• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 137
  • Last Modified:

How can i create a application that can only run from a dll

Hello i created a program called Phonebook.exe
i only want to be able to execute it from within a DLL

Does anyone know what code to put in the PhoneBook.exe
so it cannot be double clicked on to open..
thankyou kindly
0
Dinkleburger
Asked:
Dinkleburger
  • 4
  • 3
1 Solution
 
robert_marquardtCommented:
The easiest trick is to have a secret command line parameter. Only the DLL knows it.
If the commandline parameter is missing in Phonebook.exe then it simply quits without doing anything.
Place the code to check the param in the .dpr
0
 
Stuart_JohnsonCommented:
Robert's suggestion is the way I'd do it too.

if ParamCount = 0 then
  Halt;

As he said, do it in the DPR so that none of your forms are made visible first.

Stu.
0
 
DinkleburgerAuthor Commented:

Thanks
But i am not understanding this

Can my Dll read inside the exe?

or is the Exe reading inside the Dll?

All my Dll is doing is Executing the Phonebook.exe

the same if it is Double clicked on

now i am lost... maybe some sample code for the exe and what i must put in the dll if anything

Thanks in advance
0
Take Control of Web Hosting For Your Clients

As a web developer or IT admin, successfully managing multiple client accounts can be challenging. In this webinar we will look at the tools provided by Media Temple and Plesk to make managing your clients’ hosting easier.

 
Stuart_JohnsonCommented:
If you double clicked the exe from Explorer, because you're not providing any parameters to the exe, it will close.

When you execute the PHONEBOOK.EXE from your DLL, you do it like this:

ShellExecute(hInstance, 'OPEN', 'PHONEBOOK.EXE,'','/WHATEVER', SW_SHOW);

The /WHATEVER is a dummy parameter that's passed to the EXE.  So, when ShellExecute starts the EXE, it actually runs:

PHONEBOOK.EXE /WHATEVER

Because a parameter is passed, the exe runs perfectly.

Hope this helps,

Stu
0
 
DinkleburgerAuthor Commented:
Yes Thankyou now i am understanding better
thank you all very very much
0
 
DinkleburgerAuthor Commented:
Ps Guys i only have the

Accept Comment As Answer Button next to my own Name and Roberts
there is no Button next to your Name Stuart so i want to Accept your answer

I will check back after and see if it is working..

0
 
Stuart_JohnsonCommented:
Hi Dinkleburger,

As Robert was the person who suggested the way to do this, it's only fair that he recieves the points.  All I was doing was helping you implement it (something Robert would have no doubtly done if I hadn't jumped in an made a noise).

Cheers all!

Stu

0
 
DinkleburgerAuthor Commented:
Just one more thing

ShellExecute(hInstance, 'OPEN', 'PHONEBOOK.EXE,",'/WHATEVER', SW_SHOW);

Where the WHATEVER is

i keep getting undeclared identifier

any ideas??
thanks
0

Featured Post

Get expert help—faster!

Need expert help—fast? Use the Help Bell for personalized assistance getting answers to your important questions.

  • 4
  • 3
Tackle projects and never again get stuck behind a technical roadblock.
Join Now