Solved

Alternative to WinExec

Posted on 2000-05-05
10
1,107 Views
Last Modified: 2010-04-04
I need to start different programs from my own program.

I store the address to the programs in TFilename's.

What I do is this:
I have a variable (FileN) of TFilename.

if WinExec(PChar(FileN),SW_SHOW)<32 then
   begin
      messagedlg('error', mtInformation,[mbOk], 0)
   end;

But it only work for programs that does not access other files. It seems that the programs I load with WinExec search for the files they need in the folder of my program.

How do I tell them to act as if they were executed from their own folder?

0
Comment
Question by:retep
10 Comments
 
LVL 1

Expert Comment

by:bogieman_
ID: 2781174
Tell us more about "But it only work for programs that does not access other files".  You might try using ShellExecute(...), but I don't know exactly what you mean.
0
 
LVL 1

Expert Comment

by:bogieman_
ID: 2781180
Sorry, I just re-read your question and understand - I think ShellExecute works.
0
 

Author Comment

by:retep
ID: 2781248
Could you show me how ShellExecute works? And which unit I need to add in my uses-clause...

Thanks :)
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 1

Expert Comment

by:bogieman_
ID: 2781299
If you have D2 or above, it's in the windows unit, which is in your uses clause as a default.  I can't remember the parameters - and I'm not on a computer with Delphi on at the moment, but search for it in the Win32.hlp help file.  I think it might go something like ShellExecute(handle,'c:\Game.exe','open'...).
0
 
LVL 6

Expert Comment

by:edey
ID: 2781397
there are also plenty of examples inthe ee paq's.

Gl
Mike
0
 

Expert Comment

by:Grayl1
ID: 2781431
Hi!

Try using SW_NORMAL in stead of SW_SHOW...
0
 

Author Comment

by:retep
ID: 2781466
bogieman>> I have Delphi4, but it doesn't recognice ShellExecute(..) ???!

Anyone who knows how to use it?

Grayl1>> I have tried SW_NORMAL... No success...
0
 
LVL 6

Accepted Solution

by:
DrDelphi earned 50 total points
ID: 2781726
You have to to include ShellAPI in the uses section. From there the parameters are:
  ShellExecute(HWND,Operation,File,Parameters,Directory,ShowCmd);


For example to open a text file:

ShellExecute(handle,'open','sometextfile.txt',nil,nil,SW_ShowNormal);

Good luck!!

BTW, if you have a copy of the Delphi developer from January, I have an article in it that explains the things you can use the ShellAPI for.

0
 
LVL 14

Expert Comment

by:DragonSlayer
ID: 2783232
In other words, don't pass a nil to the Directory parameter in ShellExecute, instead pass along the directory that you wish for the programme to start in.

Cheers,
DragonSlayer
0
 

Author Comment

by:retep
ID: 2783724
This was the closest I got to a whole answer. Therefore DrDelphi gets the points... Hope the rest of you doesn't feel to cheated...

Thanks to all of you.
Regards
Retep :-)
0

Featured Post

ScreenConnect 6.0 Free Trial

At ScreenConnect, partner feedback doesn't fall on deaf ears. We collected partner suggestions off of their virtual wish list and transformed them into one game-changing release: ScreenConnect 6.0. Explore all of the extras and enhancements for yourself!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Windows 10 is mostly good. However the one thing that annoys me is how many clicks you have to do to dial a VPN connection. You have to go to settings from the start menu, (2 clicks), Network and Internet (1 click), Click VPN (another click) then fi…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question