Monitor Information - Rotate Screen When Message Detected
Dec 15, 2010
I got this monitor that can turn 90 degrees & another program will rotate the display when it detects it has been rotated, I have a few questions though.
1.How can I detect when the monitor has been rotated (the monitor is hooked up via vga & no other cable goes to PC so I am guessing the message is sent across the vga cable).
2.How can I make it actually rotate the screen when the message is detected that the screen has been rotated?
I would download the other software but it's just some bulky & slow software for a small thing, windows has the ability for rotation built in, just not the auto rotation feature like the program, I just need to detect the message & make windows rotate the screen.
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Jun 9, 2011
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
[Code]...
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May 15, 2009
I would like to get the screen dimensions so I can programatically change the size of a form upto these values. I'm new to .Net and things are little different then they used to be in earlier version of VB. How do I do it?
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Jul 18, 2012
I'm just wondering if it's possible to add the mouse when capturing the screen or monitor in vb.net?
because I'm doing a project that would record the screen and I'm actually successfull doing that by capturing the screen and include it in a timer, but my only problem is the mouse or the cursor isn't showing.
below is my sample code.
Dim ScreenSize As Size = New Size(TotalScreenWitdh, MonitorHeightArray(0))
Dim BMP As New Bitmap(TotalScreenWitdh, MonitorHeightArray(0))
[Code].....
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Mar 18, 2009
I have some code that takes a screen capture of my monitor. This code seems to work perfectly OK and can take multiple screen captures, apart from when I do a Print Screen using the keyboard or open SnagIT 8, when I then try to run my code again I get an error "A generic error occured in GDI+"
I am at a bit of a loss, I have had a look on the internet, but everything I seem to find appears to be related to web apps. and access permissions. This is a window based application and therefore can not seem to find an answer.Below is the code I am running:
[Code]...
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Nov 28, 2011
I want to disable the funtionality of using a mouse when using a touch screen monitor in vb.net. the reason why i ask is because i want to limit users to only one option. is there a way I can code this in vb.net 2010.
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Nov 29, 2011
I designed a form which contains about 50 objects all kinds including tableadapters,buttions,grids, tabs. What is the best way to optimize the loading with less time consuming. I cannot split objects in on different form as all the objects has to appear on screen as a requirement.
But my primary question here is, i designed this form with all these objects on a 15" monitor which fitted 100% on the screen. Now i am using 17" monitor when i open this form on run time, all the objects are appearing as designed but theres a 30% form area which is left blank. How can i make the form objects resize automatically on run time itself to fit on different size of monitor with no area left blank.
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Apr 5, 2012
I'm designing a player application to accompany our phone system. As our calltakers take calls, it makes recordings of each call. They can go to a list module, find a recording and double click, which opens my player. The issue i have is that if the calltaker gets another call, my player doesn't know it and will continue playing. I'm looking for a way to monitor the screen in a particular area and when it sees yellow or red instead of blue, it will pause my player.
The phone system does not have any API's that I can hook onto, so I have to try it another way.
The screen resolution never changes and the queue buttons where they receive calls will always be static. When they get a call, a small area changes from the background color blue to yellow or red to indicate a call.
**EDIT Final Code based on answers below and question Memory Leak using GetPixel/GetDC in Visual Basic
Private Function CheckforCall()
Dim hDC As IntPtr = GetDC(0)
Try
[Code].....
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Nov 19, 2010
I am creating an application for a company and this CD will be distributed to hundreds of people. Many users will have different computer screen size and different screen settings such as their resolution set to 1024 x 728 and their monitor size 17" inches.
I noticed when I loaded the application on a different computer with different settings the application was to big for the screen and did not work. I notice that lot of other programs from microsoft resize their controls and text but never knew how they did it. How can I resize the form and control according to the user's setting.
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Jul 16, 2010
I have to know how to set system resolution of all tools in forms, which i using for my application.
I attached two screen shots. When i work my application with my system, form window and their tools placed correctly with my monitor fit(15 inch monitor).
But when i work my application in 21 inch monitor, all tools re arranged and
not in format. post me the code to set resolution as per system??
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Feb 16, 2009
I want to develop an application that gathers event messages of windows and show them on the screen as messages. For example I want to get a message when I receive a new email or when I close an application I want to get a message on the screen that x application is closed.
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Mar 19, 2012
I 'm running a multithreaded VB.NET program. After running a particular task in the environment I'm displaying a MessageBox to indicate that the task is complete. Everything works fine, sending data, receiving data, displaying the data, etc. When I display the MessageBox and I click outside the MessageBox, the MessageBox goes behind my Main Screen.
[Code]...
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Oct 31, 2011
I have an application with a SplashScreen. While loading the application, the application will check certain conditions and if the condition fails it throws a message window. I problem is when the message window is thrown it is displayed just behind the splashscreen and user is not able to see the message and unable to understand whats happening while the SplashScreen is displayed as it is till he clicks ok on the message box.
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Jul 2, 2010
I'm starting to learn programming in Visual Basic .Net , I need to open an excell file show the information on the screen,
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Sep 26, 2010
I have one issue with screen resolution. I want to know if is possible in my VB app to catch the moment when the resolution of screen are changed with a mesage. For example i have now the resolution 1920x1080 but when the user change the resolution to 1024x768 i want to catch this moment to change my controls size in app For Now in my app i get only the current resolution:
[Code]...
