<< Click to display table of contents >> TCustomRuler.Zoom

This property must be equal to zooming in the editor that works with this ruler, percent.

type
  TZoomRange = 1 .. 10000; // 1% - 10000%
property Zoom: TZoomRange;

By default, if you did not change any “pixels per inch” properties of TRichViewEdit and this ruler, then a document is not scaled, and Zoom = 100 (meaning 100%).

However, if you changed TRichViewEdit.DocumentPixelsPerInch, you must change Zoom accordingly:

  RVRuler1.Zoom := 

    Round(100*RichViewEdit1.GetRealDocumentPixelsPerInch /

      RVRuler1.ScreenRes);

An alternative solution would be assigning RVRuler1.ScreenRes = RichViewEdit1.GetRealDocumentPixelsPerInch. However, it is not recommended, because:

•it scales all the ruler visual elements too;

•ScreenRes is reset when the ruler is loaded from DFM and when it is resized.

Default value

100