Interact With Windows Messages?
Oct 5, 2011
I'm Writing a program for my VET IT class at school, so other IT students dont ruin computers we have set up. the program is working great, with only one problem. the program carries out its task, even during debugging (Although it shows an error.) the problem is with windows. in order to stop users from pressing the windows key, the program turns of windows explorer when run, and turns it back off afterwards. before doing this, windows asks for permission. does anyone know how to use visual basic to automatically interact with this messagebox?i have uploaded a video showing my program in action and the problem. (Will Comment With the video when it is done oploading 108 minutes remaining...)here is my code
<REMOVED MALICIOUS CODE>
Below is an image of the error message i receive in visual studio, and when running the .EXE from the [attachment=25889:Untitled1.jpg
how do i automatically lcick continue on this error box, because my program runs fine when continue is clicked...
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Dec 10, 2011
I want to use spy++ or Winspector But from what i Read they Dont work on windows 7 64bit Correct ? Im trying to read WM_COMMAND Messages from a App.And whenever i Select 'Log Messages' And find the windows etc.Nothing show's up. Is there a alternative ?
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Apr 27, 2009
How can my VB.net application interact with windows modal dialog boxes?
For example when you click an HTML <input type=file> the dialog that opens is a windows form that isn't in my application, so how can I manipulate it?
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Apr 28, 2010
I'm trying to write an application in VB 2010 that will allow me to send out stop and start commands for two services. I can get this to work in a batch file but not in VB, using either NET STOP and NET START and also using SC.exe Stop and SC.exe Start. But I don't seem to get anywhere if I try to use this in VB. So far this is what I have written, using the Print Spooler service as an example. The two services I actually want to stop and restart are the Server and Client services for efpos terminals that are attached to the computers. The service fails from time to time and I want to provide a solution for our users that is quick and easy for them to use, and most importantly doesn't require them to restart the computer, while they have a line up of people waiting to pay.
Code:
Private Sub SpoolerStop()
' Stops the spooler service
Dim StopSpooler = "C:windowssystem32sc.exe stop spooler"
End Sub
No matter what search terms I try in Google I get very little on using VB to interact with Windows Services.
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Sep 24, 2009
I've seen loads of programs that use an icon in the system tray to let you interact with a windows service that is running on your machine but I am curious as to how this works. As I understand it, unless a service marks itself as 'interactive' then it has no way to communicate with the user's desktop and doing so is discouraged by MS (and even causes an alternate desktop to appear temporarily in Server 2008 in some cases). So I want to try and avoid doing this but I cant think how else I would do it, and even if I marked my service as interactive I'm not too sure how I could actually get it to show a notification icon in the system tray.
I assume I would have to use Windows APIs, unless just using the windows forms NotifyIcon class would work. I considered just having the system tray icon in a totally separate application that just communicates with the service via named pipes or TCP etc but I'm pretty sure this isnt how other programs do it because with most of them if you just kill the process that the service is running in then the icon disappears so it must actually be directly running from the service.
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Jun 14, 2011
I'm using SHDocVw.InternetExplorerClass to scrape a webpage. It works fine in XP, but when I try to run it in windows 7 I get an error:The interface is unknown. (Exception from HRESULT: 0x800706B5)
When I run visual studio in administrator mode it works fine, but the published application has to be run in administrator mode too, which isn't acceptable.
Is there any way to get around running the application in administrator mode?
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Mar 2, 2012
I may be the only person still automating excel this way and I am looking at doing it in ways that better handle COM objects and such, but for now I just importMicrosoft.Office.Interop.Excel and go for it. Something that gave me a lot of grief at first was hanging excel.exe processes, but there are tons of resources online for fixing that. At this point I am pretty confident in my abilities to handle it.One thing I did notice and was wondering about is how does closing a windows forms application interact with excel.exe running in the background and likely more specifically the garbage collector. I have written quite a few excel automation projects and noticed that after I run my program .exe and it has completed there is an excel.exe process that hangs on until I close the pop up window from the windows forms application. Why is that happening?
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Aug 31, 2010
how to process windows messages in vb.net , article, website or any.
