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The problem is that I don't use Refresh or DoEvents to update the picture, so the solution provided unfortunately does not help me a lot, though it could be valuable in the future for some other occations :)<br />

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The problem is that I don't use Refresh or DoEvents to update the picture, so the solution provided unfortunately does not help me a lot, though it could be valuable in the future for some other occations :)


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I use a PictureBox control to display a network, i.e. a BIG number of Lines, Circles and Text. Drawing/Refreshing is VERY SLOW. Are there any techniques to accelerate the process? <br />
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Have heard something about &quot;drawing in memory&quot; but don't know what it is and how it's working. Has it something to do with .hDC property?
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I use a PictureBox control to display a network, i.e. a BIG number of Lines, Circles and Text. Drawing/Refreshing is VERY SLOW. Are there any techniques to accelerate the process? 

Have heard something about "drawing in memory" but don't know what it is and how it's working. Has it something to do with .hDC property?

Faster Draw/Refresh in PictureBox

Visual Basic is Microsoft’s event-driven programming language and integrated development environment (IDE) for its Component Object Model (COM) programming model. It is relatively easy to learn and use because of its graphical development features and BASIC heritage. It has been replaced with VB.NET, and is very similar to VBA (Visual Basic for Applications), the programming language for the Microsoft Office product line.