How To Prevent Program Running Twice
Oct 24, 2011
i got 2 program here...exe and B.exe.. B.exe is external program.. how can i run my program just once at same time? all start from .exe.. if .exe running twice, a messagebox appear ".exe already running".. if .exe detect B.exe was running, a messeagebox appear "B.exe already running".. i'm using Visual Basic.NET..
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Jan 20, 2010
I want to prevent my program from running when it is already running.How can I do that in my vb2008 Code?
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Apr 4, 2011
Title pretty much says it all. Does anyone know a way to to prevent a computer from entering a low/non-processing mode while the program is running? I don't care about monitor modes, screen-savers, hard-drive spindown, etc (in fact, I'd prefer to leave those alone; I like it that it shuts the monitor off after a time period).Basically, I have an industrial program that needs to continually monitor a PCI card it uses for IO; and this activity alone isn't enough to convince Windows not to go into Sleep mode. We normally just shut the power-save features off, but we had an incident where a technician forgot, a customer's machine went to Sleep after the end of the shift, the pumps stopped recirculating, yadda-yadda big mess.
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Apr 29, 2009
I have a textbox1.textchanged event in my application.. so when I start typing into the textbox, it looks up the value of what I'm typing against a dataset. There is a datagrid in my application as well, and if i click a cell in the datagrid, it pastes a value into that textbox... when this happens, I don't want the textbox to do look up the value against the db.. I just want it to paste into the textbox without any further action..
[Code]...
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Mar 30, 2011
My program is an executable, but if it is run I notice that I can click on the executable again and two instances will be running. How do you prevent more then one instance from running?
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May 5, 2012
is it possible by 1 program to save settings to another program without running the program that is being edited?
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Apr 8, 2010
I have a small problem with my application. When the system starts up, the program starts with it, but runs hidden (registry key with paremeter). The program also has a GUI.I want it so that when the user clicks the desktop icon, it does not start a second instance of the executable, but instead reveals the currently running background process. Is that possible?i.e. when the application is started with the "-startup" paremeter, it loads a hidden form2, and closes form1. When the desktop icon is clicked, it loads form1, while form2 remains hidden.
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Aug 8, 2011
i want to be able to prevent an application from downloading. For example Utorrent. I have seen applications that can do this but never been able to integrate it in my own application. Also i have tried blocking the application's allowed ports in my windows firewall
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Jul 6, 2010
How can i prevent from closing a program even with the task maneger?
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Jan 20, 2010
I have a VB.NET program. In proerties/Application I checked Make a Single Instance Application. But it still allows someone from opening the program while already opened. How can I prevent this?
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Apr 15, 2009
I'm using Visual Basic 2008 Express Edition. When I have my personal program open, I don't want another instance of it to open. I would like it to detect if the program is already open and if it is, it won't open another.
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Nov 5, 2010
I'm working on a program that requires the user to input an integer. How do I prevent the user from entering a non-numeric value? I tried using the IsNumeric() function but I get an error before I can use it. I get the error at the console.read, before I can call the IsNumeric() function. [code]...
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Apr 16, 2009
I want to make it so my VB program can be registered to be used with only one computer & possibly be registered online.
(Yes i searched the site but i saw no useful program registering guides that i uderstood and worked with the newest version of Visual Basic .NET)
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Apr 28, 2011
my program freezes untill the loading has finished.Is this normal? And if it is then how can I prevent my program from not allowing me to go back to the other form untill the loading has completed?I'm using this url as a start up page for my custom browser;so can I prevent my program from freezing or not ?It looks as if my custom browser form keeps demanding focu
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Mar 22, 2009
How do I prevent the user from resizing my program during run-time? I know how to disable the max and min buttons at the top, but I can still click the edge and drag it to resize my program. I want to be able to disable this feature so my program stays the same size the whole time.
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Jun 26, 2009
I've been trying to open a program called 'DET 3' which is designed by the Honduran government and helps us pay taxes for the government. I've been getting this error message when I try to open the program "Component 'Mscomctl.ocx' or one of its dependencies not correctly registered: a file is missing or invalid" I need this program to work so I can pay my taxes before July 10th.