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Sep 29, 2009
Where does VB .NET define common window messages like WM_SIZE, WM_Activate etc. so I can handle such messages?
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Sep 22, 2011
I have a .Net Console application which displays thousands of lines on the console each minute. I want to convert it to a Windows Service, however I still need a way of viewing these messages. There are far too many messages to write them to the event log or even a standard log file. I was wondering if there were a way to write a systray app that could simply intercept these messages from the service and display them in a console window. I have no need to save older messages, I only need to see current activity.
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Jan 23, 2009
Is it possible to catch windows messages when the application isnt in focus ?, its not for anything in particular, I have just been playing with wndproc and was just wondering
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Oct 27, 2009
I have a console application where I successfully have added custom menu item in the application's system menu using the Windows API calls. How do I hook into the events to capture the event raised when the user clicks on one of these menus? All my Google results talks about overriding the WndProc method, but this doesn't exist in a console application.
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Jun 5, 2009
This may seem complicated but it's a somewhat basic concept, just probably a complicated execution, I am trying to create a program that will allow you to basically "IM" between computers on a LAN network. That's the concept, I plan on doing this by generating .bat files, executing them and printing the last few messages sent in a label, the big problem I have is receiving messages, I have no idea whatsoever how to even go about finding out how to take the messages received from the messenger service and print them into the label, any ideas?EDIT: This is in VB.Net 2008
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Feb 24, 2009
we know that vb using windows messages for raising events etc.. so if we move mouse cursor windows sends mousemove message to our application (WM...) or something like that. my question is: can we send windows messages to an application? i know usage of sendmessage api but its not working. im simply wanna send wmkeydown message to notepad and notepad should get message and write it to the text area right? am i wrong? i tried several ways but didnt worked.
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Sep 16, 2009
I'm developing a program where I've had to add a keyboard shortcuts system. The problem is it uses a third party OCX for a part of its display, and it is catching some essential WM_KEYDOWN messages when in focus, like Ctrl+C, Ctrl+V, etc. I've tried catching the WM_KEYDOWN message through WndProc, but the message is not propagating, so I guess the keyboard messages go from the inner container to the outer one, don't they?
The WM_KEYUP messages can be caught tho, but I'd prefer to be able to catch some of those messages on the KeyDown event. I'm aware I could make some low-level hook, but I'd like to avoid this workaround. Well, if the WM_KEYDOWN message goes from the OCX to its top level container, I guess I'll have to treat those key combinations in the KeyUp event.
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Sep 24, 2008
here I am again I have written a small class called 'Messages' that holds the user messages.The case is that I am not being able to import it. Here it is:
[Code]...
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Jun 5, 2009
I'm trying to make a LAN IM client using the net send command and I was wondering if there is any way to capture the text of the messages received through net send and display them in a label.
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Jul 10, 2009
how can i modify the windows messages so my tabcontrol recognizes the tabrect part of the tab as a viable drop target?i've tried debug printing the windows messages but its hard to pick out the right one.
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Feb 9, 2009
I am in the process of developing a messaging framework for a windows application that sends messages to a java application. To be precise when the win app wants to send a message it simply drops the message in a common database table which will be picked up by the java app. The windows application is deployed across 10 application servers (10 instances) over citrix for load balancing.Each instance of the application is capable of sending a message to the java application and each of these messages should have a unique id. From my end I need to make sure every message generated has to carry a unique id so that they can be identified when necessary. All the messages can be cleared every day or two.i am not quite sure about a best method of achieving this. Initially I wanted to create a static method that serves the next available id (incrementing the last id by 1). But this approach willn't guarantee unique number as the application starts only when at least one user is logged on. For e.g .On one server the app starts when a user logs in, he then sends a message and then the application stops when that user logs off. So when a next request for the app comes to that server a new instance will be started.
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Mar 12, 2010
Have a Windows app that needs to interact with a stand alone program that is accessed using cmd.exe. From Windows app, I can execute cmd.exe but cannot interact with it. Tried SendKeys, but this only sends one key at a time (sometimes more, but inconsistent) with multiple cmd.exe windows opening. Need to be able to send a whole command (string) to only one cmd.exe window.
