March 20th, 2011, 11:51 AM
Direct2D & GDI+ at the same time?
I have an interactive 2D-Viewport-Control (zooming, panning etc) where I'm displaying some images with the Graphics.DrawImage method. But this is extremely slow so I tried to accelerate the image drawing with Direct2D. In C++/CLI I wrote a wrapper around IDCRenderTarget.DrawBitmap and it actually works (when working alone).
However there is a tiny-little issue... I'm not able to draw with GDI+ and Direct2D at the same time. Either one or the other is visible so there is a lot of flickering right now. GDI+ draws some stuff first, then should Direct2D draw some images to the same viewport and then I want to draw some GDI+ stuff agian.
Do you know how to solve it?
win7 x86, VS 2008 & 2010, C++/CLI, C#, .NET 3.5 & 4.0, VB.NET, VBA... WPF is comming
remeber to give feedback
you think my response deserves recognition? perhaps you may want to click the Rate this post
link/button and add to my reputation
private lessons are not an option so please don't ask for help in private, I won't replay
if you use Opera and you'd like to have the tab-button functionality for the texteditor take a look at my Opera Tab-UserScirpt; and if you know how to stop firefox from jumping to the next control when you hit tab let me know
Tags for this Thread
Click Here to Expand Forum to Full Width