property.
 
Example - Define a push-button using different bitmap images for different states of it
screen section. ...   03 screen-1-pb-1 Push-Button      line 4.5      column 8.1      size 70      lines 48      id 1      bitmap-handle icon-png      square      bitmap-default 21      bitmap-disabled 18      bitmap-rollover 19      bitmap-pressed 20      bitmap-width 18      .  |