c# GDI+ rendering problem

Not sure if anyone else has seen this, but I am rendering a custom control that has zoom functionality. Lets say for simplicity sake that I am just drawing one rectangle with border width = 1 in the viewable area of the control. When I alter the zoom (grap开发者_JS百科hics.ScaleTransform()) the rectangle's borders take on different sizes (sometimes the same, mostly different). This makes my control look ugly when the user zooms in or out. I'm sure it's something really simple but i'm struggling to fix it. Any help appreciated!

thanks,

Thornza

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Yes, the pen width gets scaled as well. Create a pen with a Width = 0. That will always be one pixel wide, regardless of the ScaleTransform.