Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to
sleep. How to do this?
thanks
mark
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
11  1954 
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to
sleep. How to do this?
thanks
mark
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event ( http://docs.python.org/lib/event-objects.html )
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Cheers
On 20 Feb 2007 20:47:57 -0800, placid <Bu****@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
http://docs.python.org/lib/event-objects.html )
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark
To set the event object
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandler.star t()
# do something here #
evtHandler.even t.set()
# do more stuff here #
evtHandler.even t.set()
</code>
Hope thats what your looking for.
Cheers
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
>http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark
To set the event object
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandler.star t()
# do something here #
evtHandler.even t.set()
# do more stuff here #
evtHandler.even t.set()
</code>
Hope thats what your looking for.
Cheers
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
On 20 Feb 2007 21:26:18 -0800, placid <Bu****@gmail.c omwrote:
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark>
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
Can I have the same thread process two or more events? Can you tell
how to do this? The code you gave is waiting on one event right. How
can I do it for more events?
thanks a lot!
mark
On Feb 22, 3:23 am, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 21:26:18 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
>http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark>
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
Can I have the same thread process two or more events? Can you tell
how to do this? The code you gave is waiting on one event right. How
can I do it for more events?
thanks a lot!
mark
I don't think a thread can block on more than one event at a time. But
you can make it block on more then one event one at a time.
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.events = [threading.Event (), threading.Event ()]
self.currentEve nt = None
def run:
while True:
for event in self.events:
self.currentEve nt = event
# block until some event happens
self.currentEve nt.wait()
""" do stuff here """
self.currentEve nt.clear()
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
what the thread does is sequentially waits for two events to happen
and then execute the same code. You could change this code to perform
different functions for different event objects.
Cheers
On 21 Feb 2007 14:47:50 -0800, placid <Bu****@gmail.c omwrote:
On Feb 22, 3:23 am, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 21:26:18 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark>
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
Can I have the same thread process two or more events? Can you tell
how to do this? The code you gave is waiting on one event right. How
can I do it for more events?
thanks a lot!
mark
I don't think a thread can block on more than one event at a time. But
you can make it block on more then one event one at a time.
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.events = [threading.Event (), threading.Event ()]
self.currentEve nt = None
def run:
while True:
for event in self.events:
self.currentEve nt = event
# block until some event happens
self.currentEve nt.wait()
""" do stuff here """
self.currentEve nt.clear()
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
what the thread does is sequentially waits for two events to happen
and then execute the same code. You could change this code to perform
different functions for different event objects.
Once the thread starts it is going to wait on the event that is the
first element of the list right? This would mean :
evtHandlerThrea d.currentEvent. set(): that I have only one event right?
Can you explain how I can have different event objects. I dont see how
I can do different functinos for same event.
Thanks a lot!
mark
On Feb 22, 10:20 am, mark <rkmr...@gmail. comwrote:
On 21 Feb 2007 14:47:50 -0800, placid <Bul...@gmail.c omwrote:
On Feb 22, 3:23 am, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 21:26:18 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
>http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark>
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
Can I have the same thread process two or more events? Can you tell
how to do this? The code you gave is waiting on one event right. How
can I do it for more events?
thanks a lot!
mark
I don't think a thread can block on more than one event at a time. But
you can make it block on more then one event one at a time.
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.events = [threading.Event (), threading.Event ()]
self.currentEve nt = None
def run:
while True:
for event in self.events:
self.currentEve nt = event
# block until some event happens
self.currentEve nt.wait()
""" do stuff here """
self.currentEve nt.clear()
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
what the thread does is sequentially waits for two events to happen
and then execute the same code. You could change this code to perform
different functions for different event objects.
Once the thread starts it is going to wait on the event that is the
first element of the list right? This would mean :
This is correct.
evtHandlerThrea d.currentEvent. set(): that I have only one event right?
this means that the current event occurred.
Can you explain how I can have different event objects. I dont see how
I can do different functinos for same event.
Thanks a lot!
mark
To run different functions for the same event is easy, just write a
wrapper class around threading.event () and include some method that
you will run and assign this to different functions for each
EventWrapper.
<code>
class EventWrapper():
def __init__(self,w ork ):
self.event = threading.Event ()
self.eventWork = work
def wait(self):
self.event.wait ()
def clear(self)
self.event.clea r()
def eventWork(self) :
print "no work"
class eventhandler(th reading.Thread) :
def __init__(self, events = None):
threading.Threa d.__init__(self )
self.events = events
self.currentEve nt = None
def run:
while True:
if self.events:
for event in self.events:
self.currentEve nt = event
# block until the current event happens
self.currentEve nt.wait()
self.currentEve nt.eventWork()
self.currentEve nt.clear()
def eventOneWork():
# do some event 1 specific work here
def eventTwoWork():
# do some event 2 specific work here
if __name__ == "__main__":
events = [EventWrapper(ev entOneWork),Eve ntWrapper(event TwoWork)]
evtHandlerThrea d = eventhandler(ev ents)
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
So you have a EventWrapper class that now contains the Event object
and a workEvent() method which is assigned to a function you create.
