Force update OnRenderTargetChanged
Hi, how can I update the OnRenderTargetChanged() after renew a variable? my problem is the following: I have a brush (transparency) which I update via a variable in the OnMarketData() method. Now the opacity of the brush used in OnRender() should change immediately and without delay accordingly. Unfortunately, the OnRenderTargetChanged() is only called when something happens to the chart, but that's too late.
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Hello sidlercom80,
Thanks for your post.
We must update DX brushes OnRenderTargetChange since DX brushes are device dependent (depend on the RenderTarget.) This does not mean this is the only place we should update our brushes. If, for example, a brush needs to be updated before the RenderTarget changes, you can use logic in OnRender to see if your brush needs updating, and then you can update the brush then so it is updated in the next render pass.
I do something like this in my LabeledLines DrawingTool extension using bools to notify if a brush needs to be updated outside of a RenderTarget change.
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