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Nov 17, 2009
I have built and deployed an application in VB2008. If I start the program from the start menu a new session will start and there 'll be multiple sessions of the same programming running. I dont want this behaviour! I want the program to start only when no other session of the same program is running. How can I do that in VB2008?
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Feb 12, 2010
How i can prevent the operation of more than one copy of the program at the same time.
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Mar 9, 2011
My program becomes unresponsive when I download Data using WebClient.OpenRead(). What can I do to prevent the program from freezing while downloading the Data?
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May 25, 2010
How can I prevent my Vb program from showing up on the task manager and in the process tab in task manager?
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Apr 18, 2012
How can I prevent debuggers from accessing my program?
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Jun 6, 2012
I wrote this VB program to be able to throw a device we developed into programming mode where we use an ATMEL Flip installer to upload new firmware. I can program one device after another running the application off of Visual Studio Express 2010 or Visual Studio 2010, but when I go to publish this file and run it on another machine, it becomes unstable and crashes after each upload. On those same computers if I run the raw unpackaged program under Visual Studio Express, the system does not crash, and I can program devices repeatedly.
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Mar 24, 2012
i created a windows blocker to prevent users access, and only give access to the computer for a certain time if they pay....In the block state taskmgr can not be accessed also no other method can close the blocker. but once the computer is unblocked for use it become vulnerable only to the taskmgr since i have to give access to the taskmgr when the program is not blocking access. Is there anyway to prevent my program from being KILLed in the taskmgr or is there a way to restart the blocker if the user KILLs the program?
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Oct 10, 2011
have you of any ideas in why does my software in vb 2010 still exist in the task manager (process tab), after i closed the program? i noticed it when i want to delete the .exe file.
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May 1, 2009
I want to create a program that will run every start of computer and will check if it is 9:00 AM and can only be seen at the bottom right cornner besides the clock. When the program executes must show an notification that the program is running.
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Nov 18, 2011
I am Matthew and I'm extremely new to coding and any sort of scripting language; yet I am highly interested in programming and want to learn lots about this subject. So to start myself off I am trying to create some applications which I could use in day-to-day life to just basically make life easier.So the first program I am trying to make I am already confused and not sure what the heck I have to do in order to get it functioning, I've looked on lots of videos on you tube for tutorials and they have all done a great job but some videos just don't answer my questions.When I click a button and "Form2.Show()" appears, how can I make it so that when I type text in a list box in form2, it doesn't disappear when I close it? Then once I have known done that, how can I make it so I can choose a random string of text in the list box on form2 to show up on the click of a button on form1? Then a final question is, How do I prevent fields being reset in form1 & form2 on program close? Also, is it ok for me to make a thread asking 1 simple question? or do I have to ask a handful each time to save threads or something?
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Oct 12, 2011
I had the battle system 60% worked out. Went to play some Dragon Age, when I came back nothing was working as the way I left it. I don't know what happened.The richtext box is supposed to disaply the attack monster description, and then it's name, the amount of damage it does. I had it so that I could attack, be attacked, and display damage, and attack discription of both player and monster. when I opened my project to work on it again, hardly anything was working right.[code]
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Apr 26, 2011
im a wrtiting a simple vb.net problem that when a button is clicked it launches the command prompt.all i need it to do is open cmd on a buttonclick. i have used [code]this works fine if i substitute iexplore.exe for cmd.exe but when i try to run cmd i get an error message below.
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Sep 11, 2009
I am writing a program (that i have recieved a lot of help with) that creates input files for another program. The bridge between the two programs is a program that has been named the task manager as like the windows task manager it shows what tasks are being done/have been done/are about to be done (or executed)
What i would like to know is how can i run the already installed bridge program from my program? Do i need to run it by opening the executable that contains it? Or by declaring the bridge program as a type/structure/class and going from there to open it?If you're not living on the edge, you're taking up too much room
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Jan 21, 2010
we have this situation, we need to 'force' user to do stock opname at specified time, so when the time has arrived..the stock opname program will run while their current running is'freeze' until the opname is done..
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