Hope this helps.
Cheers
On 21 Feb 2007 16:10:51 -0800, placid <Bu****@gmail.c omwrote:
On Feb 22, 10:20 am, mark <rkmr...@gmail. comwrote:
On 21 Feb 2007 14:47:50 -0800, placid <Bul...@gmail.c omwrote:
On Feb 22, 3:23 am, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 21:26:18 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 4:21 pm, "placid" <Bul...@gmail.c omwrote:
On Feb 21, 4:12 pm, mark <rkmr...@gmail. comwrote:
On 20 Feb 2007 20:47:57 -0800, placid <Bul...@gmail.c omwrote:
On Feb 21, 3:08 pm, mark <rkmr...@gmail. comwrote:
Right now I have a thread that sleeps for sometime and check if an
event has happened and go back to sleep. Now instead I want the thread
to sleep until the event has occured process the event and go back to sleep
class eventhndler(thr eading.Thread):
def __init__(self):
threading.Threa d.__init__(self )
def run(self):
while True:
time.sleep(SLEE PTIME)
''''do event stuff'''
The way i would do this is by using an threading.Event (
http://docs.python.org/lib/event-objects.html)
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.event = threading.Event ()
def run:
while True:
# block until some event happens
self.event.wait ()
""" do stuff here """
self.event.clea r()
</code>
the way to use this is to get the main/separate thread to set() the
event object.
Can you give an example of how to get the main threead to set teh event object?
this is exactly what i wanted to do!
thanks a lot!
mark>
oops I've miss-typed the thread variable name the following should
work
<code>
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.event.set()
# do more stuff here #
evtHandlerThrea d.event.set()
</code>
Can I have the same thread process two or more events? Can you tell
how to do this? The code you gave is waiting on one event right. How
can I do it for more events?
thanks a lot!
mark
I don't think a thread can block on more than one event at a time. But
you can make it block on more then one event one at a time.
<code>
class eventhandler(th reading.Thread) :
def __init__(self):
threading.Threa d.__init__(self )
self.events = [threading.Event (), threading.Event ()]
self.currentEve nt = None
def run:
while True:
for event in self.events:
self.currentEve nt = event
# block until some event happens
self.currentEve nt.wait()
""" do stuff here """
self.currentEve nt.clear()
if __name__ == "__main__":
evtHandlerThrea d = eventhandler()
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
what the thread does is sequentially waits for two events to happen
and then execute the same code. You could change this code to perform
different functions for different event objects.
Once the thread starts it is going to wait on the event that is the
first element of the list right? This would mean :
This is correct.
evtHandlerThrea d.currentEvent. set(): that I have only one event right?
this means that the current event occurred.
Can you explain how I can have different event objects. I dont see how
I can do different functinos for same event.
Thanks a lot!
mark
To run different functions for the same event is easy, just write a
wrapper class around threading.event () and include some method that
you will run and assign this to different functions for each
EventWrapper.
<code>
class EventWrapper():
def __init__(self,w ork ):
self.event = threading.Event ()
self.eventWork = work
def wait(self):
self.event.wait ()
def clear(self)
self.event.clea r()
def eventWork(self) :
print "no work"
class eventhandler(th reading.Thread) :
def __init__(self, events = None):
threading.Threa d.__init__(self )
self.events = events
self.currentEve nt = None
def run:
while True:
if self.events:
for event in self.events:
self.currentEve nt = event
# block until the current event happens
self.currentEve nt.wait()
self.currentEve nt.eventWork()
self.currentEve nt.clear()
def eventOneWork():
# do some event 1 specific work here
def eventTwoWork():
# do some event 2 specific work here
if __name__ == "__main__":
events = [EventWrapper(ev entOneWork),Eve ntWrapper(event TwoWork)]
evtHandlerThrea d = eventhandler(ev ents)
evtHandlerThrea d.start()
# do something here #
evtHandlerThrea d.currentEvent. set()
# do more stuff here #
evtHandlerThrea d.currentEvent. set()
</code>
So you have a EventWrapper class that now contains the Event object
and a workEvent() method which is assigned to a function you create.
THanks a lot! Does this have to have event1 and event2 occur in
sequence? Will this still work even if only event2 occurs and event1
never occurs?
thanks
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Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
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In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: Hystou |
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Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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by: agi2029 |
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Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
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The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
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I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
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Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
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Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
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How can i add a mobile payment intergratation into php mysql website.
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