Web Design Basics
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More materials by author Denny Tang
All CRT (Cathode Ray Tube) have a refresh rate. A refresh rate defines how fast the frames are being shown. For example, if a monitor has a refresh rate of 60hz, it means that the image is being shown and updated 60 times a second. At 60hz, the monitor will flash the image 60 times every second.
What if we have several opened documents and want to choose only one of them to be closed? Documents are identified by the ordered they were opened in. Open several files inside Photoshop and click on the Window menu. We'll notice that the documents shown on the bottom of the menu are sorted by the....
1. Save the current ruler units preference and change it to one you would like to work with. var oldRulerUnits = preferences.rulerUnits; preferences.rulerUnits = Units.PIXELS; For a better understanding of the above code, please read the Setting the Ruler and Type Units tutorial.