In past I use VC++'s MFC create activex control , it use gdiplus to load the image file and display it. I looking for coder provide some suggestion if I want to convert ActiveX to native .net control. What Pros for native.net control? I consider whether I need spend a lot of time to rewrite native .net control. Now I try import the activex to winform (vb.net or c#), it work. please let me know professional detail suggestion, whether should I rewrite activex control to native.net control. Finally you may provide step by step simple show me how to convert MFC ActiveX to native .net control. Suppose the MFC ActiveX can use gdiplus load the image and display it. It have LoadImage method and FileWidth, FileHeight properties. It have click and double click event.