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Author: Paul Lefebvre

Use Multiple CPU Cores with Worker

A Worker provides a way for you to have code that runs on multiple CPU cores. A Worker achieves this by running its code in a Console app. One or more of these console apps are started based on your Worker settings. Since these run as Console apps, the OS treats them as separate processes and spreads them out amongst available CPU cores.

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Top-Rounded Rectangle

On the forum a user asked if there was a way to create a rectangle with only the top left and top right corners being rounded. Xojo’s built-in RoundRectangle control draws with all four corners rounded, so that was not an option.

One solution is to use a GraphicsPath to draw exactly what you want. With a GraphicsPath you can use the AddArc() method to add rounded corners and then draw the lines for the rest of the rectangle.

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Doing Progress Right

The ProgressBar control and loops go hand-in-hand. If there is a ProgressBar on a Window, you can bet a For loop is close by. But there are right and wrong ways to do this, and most of the time I see progress code, I see the wrong way.

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