Auto-open different forms selectively

Question

I want to be able to open Form1 when I open my Access application manually (double-clicking it) but Form2 instead when opening it from a scheduled task (to auto-run/schedule a process on Form2 that I also want to be able to run manually after navigating
there from Form1).
When I run Form2 via a button click on Form1, I pass OpenArgs "Manual". The code in Form2 runs automatically if Nz(OpenArgs,"Manual") = "Automatic"; that is , it runs automatically only if OpenArgs tells it to. So far, so good.
Auto-starting Form2 was also easy. I could not just open Form2 directly from a macro because (at least as far as I can tell) there is no OpenArgs option for OpenForm in a macro; however, I just created a macro that uses RunCode to run a function that opens
Form2, passing OpenArgs "Automatic". Then I just pass the macro's name with the /x MacroName command-line argument when opening the application. Again, so far so good.
Except for one thing: the only way I know (besides VBA or a macro) to auto-open a form is to set that as the default form in the current DB options. But then Form1 opens regardless of whether I open the application by double-clicking it or by using the shortcut
that includes the /x MacroName argument. This means that when auto-running the application, Form1 opens as well as Form2. No, it does not hurt anything, but I am trying to keep this as clean as possible.
I tried cancelling Form1's Form_Open event based on the value of a variable set in my auto-run function, but that did nothing to close Form1, so I infer that the default object/event priority in Access causes the form to open, and therefore its Form_Open
event to fire, before the macro calls the function that opens Form2. So now my aforementioned function sets the value of public Boolean variable AutoRun to True before opening Form2, and I check that value on Form1's timer, then close it if AutoRun = True.
And yes, I know I could create another shortcut that opens a different macro, or I could set Form1 to be invisible unless AutoRun = False. But the timer event and those all seem like workarounds. I would like to be just a bit more definite about this and
have Form1 check one time upon opening, or even some way to prevent it opening if the application is opened via my scheduler. That is, it would be great if I could embed a command in my function to tell Form1 not to open even though it is the normal default
form.
"Can't be done" or "you're stuck with what you already tried" are OK answers (if true). This is not critical; it just piqued my curiosity on how I might accomplish this.

Answer 1

Brian,
Command(), a built-in function, is available in VBA modules but cannot be called directly in the Access user interface (for example, a macro or text box control source). As a workaround, you can wrap Command() with a user-defined function created in a standard
module:
Public Function CmdLineArg() As String
    CmdLineArg = Command
End Function
and then call it in the user interface like this:
=CmdLineArg()  [the equals sign is required in some contexts]
The value of Command() remains in memory until the application is closed.  You can view or modify its value in the Access 2013 user interface by navigating to:
File tab > Options > Client Settings > Advanced > Command-line arguments:
or with these VBA methods:
Application.SetOption "Command-Line Arguments", "SomeText"
Application.GetOption("Command-Line Arguments")
Calling Command() directly where necessary would simplify code development and maintenance.