How To Process Windows Messages
Aug 31, 2010how to process windows messages in vb.net , article, website or any.
View 3 Replieshow to process windows messages in vb.net , article, website or any.
View 3 RepliesI 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 ?
View 3 RepliesI have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
View 4 RepliesI've got a winform that has a button that runs an exe from the command prompt (process). Since the cmd window pops up and goes away so fast, I need to kno if there's a way to capture the messages that were sent in the cmd window, within my Windows form. (like make it write to a log file)
View 1 RepliesI have a small windows application that gets word documents from a source folder, prints the documents and moves the documents to a destination folder.
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Where does VB .NET define common window messages like WM_SIZE, WM_Activate etc. so I can handle such messages?
View 4 RepliesI'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...
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.
View 2 RepliesIs 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
View 8 RepliesI 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.
View 3 RepliesThis 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
View 5 Replieswe 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.
View 2 RepliesI'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.
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:
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I have created a Windows service in VS 2005 that monitors a folder for XML files, reads some data elements from the XML using XmlDocument, then copies the files to another location. I find that when I drop 2 or more XML files into the folder simultaneously, it processes them with no problems, but when I drop the same files into the folder one at a time, I will get an error on the second file: "The process cannot access the file <my file> because it is being used by another process." If I stop my service, restart it, and drop the second file into the folder again, it works the second time. I am confident that no other program is accessing this file at the same time as my service. My impression is that the processing of file # 1 is somehow not releasing all of the resources, leading to the processing of file # 2 mistakenly thinking that it can't access that second file.
Dim FileWatcher As New FileSystemWatcher()
It points the watcher to my folder, sets up an event handler, then enables the watching:
FileWatcher.Path = InputFolderPath
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I am trying to write a Windows Script that will allow me to monitor the following: That 2 x seperate but specific processes within Component Services "Running Processes" list are currently running and have not reset within the past hour. If I already know the PID, then I can retrieve the CreationDate (I assume which I can use to check for restarts? or is this the actual process creation/installation date) for each specific process, however if a restart occurs the PID will change and my script needs to know what the new PID is without me telling it!
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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.
View 6 RepliesI have developed a Windows Service in VB.Net (VS2010) which is running on Windows7. I am trying to get "MainWindowTitle" for processes thru their process object but it returns empty.
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i'm making a little app in which i need to enumerate all the windows of a specific process. i managed to do that but through enumerating all the windows in the system and then just test if it is the process i'm talking about or not by using
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but this method seem to take a lot of unnecessary time. is there a wind32 function that can allow me to enumerate the windows of a specific process giving its handle.
I'm printing pdf files via the below code in a service. In Windows 7 this works really well, In Windows Vista, nothing happens at all? What am I doing wrong?
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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.
View 3 RepliesI 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.
View 3 Repliesi have just converted it from vb6 to vb.net 2005 i am getting a error and do not know how to solve it it worked before in vb6 i have attached the project in a zip
Option Strict Off
Option Explicit On
Friend Class Form1
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Second, I have a question which I have been trying to find answer for a wile but without any success.How can I monitor Windows Process for any change (create/kill) after run my app ? the only way I have think about it is that used two lists, the first one load the process list on it and the second refresh each 1 sec to get the new one and compare the two to know the difference, but its useless because you cant know who killed or created the process and other information.
As I have been read before, I guess there is a need to implement windows API, hook to detect process changes ? Is there any idea or solution for this?
Note: I am using VB.NET (2010)
Googled this for the last hour and can't seem to find what I am looking for. for example have firefox open twice, and it has one process, firefox.exe the following code is run:
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I am trying to run a process started with the following VB statement.
The process will start fine with the proper admin ID that I specify. I have verified this by starting a CMD shell and batch files. They all show the user is my local admin account. However, if I try to run defrag or chkdsk, both commands tell me that I do not have authority to run them. Even though the processes are running under the admin account (shown by Task Manager).
The program is compiled on a Win XP SP3 machine (32-bit) using VB Express 2010. The executable seems to work fine on XP. But when I copy the .EXE file that it generates to my Windows 7 64-bit system, I get the above problem about it not having authority to run these two utilities.
how to hide process in the taskmanager of windows 7 in vb.net?How to hide any process in windows 7 using vb.net.
View 19 RepliesIs there any way I can get the memory usage for all processes currently running on a machine in vb.net?
View 1 RepliesHave an EXE (Let's call it EXE1) that creates a process to run a second EXE (let's call it EXE2) EXE2 (which we didn't write nor can we adjust) has a visual interface.
View 4 RepliesTurns out this impersonation with .NET's security only allows application-level access. Since the COM object is at the system level, the impersonated user still cannot instantiate it. I figured this out by right-clicking the executable and selecting "Run As...", the program functioned fine. I found out that launches the program with system access (assuming the user you are running it with has those credentials).Now I am in the process of creating an external program that will launch this application using this method.
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