isCOBOL Evolve : User Interface : Controls Reference : PUSH-BUTTON : Properties : Bitmap-Scale
Bitmap-Scale
This property specifies what to do if the image dimensions don’t fit the area identified by Lines, Size and Bitmap-Width properties.
The possible values for this property are:
0
The image is not altered. This is also the default behavior when Bitmap-Scale is not set.
1
The image is resized to fit completely the area. The aspect ratio may be altered.
2
The image is resized maintaining the aspect ratio. The resized image may not fit completely the area.
The quality of the scaled image is controlled by the iscobol.bitmap_scale.best_quality (boolean) configuration property.
If the Push-Button control is resized by a Layout-Manager and Bitmap-Scale is set to "1" or "2", then the image is resized along with the window.
When dealing with bitmap strips, the runtime first isolates the image from the strip, then it applies the scale to the isolated image.
 
Example - Define a push-button using different bitmap images for different states of it and apply bitmap scaling
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
     bitmap-scale 2
     .