I first need to offer the disclaimer that I am barely a novice when it comes to scripting or coding, so I might be doing this all wrong in the first place. I'm running into an issue with a script I had written in powershell a while ago that is used on several hundred computers in my company daily to automate starting a certain app that everyone uses. So far everyone else hasn't had an issue except one machine.
Normally when I run the script, it starts the services and cli for the program which opens in a new window. Then the script, still open behind that, sends all of the key commands to that cli window, pauses for a brief line of user input after which it closes that cli window, does a few other clean up tasks and closes out itself.
The only difference on this one machine that's not working is the script won't pass the keystrokes to the cli window. If I put them in manually including the normal user input, it finishes the rest of the script just fine, but the cli window is just not receiving the keystroke input from the main script.
The only part of the script that send the keystrokes to the cli window is a few lines of this:
[System.Windows.Forms.SendKeys]::SendWait("Text{Enter}")
I have tried using the sleep command before and in between the key commands to make sure it's not going through the keystrokes to early. I've checked and windows had gone through an Update two days ago, but we would've heard about this issue right then if that was it. I'm at a loss for what the issue could be and would apreciate and help, tips, or direction to help figure this one out.
Is the console window the active window when the keys are sent? The documentation for the class you are calling indicates that it sends the keys to the active window. Not only that, but the documentation also seems to indicate that there are some issues that developers have run into when using that class to sends keys. I would try using the autoit powershell module instead. Autoit is its own scripting language which specializes in automating windows processes and being capable of automating interactions with windows forms, but also comes bundled with its own powershell module that I think is exactly what you need, so I would download the portable "zip" package, extract the powershell module from "Autoitx", and that should help you accomplish what you need
PowerShell automation especially when using SendKeys can / is glitchy due to many varying reasons. Can you use SendKeys sure, but you have to know the environment it will be run in and the needed performance details. Hence your futzing/guessing with Sleep.
There are purpose-built tools to help.
Auto HotKey
'PowerShell auto hotkey'
or the UIAutomation tool
'PowerShell automating other applications'
Related
Motivation: I'm using a software that doesn't have an API to interface with ... I have no alternative and have to open the software, send simple key sequence, then close ... Again and again, so I want to automate this process.
Goal: Send combinations of keyboard inputs to an inactive window.
Progress: I wrote a powershell script that open, send keys, wait, then end the process, but it only works on active window. A part of the powershell code is as follows.
$appProcess = Start-Process -FilePath $path -PassThru
$wshell = New-Object -ComObject wscript.shell;
$wshell.AppActivate($appProcess.Id)
$wshell.SendKeys('%(E)E')
Stop-Process $appProcess -Force
It works, but only on active window (windows comes to the top). What I want is to run automate the window in the background. I found an article that point me to using PostMessage in Win32 API. Since the majority of my code uses python, I decided to move from powershell to pywin32.
Issue: I cannot get the PostMessage to send key to the right handler. I saw in this article that I may need to find the exact window, but I still don't really understand how. In powershell, I can directly send keys via $wshell.AppActivate($appProcess.Id).
hwndMain = win32gui.FindWindow(None, winname)
hwndChild = win32gui.GetWindow(hwndMain, win32con.GW_CHILD)
temp = win32api.PostMessage(hwndChild, win32con.WM_KEYDOWN, 0x45, 0)
# temp came out as None
Question: Is there a way to do this in pywin32 / Win32 API?
Edit: (May 8, 2020) Yes, I have heard that using SendKeys are not reliable, but since there is no alternative offered to questions like this one on SO, how should anyone learn the "right way"? If you think there is alternative, everyone will appreciate to see a solution in action. Please suggest edits to my post to improve the quality of the question instead of shooting it down.
Time ago I developed SendMessage utility that allows to post messages to other processes or Windows via the WIN32 API. I discovered that I can't send a message to an inactive window, so I searched for a method to activate a Window. After several tests, I found a trick that allows me to "reactivate" a Window:
The development of this program presented a problem: the items in the
Notepad topmost menu can not be selected if the window was not active.
I did some tests and discovered that this point depends on the
relation that the cmd.exe window have (has?) with the other window and
the particular program in the other window. For example, in the case
of Calculator Windows accessory, its menu items can be selected when
the window is not active, and even when the window is minimized! I
tried to develop a method to activate other window from the cmd.exe
one using just System-Defined messages. I did several tests using
diverse combinations of WM_ACTIVATE, WM_CANCELMODE, WM_ENABLE,
WM_ACTIVATEAPP, WM_SETFOCUS and WM_KILLFOCUS messages, with no
success. Fortunately, the items in the system menu of any window can
be selected from another window, and after a SC_RESTORE the restored
window remains active; this behavior makes possible to activate
Notepad and other windows from the cmd.exe one via a Minimize/Restore
procedure.
