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ShellExecute

Hi,
I'm using ShellExecute to run a 16bit app. The command is as follows :
       ShellExecute (Handle, 'open',
                     PChar ('Pro16.exe'),
                     '', 'c:\Testpr~1\Test16~1', SW_HIDE);

The 16bit app windows supposed to be invisible... but it doesn't.

How to hide the window?

Thanks
0
llkhor
Asked:
llkhor
1 Solution
 
SteveWaiteCommented:
try ShellExecute(Application.Handle, nil, PChar(...
0
 
Lee_NoverCommented:
if it's still visible then set it's visibility with ShowWindow(hWin, false);
0
 
nricoCommented:
Run it with WinExec('Pro16.exe', SW_HIDE);

This works (definately) for console applications. Dunno if it works for 16-bit windows apps too, since the program is nog obligated to follow the startup Display flags.

If it's still visible retrieve its window handle using FindWindow and then use ShowWindow(hWindow, SW_HIDE) as Lee suggested.

Good luck.
0
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CyberUFOCommented:
I think it can be solved by retrieve the app's handle and set it to hide, but dunno why
Execute(Application.Hanlde,
        nil,PChar(...)...)
can't work . :-(

BTW: Through, ur application is 16-bit,  WinExec() function is only provided for compatibility with 16-bit Windows, I don't think ur Win32-based app need to use it.
But maybe it works :-(
0
 
nricoCommented:
Sure, but WinExec still works (as an alias for CreateProcess I believe), it's LOTS easier to use because it requires less parameters and supports exactly what you want, namely a filename and a show parameter.
0
 
llkhorAuthor Commented:
thanks to all.

nrico,

firstly, my mistake of including the ShellExec in Pro32's FormCreate.

WinExec() doesn't work and I need to use:
 
   in Pro32's onFormActivate -  

     ShellExecute (Application.Handle, 'open',
              PChar('Pro16.exe'), '', 'c:\', SW_HIDE);  

     h := FindWindow('TfPro16',nil);
     if h <> 0 then
          ShowWindow(h,SW_HIDE);

and it works.

thanks.

0
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