On Mon, 2011-05-16 at 19:03 +0200, Martin Zibricky wrote:
> Devon Rueckner píše v Po 16. 05. 2011 v 14:47 +0000:
> > * the latest trunk outputs the correct plist (though LSBackgroundOnly
> > still needs to be made False).
>
> Could anyone please explain me why LSBackgroundOnly is set to True and
> why it needs to be False?
PyInstaller creates two processes: the first one (parent) decompressed
the single-file executable in a temporary directory, then it respawns
itself (child) to actually run the program; the parent waits until the
child exits, and then remove the temporary directory (to cleanup after
itself).
On MacOSX, if we set LSBackgroundOnly=True (default for GUI
applications), we obtain a double icon in the dock bar, because Mac OSX
thinks there are two different applications running at the same time.
If we set it to False (default for console/daemon applications), there
is absolutely no icon in the dockbar because the system believes it is a
daemon-kind application. Moreover, there are other collateral damages
(eg: wxPython applications don't event start, IIRC).
So the solution Lorenzo found out was to set LSBackgroundOnly=False in
the manifest, and later execute this code within the child process (in
the bootloader):
#if defined(__APPLE__) && defined(WINDOWED)
ProcessSerialNumber psn = { 0, kCurrentProcess };
OSStatus returnCode = TransformProcessType(&psn,
kProcessTransformToForegroundApplication);
#endif
this way, the child process is changed into a foreground application,
and the dock icon appears again (just one of them, since the parent will
still be a background application).
Hope this clarifies the matter.
--
Giovanni Bajo :: [email protected]
Develer S.r.l. :: http://www.develer.com
My Blog: http://giovanni.bajo.it
Last post: Compile-time Function Execution in D
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