How do I tell if the PC is already in Remote Desktop? Topic is solved

[nutnutwin]

Hi, thank you for reading my post

# Background
I have two PCs, PC_A, PC_B, in the same LAN

I am using PC_A and have a hotkey to run remotedesktop to connect to another PC(PC_B)

say, I have
^F8:: MyFunc_Connect()

which calls "C:\Windows\SysWOW64\mstsc.exe" with parameter to connect to other PC

# What I want to do
When I RemoteDesktop from PC_A to PC_B I wish to block this shortcutkey,
so as to avoid double RemoteDesktop like PC_A➤PC_B➤PC_A, which cause trouble sometimes

# What I tried
I understand that "mstsc.exe" is RemoteDesktop Client, but I have no idea the "server app exe" on PC_B.
If I do know, then I can use WinExist() to judge if PC_B is being connected from some other PCs.

Thank you.

[jNizM]

https://github.com/jNizM/ahk-scripts-v2/blob/main/src/Others/IsRemoteSession.ahk

Returns a value of TRUE to indicate that the current session is a remote session, and FALSE to indicate that the current session is a local session.

[nutnutwin]

https://github.com/jNizM/ahk-scripts-v2/blob/main/src/Others/IsRemoteSession.ahk

Thank you for your answer, will try it after updating to V2

[rc76]

Is there any chance we can convert this code into v1 compatible?

Code: Select all

IsRemoteSession()
{
    #DllLoad "wtsapi32.dll"

    static WTS_CURRENT_SERVER_HANDLE := 0
    static WTSIsRemoteSession        := 29
    static ProcessId                 := DllCall("kernel32\GetCurrentProcessId")

    ; retrieves the Remote Desktop Services session associated with a specified process
    if !(DllCall("kernel32\ProcessIdToSessionId", "UInt", ProcessId, "UInt*", &SessionId := 0))
        throw OSError()

    ; retrieves session information for the specified session on the specified Remote Desktop Session Host (RD Session Host)
    if !(DllCall("wtsapi32\WTSQuerySessionInformation", "Ptr", WTS_CURRENT_SERVER_HANDLE, "UInt", SessionId, "Int", WTSIsRemoteSession, "Ptr*", &Buf := 0, "UInt*", &Size := 0))
    {
        DllCall("wtsapi32\WTSFreeMemory", "Ptr", Buf)
        throw OSError()
    }
    IsRemoteSession := NumGet(Buf, "Int")
    DllCall("wtsapi32\WTSFreeMemory", "Ptr", Buf)

    return IsRemoteSession
}