Hello, I share with you this project of user control, where I have problems capturing the change event in a textbox initialized by API in any hwnd window (using a picturebox), I need this to quickly get out of the compatibility problems of characters such as Japanese, Korean, arabic, etc... and it works quite well without using "richtextbox".

Name: example.jpg Views: 272 Size: 38.3 KB

Currently what I want is to obtain the change event simply following the same implementation by API, I am obtaining the return of the event through a timer that compares changes, but I feel that it is not the most optimal.

I leave you the files, thanks for your help!!.

Custom Textbox.zip

Thank you so much!