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by: bazad |
last post by:
Hi,
I'd like to understand consequences of Application.DoEvents call.
Does it create a new thread?
Thank you
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by: Ollie Riches |
last post by:
I understand the use of Application.DoEvents() to process all outstanding
messages on the message queue in a winforms application if you have long
running process on the UI thread. But can anyone explain to me why I need to
call DoEvents when I am using a COM component that calls back to into the
..Net application? - If I don't call DoEvents after receiving a callback then
sometimes no more messages are pumped, it appears that the message...
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by: Ralf Gedrat |
last post by:
Hello!
I have a Application, this throws after some time following exception:
Item has already been added. Key in dictionary: "- 1" key being added: "- 1"
I use Application.Run with ApplicationContext.
This error message comes from deeper levels must be thrown (mscorlib.dll?!)
?.
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by: RSH |
last post by:
I created a new Windows Form project and I created a simple richtextbox to
write to and I am looping through a simple example but obviously the screen
isn't updated it only shows the first occurance.
I have used Application DoEvents in the past to update the screen which
works. but for some reason in this project when i use Application.DoEvents
i get the error... "DoEvents() Is not a member of DTS.Application"
How do I make the...
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by: TrtnJohn |
last post by:
I have an application where I would like to block waiting on an asynchronous
event and still process messages. I can implement a hard loop to block such
as:
Do While StillWaiting
Application.DoEvents
Loop
In this case the asynchronous thread can just set StillWaiting=False when
complete.
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by: Amjad |
last post by:
Hi,
Is there an equivalent to the "Application.Doevents" method in modules or
Windows services?
I want to make a Windows service that calls a DLL. The DLL would have all my
functions and it would be doing all the job, but some of the functions that
I'm using require calling something like "Application.Doevents" and I can't
use this because the DLL module is not an application.
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by: james.jdunne |
last post by:
System.ArgumentException: Item has already been added. Key in
dictionary: "-1" Key being added: "-1"
at System.Collections.Hashtable.Insert(Object key, Object nvalue,
Boolean add)
at System.Collections.Hashtable.Add(Object key, Object value)
at
System.Windows.Forms.ComponentManager.System.Windows.Forms.UnsafeNativeMethods+IMsoComponentManager.FRegisterComponent(IMsoComponent
component, MSOCRINFOSTRUCT pcrinfo, Int32& dwComponentID)
at...
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by: Alan T |
last post by:
I tried to use a thread to process a iterative execution of processes but
afraid my thread is not thread-safe.
If I am not using a thread, my main form will become 'white' when switch
forth and fro between other applications. So now I tried
Application.DoEvents(). But it seems does not help, my main form still
displays as 'white' when switch between other application.
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by: Don |
last post by:
I have a WPF application in VB in VSTS 2008 RTM. I am trying to
"blink" (momentarily clear) a field of data if the data is reloaded
from the database to give the user some visual indication of the LOAD
operation.
So on the LOAD button I clear the text fields, do
mainCanvas.UpdateLayout( ), and the reload the text field from the
database. But the text fields are not cleared long enough to see them
blink.
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: Oralloy |
last post by:
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 |
last post by:
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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
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 |
last post by:
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: 6302768590 |
last post by:
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 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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