We're very appreciate you can give a hands to help and change these codes to conforms the Blender fundation's architecture request and code style,

I've contact Dun Liang already, he was struggling with his school stuff,and haven't time to touch this patch for very long periods. And others of us didnt know how to code,we are all arits and end users. So, Thanks a lot for help us make a better implementation and force this change go to master. Thnaks very much.

After request from Ton, I'll handle review of this (starting this week). @Bastien Montagne (mont29) will supervise me a bit.

Review and further development will happen via the input_editor_method branch.

Diff's are handy for review still, updating the patch for a final check before going into master isn't really a problem.

@Campbell Barton (campbellbarton), Ah, yeah, just wanted to point to the branch so people know we're working on it. The diff can still be updated regularly.

Added some inline comments, to justify some of the changes from the latest update

Answering some of Campbell's inline comments.

I've compiled the latest code form severin and distribute the 64bit binary blender to user and almost 50 users give the feedback. users from blendercn.org. I record these feedback in chinese http://www.blendercn.org/963.html.
Let me explain feedback record above：
There are two main windows platform when user use blender : windows 7 and windows 8
There are so many solutions for chinese version IME: PINYIN , WUBI ,SHUANGPIN, voice distinguish, handwriting distinguish etc.
There are so many companies develop IME: google bing sougou baidu etc.

the feedback from users are there part:
1，sougou PINYIN and WUBI are OK in both platform and the four-Fifths user use this version IME
2，every transform input will get a index character and the right part,(like input tianxia via IME the right part is 天下，but from IME will be t天下 ，the first 't' in the input) like bing IME in windows 8 little user use this version IME
3，double or repeat input with IME （like this: input tianxia via IME the right part is 天下,will be 天下天下 two times character）there appears that IME will remember latest input chinese charactor and when input next lation index, the will first release the last remember character and then the input one.

Some studio in blendercn have use 1 part's IME,so it's good for us, we can't encounter any problems.
If 2 and 3 can't be solved, we'll recommand user install 1 part's IME product, when user base grow up, these user who in situation 2 and 3 should find someone who can fix these thing. url http://www.blendercn.org/963.html will be the best reference to choose IME for Blender.

And for japanese, we test google japanese IME, win7 and win8 are OK, don't know people in japanese encounter what problems.

@xueke pei (yuzukyo), its hard to understand your last message, probably also because I'm not a user of IME.

Can you confirm the limitations (2 & 3) are also limitations in google-chrome? (where our IME code comes from).

We should at least be sure that issues were not introduced by having a bad IME port of chrome's code.

@Campbell Barton (campbellbarton)
I can confirm that chrome code not intruduce these limitations.
Because when we use chrome programme all IME can perfect input character.
If you need more evidence,please tell me the method how to get these thing to provide.

@xueke pei (yuzukyo), Could you explain in detail exactly what fails?

Could you give steps for someone (an English speaker), to redo the error, once the IME patch is applied?

If IME is not perfect, we may not be able to solve easily, but at least try to define the problem, it may also be some simple mistake we can fix for the release.

(a video showing the difference between Chrome and Blender for eg)

Hi all, I've uploaded some test videos, in order to show what @xueke pei (yuzukyo) talked about, presenting different issues with different IMEs.

I've tested with 14 IMEs on my Windows 7 / 8 / 8.1 64bit OS, solutions based on either PINYIN or WUBI.

Chinese IME test1 (with Blender)

Chinese IME Test (with Chrome)

Detailed test result see here: Feedback - Asian IME Support in Blender

I'm not so sure why more problems exposed on Windows 8 / 8.1. Probably the new Metro UI?

Let me know what we can do to present further information that may be helpful here. :)

A new video to show the cursor focus issue:
IME test2 - Cursor Focus Issue (Chinese)

Btw, After saving startup file with some Chinese characters typed in and then close Blender, it failed to start again (Blender tried itself to open it, but it shuts down in a flash), but can be opened in other builds. I'm not sure if it is caused by the build that supports IME.

It looks like this before saving:

@Campbell Barton (campbellbarton), yeah, I followed it, thanks a lot! I'm currently adding WITH_INPUT_IME support for Scons, which isn't there, yet. Other than that, LGTM :)

@Julian Eisel (Severin)

Can this table ok? I copy from Leon's sheet: Feedback - Asian IME Support in Blender

@Julian Eisel (Severin)

Hi

The last commit to master didn't include two file: GHOST_ImeWin32.h and GHOST_ImeWin32.cpp.  When I use Cmake,it tells me some file miss. Is this right? or should I do something. Thanks.

ps, when I copy two file above, and compiled. we test the building, And It work fine. If something we should take care to test more, let us know, thanks.

Thanks @xueke pei (yuzukyo), committed missing files (rB12e5a325577f)