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View Thread: Discuss the Beginning Game Development series on Coding 4 Fun
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    I got this error for the 3rd part of the Begin Game Dev series:

    Microsoft.DirectX.Direct3D.InvalidCallException was unhandled
      Message="Error in the application."

    after a day of head scratching and moving things about to see what effects they had I fixed it by moving this line of code:

    device.VertexFormat = CustomVertex.PositionColored.Format;

    to above this line:

    device.DrawUserPrimitives(PrimitiveType.LineStrip, 6, CreateCrossHairVertexArrayTop());

    rather than below the DrawUserPrimitives as I seemed to think whilst reading the tutorial

    Everything else I did as told and I used Visual Studio Express with the SP1 and the Aug2006 Direct SDK and it seems to work fine.

    I understand the issue as you have to define a pipeline before you draw the arrays?

    PS Hello to everyone