How can I remove my application from taskbar without closing it in
Delphi 3 !

Thanks for your help !

ShowWindow is the Windows API function. You can also try with
SetWindowPos.

Each Delphi app has an invisible window which handle can be found
retrieve with Application.Handle. This handle can be used with all the
API functions that uses a HWnd parameter.

Take a look at online help about Application object.

Regards,

Frdric GUILLIEN

To hide an app from the taskbar, I use this:

  showwindow(application.handle, sw_hide);

To make it re-appear, I use:

  showwindow(application.handle, sw_showdefault);

Hope this helps,
Eric...

procedure Tform1.HideTaskButton;
begin
ShowWindow( Application.Handle, SW_HIDE );
SetWindowLong( Application.Handle, GWL_EXSTYLE,
                 GetWindowLong(Application.Handle, GWL_EXSTYLE) or
                 WS_EX_TOOLWINDOW and not WS_EX_APPWINDOW);
ShowWindow( Application.Handle, SW_SHOW );
End;

Then, put a call to HideTaskButton in the ONCREATE handler for your form.

If you want to be able to alt-tab to your program, try the TNoTask
component, available at www.sunsite.icm.edu.pl/delphi

Eric Lawrence
Applications Architect
Bayden Systems
delta...@wam.umd.edu
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