Programs cannot get environment variables from wsl

I'm using Xming to get GTK gui and have to set env var "DISPLAY" in WSL.

However, Clion use "wsl --exec /bin/bash -c" to run compiled programs and this shell cannot get "DISPLAY".

I have tryed to set this env var in etc/environment, in bashrc(before "case $-"). But all failed.

Terminal of clion could run my program and read value of DISPLAY. Now I have to build by ctrl+f9 and run in terminal.

When I run "wsl --exec /bin/bash -c env" in windows terminal, I noticed that there is no DISPLAY and this shell have a shlvl as 0.

BTW, run "bash -c env" in WSL will list DISPLAY as a env var, which confused me. Maybe this issue should be report to microsoft, not jetbrain?

Any help is appreciated.