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Sep 9, 2010
I want to make a process monitor tool with WMI that monitor the processes created or deleted, but the code will not work. Note to reference System.Management,
CODE:
Code dowload:
CODE:
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Dec 17, 2009
how do I program a .net framework message dialog screen in to the catch and try command
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Jan 31, 2011
Can I monitor the registry for changes similar to how sysinternals process monitor does it in VB? I have checked many different articles and C# samples but not come any closer to getting an answer, I would like to know if there an easier way (a VB sample perhaps)that you folks can share. Ultimately I'd like to be able monitor other things too like file system, processes etc but wonder most about how the registry can be done in VB...Would using system.management be a start? Or WMI? if so is there a nice VB sample..
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Oct 12, 2011
I have small lightswitch application having CreateNewUser Screen.Screen fields comes from Datatable added in DataSource, I have made all Validattion of fields at DataSource side.However i have added one Custom Control in the screen named : Re-TypePassword.Whenever user click on save button I want to match the Password and Re-TypePassword and want to prompt user a validation message if Password and Re-TypePassword are different.how can i display that validation massage ? ( I mean i want to add validation message to Summary of messages that appears at the top of screen)
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Jun 11, 2011
how to send a message to another computer in my companys network using visual studio 2008...I would like to be able to list all the computer names on the network and select certain ones and send them a message that would pop up on their screen
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Feb 4, 2010
Im trying to make a form popup on the bottom right hand corner of my screen to display a message when the application opens.I know i can set the location in the properties but that may vary depending on the monitor the application is displayed on, how can i code it so that it can detect were the bottom right hand corner of any screen is ?
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Sep 29, 2010
I have recently started playing with sockets, so now i have set up an instant messaging app. it works like it's supposed to however, theres a slight problem. short of arranging for both parties to come online via email or something there's no way for the other person to know that someones waiting for them. So i'm basically looking for a way to send a pop-up message to tell the other dude to get his ass online,is there a way to display a message on a target pc's screen without a client application running and actively listening for an incoming command?
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May 27, 2010
I have the following windows service file:
Imports System.ServiceProcess
Imports System.IO
Public Class fswService
[Code].....
2 problems: first, intellisense error saying: 'fswService' is a type and cannot be used as an expression. second, I can not figure out a way to pass on to the service the path of the folder to watch (which is stored at My.Settings.userPath).
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Jun 29, 2011
BTW this issue occurs in any MS office program when the VB.Net (or even VBA) is processing information.Example: In Excel, a worksheet is displayed on the screen. I start either, a VB.Net or VBA procedure and within 30 seconds the Excel worksheet (previously displayed) blanks out. In both VB.Net and VBA,ScreenUpdating = False. My expectation is that the previously displayed screen would stay static as if I left my desk to get a cup of coffee; came back and the same ole Excel worksheet was still there?Of course, setting VBA Screen Updating = False accomplishes two goals: 1) speeds up processing and 2) saves the user from seeing unnecessary "garbage-processing" steps.Why does VBA or VB.Net ScreenUpdating = False not freeze the screen at the time of its invoking?
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May 27, 2011
I have been searching a lot online but couldn't find a solution for my problem. I want it to refresh every certain interval of time without this message to display. Now Ican't minimize my program because I'm putting an automatic Sendkeys.send("{Enter}") after the refresh to get rid of that message by clicking on "Retry".And If I minimize it the Enter will be executed on the active Window, which might be any other Window.
I hope that you understand what I mean, If not, I will clarify more.
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May 18, 2011
I'm getting this message in my 2010 debugger suddenly for some reason:The CLR has been unable to transition from COM context 0x4c4b68 to COM context 0x4c4cd8 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.
It happens while I am looping through a datatable. In each iteration I do a SQL Select lookup and a a SQL Update if I don't find a matching record.
For Each drCurrentRow As DataRow In m_Dataset.Tables("Group").Rows
Dim boolFound As Boolean = False
CheckForRecordInTemp(boolFound, drCurrentRow.Item("ACTIVITY_GROUP"))
[code]....
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Jul 7, 2011
Am getting this error when am running the code to open/close the CD try:"PInvokeStackImbalance was detected Message: A call to PInvoke function 'TabsTest!TabsTest.Form1::mciSendString' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature"
[Code]...
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Feb 7, 2012
I am running out of function keys and it will be nice if I can double up on some of them with the Shift Alt or Ctrl keys.I am using
if e.keydown = keys.F3 then{it does what it is supposed to}end if I tried e.keydown = keys.F3 AND e.keydown = keys.Shift but it gets ignored. Am I seeking the impossible or am I just missing something?Can some one tell me what I am missing or point me to an example?
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Dec 3, 2010
CLR detected an invalid program
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Apr 14, 2011
I am using the following function within a WndProc override:
[Code]...
Edit and Possible Solution: Based on the answer at DisconnectedContext MDA when calling WMI functions in single-threaded application I think the solution here is to call GetPortName() outside of WndProc. I will test this tonight and post my result.
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