I think that using my SendMessage.exe utility you may test if you may send keys to your inactive window process or to activate it, so you may then translate such a method to your phyton code. For complete details on this matter, see this link.
I'd like to create a Powershell script to press the next button in an installation wizard.
I'm troubleshooting a script that a client wrote to help them automate the process of installing software. This script can allegedly fully install any program (with some small amount of customization from program to program).
Now I've gotten it to work to a point where it launches the install wizard, but then nothing happens. Their problem only happens further down the install process, but I can't seem to figure out why the first part of it being able to press next doesn't work.
I can provide code if necessary.
What line of code I should look for in the script that could make the script push the "next" and/or "continue" buttons?
Can you? Probably.
Powershell has access to .Net API and even native Windows API, so you could go low-level enough to enumerate windows in the installer window, find the window labeled 'Next' and send a pair of mouseDown, mouseUp events to the button.
Should you? Probably not.
As mentioned in comments, any good installer system supports some method of installing silently. MSI, if I recall correctly, has a way of recording manual steps performed by a user and store them in a Response File. Then you may pass the .rsp file in later executions of the installer.
See other answers:
How to make better use of msi files
I am trying to updating a software that is company wide. When the update is applied to the server, the client machines recognize they need an update and ask if you wish to update or not. To update, the user would need to run as admin, which is'nt an option in this case.
We would like to automate this process using powershell, using the Invoke-Command feature. For the most part, the only thing that the update does is copy new files to the programs folder, which we have achieved with robocopy. However, there is one registry key that needs to be added in multiple locations. There is a setup file that does this, but requires a user (with admin privileges) click a couple buttons, and we want this to be completely automated.
So I guess the short version of my question is, what is the best way to handle the registry changes that setup.exe does? It would be nice if there was a way to invoke the script that the executable does.
As for my question, I solved the problem with a slightly diferent approach. (One that should have been tried initially)
When (ProgramName).exe is run, if it sees that it needs updated, it runs a program called (ProgramName).setup.exe with the parameters :
Client="Local folder" server="server location"
These parameters did NOT work from the command line, however, and so I ended up using a powershell script to make a scheduled task that ran (ProgramName).setup.exe with said parameters.
Another huge advantage to this was the fact that I could create an icon that allowed a regular user to run the scheduled task with admin privileges. I couldn't setup a shortcut directly, however, I wrote an AUTO-it Executable that would run the task as admin.
I hope someone can get some level of help out of this post!
Practically all of the exercises in my introductory Perl book have so far required taking input, which is causing me some challenges with Sublime Text 3. I set up the custom build file from this post to run scripts directly and I've also installed REPL on top of that, but I'm still unable to provide input through the bottom console.
Is there a way to enable input for scripts built via Ctrl+B, preferably with the console messages getting a little less in the way? I'm currently stuck with having to fire up the terminal every time, which doesn't make for a particularly smooth learning experience.
This doesn't really help you with your Sublime issue, but you mention firing up a terminal every time isn't helping you learn - here's the way I do it when I'm either learning or rapidly prototyping: Simply setup a folder on your local machine, called sync or something. Create a similar folder on your terminal server.
Now use an app (I use WinSCP and use Keep Remote Directory Up To Date setting) to sync. Every time you press save in your text editor, the new script is automatically uploaded to your terminal server, you can now just alt+tab to your terminal and run the script. Works very well for me and enabled really easy rapid prototyping.
I am not a programmer rather a designer but have been trying to write a .bat file for weeks to have two applications, which I specify, open automatically and snap to a scale of 80% left hand side and 20% for the second app on the right hand side. I have looked into multiple options without having any luck. Currently, I can create a script to open two files and automate key strokes to have them snap 50-50%, however I really need the 80-20% screen real estate. Any chance anyone would be able to help me out?
I am currently trying to use PowerShell with WASP (http://wasp.codeplex.com/) but scripting in this is beyond my knowledge. Many thanks!
You should try UI Automation PowerShell Extensions.
It supports testing for Metro Apps. The initial setup is a bit tedious (as described in the link provided) but it is well worth it. You have a UI action recording tool UIAutomationSpy which records all of your actions and generates corresponding PowerShell scripts. You can then run these scripts using the UIARunner tool.
With respect to the current problem, you could simulate the steps for snapping the apps using the recorder. You could then create a task which runs a batch file (executing the concerned script) on startup.