We help IT Professionals succeed at work.

Passing values from one exe to another exe

GinaP
GinaP asked
on
168 Views
Last Modified: 2012-06-22
Hi experts! I need to pass ByVal few Thru/False variables from one executable to another, in order to start(or not) some processes. Could you, please, give me a hand?
Comment
Watch Question

√Čric MoreauSenior .Net Consultant
CERTIFIED EXPERT
Top Expert 2016

Commented:
Use an ActiveX EXE with public variables in a standard module.
I found the GetSettings and SaveSettings functions to be fast and reliable. You don't have to worry about another app's reliablity.

Commented:
Emoreau has the most robust answer, but you can also use an older technology called DDE, if your requirements are simple enough.

To use the ActiveX EXE approach, create a new vb project, an when asked which template to use, choose ActiveX.EXE

This will create a project with a class module in it.  You should code this class to do the processes that you have mentioned, and perhaps you want to create two public functions or subs in the class:

Public Sub StartProcess()
'   here you call the code to start the process
End sub

Public Sub StopProcess()
'   here you call the code to stop the process
End sub


When done, compile your EXE.  This register's your class as an ActiveX Ole Server (local).  After you compile the first time, go to the Compile tab of the Project Properties box and select the option called "Binary Compatible", and in the textbox below the option, make sure to browse for the EXE that you just created.  This ensures that any program that you create in the future will not have "Registration" problems.

In a new standard VB EXE project, go to the Project | References menu, and you should see the name of your ActiveX EXE listed there.  Select it.  If you had called your class clsMyProcess and you compiled your ActiveX EXE to Cool.EXE then you should see Cool listed in this references menu.

In your code you will have a statement such as:

Dim x as New clsMyProcess

x.StartProcess

....


x.StopProcess

When you compile your second program and then build a setup program for it, it will tell you that it has found a local Ole Server that it depends upon.  You'll need to make sure that your ole server is included in the distribution.

You also have the option of making your ActiveX EXE a "remote ole server", meaning that you could have that EXE running on a server somewhere, and you can set up your second application to start and stop the process through this ActiveX EXE on the remote machine.  To do this, you'll have to use DCOM, which stands for distributed component object model, I think.  That gets a little more complex, but I'll throw that out for discussion.
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
Sorry - just reread the question - obviously the above code could easily be modified to read 0 and -1 as true/false

Author

Commented:
Thank you very much paulstamp's. Your answer is great: it is easy, very little code and it works perfectly for my purposes!
Thanks a lot to all of you guys, who gave me the answers. They are greatly appreciated.

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.