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kingToolbox / WindTerm

A professional cross-platform SSH/Sftp/Shell/Telnet/Serial terminal.
https://kingtoolbox.github.io
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clear screen and /or scrollbar not working #447

Open zangetsudo opened 2 years ago

zangetsudo commented 2 years ago

hi, there.

we have tried with ctrl+l, ctrl+shift+l, nothing clear, but one/or two new line is added to the last screen. how can we clean the whole screen, we checked with menu, key boards shutcut , nothings.

regards, zan

dmberrycom commented 2 years ago

Same issue here.

Clear Screen via menu or shortcut CTRL+L does not function, tested on shell and serial sessions, and both exhibit the same behaviour.

zangetsudo commented 2 years ago

"clear scrollbar" works now after we update to WindTerm 2.3.0 Prerelease. but the current screen cannot be clear anyway.

@dmberrycom

kingToolbox commented 2 years ago

Sorry for the late replay.

Can you tell me which System of the session you selected is? Only linux, cmd, powershell and routeros support clear screen. In addition, can Ctrl+L clear the screen normally in other terminals?

dmberrycom commented 2 years ago

Yes, these are serial ports. I've tried changing the system type, but this makes no difference.

Ctrl+L does not clear in this use.

image

kingToolbox commented 2 years ago

Ctrl+L needs the support of the remote system. After pressing Ctrl+L, WindTerm will send the text of clearScreen configured in the .system file.

Taking the linux system as an example, the clearScreen is defined as \u000c in the WindTerm_install_path/terminal/schemes/linux.system. So when you press Ctrl+L, WindTerm will send \u000c to the remote system. If the remote system understands this command, it will send the control sequence ED to WindTerm to clear the screen, and then WindTerm will clear the screen after receiving ED. In this way, the remote and local can be guaranteed to be exactly the same.

So, does your serial device support clear screen? You can try other terminals, if other terminals can clear the screen, please let me know and I will tell you how to solve it, thank you.

dmberrycom commented 2 years ago

No, I've been using windterm to connect to very dumb devices that just output diagnostic data via a serial port. The devices are not actually terminals just basic USART devices connected over USART to serial adapters. I was looking for the ability just to clear the output on the screen, for example when rebooting a device to clearly view the new output.

Hope this makes sense.

kingToolbox commented 2 years ago

Hm, dumb devices usually cannot support clearing the screen. However, if you have a way to send \033[2J to WindTerm from the serial port, you can also clear the screen, just like executing echo -e "\033[2j" in the Linux system.

kingToolbox commented 2 years ago

SORRY! WindTerm_2.3.0_Prerelease_2 and WindTerm_2.3.0_Prerelease_3 has a serious SFTP bug #487 and may cause file corruption after uploaded.

Please use the old versions or update to the WindTerm_2.3.0_Prerelease_4 version. Thank you.

kingToolbox commented 2 years ago

Duplicate of #335

In the new WindTerm_2.4.0_Prerelease_1, a new dumb system has been added. In addition to features such as highlighting and folding, the dumb system supports clearing the screen locally. So for some dumb devices, especially serial devices, if you need to clear the screen locally, please use dumb system instead of none system.

The dumb system also supports -> command prompt for the VxWorks system. Please download and use it, if you have any questions, please let me know, thank you.

BTW: Please use dumb system with caution and only for the dumb devices. If the remote supports the clear screen command, using dumb system to clear the screen locally will cause the local display to be out of sync with the remote, which may cause various display errors.