How to Turn Off gvim’s Control of Input Method

  question, vim

After changing win8, it was found that gvim did not have complete control over the input method and often opened it when the input method should not be opened. On the Internet, I can only find out how to turn on gvim’s control of the input method (only the input method is turned on in the insert mode). It seems that it is turned off by default, but I have never turned it on and there are problems. How to turn off gvim’s control of input method completely?

:help 'imi'