How would it test to ensure that their is only one instance of my wxPython app loaded at one time ??
···
Geoff Skerrett
Murray, Skerrett & Associates, Jonas Business Software
Phn: 902-461-0079 ~ Fax:902-461-9559 ~ Mob: 516-220-9723
Hi Geoff,
How would it test to ensure that their is only one instance of my wxPython
app loaded at one time ??
Try something like this:
class YourApp(wx.App):
def OnInit(self):
self.name = "YourApp-%s" % (wx.GetUserId())
self.instance = wx.SingleInstanceChecker(self.name)
if self.instance.IsAnotherRunning():
wx.MessageBox("You Already Have One Instance Running", "Error")
return False
frame = YourAppFrame(None)
frame.Show()
return True
def OnExit(self):
del self.instance
Andrea.
"Imagination Is The Only Weapon In The War Against Reality."
http://xoomer.virgilio.it/infinity77/
···
On 5/24/07, Geoff Skerrett wrote:
Geoff Skerrett ha scritto:
How
would it test to ensure that their is only one instance of my wxPython
app loaded at one time ??
Geoff Skerrett
Murray, Skerrett
& Associates, Jonas Business Software
Phn: 902-461-0079 ~
Fax:902-461-9559 ~ Mob: 516-220-9723
You can use a lock-file system, as:
On Windows:
win32file.CreateFile( <path_file>, <filename>) ,
GENERIC_READ | GENERIC_WRITE, 0, None, OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL, 0)
On Unix: ( linux & mac ):
fcntl.lockf( os.open(<filename>, os.O_RDWR),
fcntl.LOCK_EX|fcntl.LOCK_NB )
You can utilize these methods at start-up: if it generate an exception,
another app is already open!!!
Great, not!!
Bye
···
–
//\ariano Di Felice
Java PHP Python Ruby programmer
with MySQL, PostgreSql, SQLite and Oracle support
Linux Platform Developer
Tel. 0735 703735
Cell +39 339 6407211
Hi Mariano,
···
On 5/24/07, Mariano Di Felice wrote:
You can use a lock-file system, as:
On Windows:
win32file.CreateFile( <path_file>, <filename>) , GENERIC_READ |
GENERIC_WRITE, 0, None, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
On Unix: ( linux & mac ):
fcntl.lockf( os.open(<filename>, os.O_RDWR), fcntl.LOCK_EX|fcntl.LOCK_NB
)You can utilize these methods at start-up: if it generate an exception,
another app is already open!!!
Great, not!!
wxPython already does this for you, platform independently. You don't
even have to bother about platform-specific code to do that. Just see
the post I sent few minutes ago.
Andrea.
"Imagination Is The Only Weapon In The War Against Reality."
http://xoomer.virgilio.it/infinity77/
Ok Andrea, grazie mille!!!
Andrea Gavana ha scritto:
···
Hi Mariano,
On 5/24/07, Mariano Di Felice wrote:
You can use a lock-file system, as:
On Windows:
win32file.CreateFile( <path_file>, <filename>) , GENERIC_READ |
GENERIC_WRITE, 0, None, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
On Unix: ( linux & mac ):
fcntl.lockf( os.open(<filename>, os.O_RDWR), fcntl.LOCK_EX|fcntl.LOCK_NB
)You can utilize these methods at start-up: if it generate an exception,
another app is already open!!!
Great, not!!wxPython already does this for you, platform independently. You don't
even have to bother about platform-specific code to do that. Just see
the post I sent few minutes ago.Andrea.
"Imagination Is The Only Weapon In The War Against Reality."
http://xoomer.virgilio.it/infinity77/---------------------------------------------------------------------
To unsubscribe, e-mail: wxPython-users-unsubscribe@lists.wxwidgets.org
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--
/\/\ariano Di Felice
Java PHP Python Ruby programmer
with MySQL, PostgreSql, SQLite and Oracle support
Linux Platform Developer
mariano.difelice@gmail.com
Tel. 0735 703735
Cell +39 339 6407211
Ok Andrea, grazie mille!!!
Andrea Gavana ha scritto:
···
Hi Mariano,
On 5/24/07, Mariano Di Felice wrote:
You can use a lock-file system, as:
On Windows:
win32file.CreateFile( <path_file>, <filename>) , GENERIC_READ |
GENERIC_WRITE, 0, None, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
On Unix: ( linux & mac ):
fcntl.lockf( os.open(<filename>, os.O_RDWR), fcntl.LOCK_EX|fcntl.LOCK_NB
)You can utilize these methods at start-up: if it generate an exception,
another app is already open!!!
Great, not!!wxPython already does this for you, platform independently. You don't
even have to bother about platform-specific code to do that. Just see
the post I sent few minutes ago.Andrea.
"Imagination Is The Only Weapon In The War Against Reality."
http://xoomer.virgilio.it/infinity77/---------------------------------------------------------------------
To unsubscribe, e-mail: wxPython-users-unsubscribe@lists.wxwidgets.org
For additional commands, e-mail: wxPython-users-help@lists.wxwidgets.org
--
/\/\ariano Di Felice
Java PHP Python Ruby programmer
with MySQL, PostgreSql, SQLite and Oracle support
Linux Platform Developer
mariano.difelice@gmail.com
Tel. 0735 703735
Cell +39 339 6407211