Notify the SSH Server of a Terminal Resize

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Demonstrates the Chilkat Ssh.SendReqWindowChange method, which tells the server that the terminal dimensions changed. The arguments are the channel number, the new character width and height, and the pixel width and height. It may be sent any time after the PTY is allocated.

integer li_rc
integer li_Success
oleobject loo_Ssh
integer li_SshPort
string ls_Password
integer li_ChannelNum
integer li_NewWidthInChars
integer li_NewHeightInRows
integer li_PixWidth
integer li_PixHeight

li_Success = 0

//  Demonstrates the Ssh.SendReqWindowChange method, which notifies the server that the terminal
//  dimensions changed.  The 1st argument is the channel number, the 2nd and 3rd are the new
//  character width and height, and the 4th and 5th are the pixel width and height.

loo_Ssh = create oleobject
li_rc = loo_Ssh.ConnectToNewObject("Chilkat.Ssh")
if li_rc < 0 then
    destroy loo_Ssh
    MessageBox("Error","Connecting to COM object failed")
    return
end if

li_SshPort = 22
li_Success = loo_Ssh.Connect("ssh.example.com",li_SshPort)
if li_Success = 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

//  Normally you would not hard-code the password in source.  You should instead obtain it
//  from an interactive prompt, environment variable, or a secrets vault.
ls_Password = "mySshPassword"

li_Success = loo_Ssh.AuthenticatePw("mySshLogin",ls_Password)
if li_Success = 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

//  Open a session channel.  A negative return value indicates failure.
li_ChannelNum = loo_Ssh.OpenSessionChannel()
if li_ChannelNum < 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

//  Allocate a PTY and start a shell.
li_Success = loo_Ssh.SendReqPty(li_ChannelNum,"xterm",80,24,0,0)
if li_Success = 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

li_Success = loo_Ssh.SendReqShell(li_ChannelNum)
if li_Success = 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

//  The user resized the terminal window -- tell the server the new dimensions.
li_NewWidthInChars = 132
li_NewHeightInRows = 43
li_PixWidth = 0
li_PixHeight = 0
li_Success = loo_Ssh.SendReqWindowChange(li_ChannelNum,li_NewWidthInChars,li_NewHeightInRows,li_PixWidth,li_PixHeight)
if li_Success = 0 then
    Write-Debug loo_Ssh.LastErrorText
    destroy loo_Ssh
    return
end if

Write-Debug "Window change sent."

loo_Ssh.Disconnect()


destroy loo_Ssh