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How to handle VertexBuffers on DeviceLost/Reset?

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My question is how am I supposed to handle VertexBuffers on a DeviceLost/Reset. Right now I have an event called OnBufferCreate that gets called when DeviceReset is fired however I get an error saying "Failed to create the Device". I am using C#, and the Framwork to create the device and window etc. Here is some of my code...
private void OnBufferCreate(object sender, EventArgs e)
	VertexBuffer vb = (VertexBuffer)sender;

	m_quad.AddVertsToVB(64, 64, ref vb, 0);
m_quad.AddVertsToVB() just adds its Vertices to the buffer correctly. I call this function on the device reset but doing so fails badly. the Quad class contains code for reinitializing its data and has been tested to work perfectly. Any suggestions? I can, of course, post more code if needed... Thanks!, John Sedlak

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