Reply To: NSImage to Syhon

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Is your OpenGL Context active and current?

Is this the same OpenGL Context you’ve used to make a Syphon Server?

Is this context legacy or core profile? (use legacy)

You are positive texture target is GL_TEXTURE_2D?

You are positive your CGContext contains an image?

No logs? No errors? The code above is not enough to really get a context for what could be going wrong.