Applies To:
  • CitectSCADA 5.xx
Summary:
If a rectangle has a Border (Border checkbox ticked in Graphics Builder) and has a 3D effect then it may leak GDI resources in runtime.  It will leak resources when it needs to be updated.  A rectangle will be updated when it changes dynamically on when another dynamic object near it changes requiring a redraw of the rectangle.

GDI stands for Graphical Device Interface.  A leak in GDI resources will mean that strange graphical problems will start happening as GDI resources are exhausted.  Citect may also crash once GDI resources are exhausted.

 

Solution:
If the rectangle does not have a border or does not have a 3D effect then no GDI resources will be leaked.

CIT has confirmed this to be a problem in Citect for Windows versions 5.XX. This problem has been fixed in version 5.21.

 
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