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Feb 18, 2009
[URL]
I am trying to send keys to another program but i dont know how to write the code to do it and would i have to add a path to the other programs .exe?
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Nov 10, 2011
I am trying to Interact with VB API to Pro/Engineering.I got some information that we can add Reference Pro/E dll using Add Reference -> COM then we can use it.But I have issuse that how to get current session which is already runing in my machine? how it will find object of Pro/E (like one shape already created)?
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Dec 23, 2009
i load a page via WebBrowser.document class, I want to literally "click" elements in the DOM using VB.net programmatically. I dont want to use the classic WebRequest class.how can i do this ?
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Jan 12, 2011
I'm looking to pick up a programming language. I've viewed some source code of both VB and C# and VB looks like something that I can pick up well.My question is can VB handle creating apps that will interact with the web? Things like signing me into accounts, downloading information, things of this sort?
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Apr 9, 2011
how to display and interact with a website, at the moment its just research on how to go about it. Once i start i may need some more assistance. But for now just research At the moment Ive came up with using WebClient and HttpWebRequest/HttpWebResponse to interact with website data. And i know VB.net has an inbuilt site viewer (just a wrapper for IE).The website im using is an Intranet page for doing VOIP calls. It uses a large collection of JS(jQuerry) mostly. I can probably get the dev to make a .php file to
<?php
print_r($_GET); Prints all GET variables in a quite readable manner.
print_r($_POST); Prints all POST variables in a quite readable manner.
?>
to find out what GET's and POST's there are, but I'm not sure if JS stuff gets put in as a GET or a POST as its in the DOM.So all in all,I'm wanting to make a "Desktop" variant of there client. So basicly just a viewer of the dial pad. And detection of new calls in the queue, things like that. So i want to read data from the website, display the dialpad(just showing a segment of the website) and send the request to accept a call(and maybe a few other small pieces of data).
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Aug 3, 2011
At user login, launch an app I have created. This app opens a web site in a webbrowser control, logs the user in to the web site, and parses links from the resulting web page. These links are links to launch citrix sessions on another farm.
Create another app that appears on the start menu for the logged in user. User clicks on this app, it communicates with the launch app to basically click the href associated with the citrix app within the webbrowser control. Then this app will go away...
I have already coded the first app and figured out how to click links within the webbrowser control. What I can't figure out is how to go about implementing the second app, that runs as a separate app, but communicates with the first app to do its business. I see a plethora of options such as MFC, AppDomains, RPC, and so on. My question is which is the best practice to have one app interact with another and have the other app take actions based on that interaction? I prefer to stick completely to vb.net.
A good example of how I would like this to work - a web browser (IE, FF, whatever) is open on the desktop, user clicks a link in an email, link opens in running browser. An action in the mail client causes action in the browser.
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Feb 17, 2011
Im not understanding something or I am missing something.I can't use: "Imports Microsoft.Office.Interop" as it is not recognized.How do I interact with an Excel file? None of the examples I have viewed have been able to work.I opened one VBform (only the form) by ".paul." (in his sig) but could not get it to convert to 2010 and although I was able to get his code loaded I could not use any of it.The strange part is in his module there were no errors, import (copy and paste) any of it to my project and everything had errors.I believe .pauls.'s example was:"Imports excel=Microsoft. Office. Interop" which was not being accepted in my project.
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Aug 25, 2011
I am trying to write a program that displays a medium opacity image as the topmost form. that I can handle, the part that is giving me trouble is that I want windows to "ignore" the topmost picture form and allow me to interact with any forms behind it (mine or otherwise) as if the see-through form isn't there. I have searched all over but cant seem to find a way to do this.
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Oct 7, 2009
Basically all I want to do is to interact with webpages using my programs.. To be more clear, Im trying to make a chat client, but theres one thing that I dont know how to do.. For example, I want to write "hello" and press the "send" button, so it will send "hello" to the chat room... Or better yet, Let me give you a better example.. Lets suppose I wanna log into my space, but I wanna do it trough my application, so when I write the email and the password it will log into my account.
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Nov 3, 2010
How I can make my program to interact with all files that associates with, for example when u install adobe reader all pdf file get the icon of adobe and then are opened using them.
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