Forms :: Check If Program Has Been Opened Before?
Apr 15, 2009
I have my program (Student Pad - The Project - Haxaro Freeware) and it has gone fairly large. In my next release, i would like to know how many user approximatly are using it, so when ever a user opens my program for the first time on that computer, it sends me, or my website a report telling me that it was opened on a computer. so if 4,000 people download and open it, i should get 4,000 emails or reports
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Jan 5, 2010
I'm launching an Access ADE, using Tony Toews auto FE program. The AutoFE programs will, if newer version available, copy the latest version of the ADE from the server, then launch it. My code looks like:
Dim stAutoFE As String = "V:Appsautofestartmdb.exe /cmd /inifile: " & """" & "V:AppsAutoFESSP.ini" & """"
Shell(stAutoFE, AppWinStyle.Hide, True)
System.Threading.Thread.Sleep(1000) ' Time delay
[code]....
I had to put the Sleep delay in, otherwise the GetObject would open the ADE a second time.But I don't know how long the copy from the server will take, so I need to remove that Sleep line and check that the ADE has opened.
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May 25, 2009
I have a CheckBox Question in VB 2005, I will have a bunch of checkBoxes not checked but once I check them I would like to display the check the next time the program is opened. How would I do that?
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Jun 20, 2012
I am currently working on a program that has several buttons in it lined up. Each button goes to different applications (.exe programs). The program I am making is suppose to be a fullscreen program and won't let you see any of Windows when it's running.
Therefore I want to make a "back" button that always stays on top of any application and when I push it it will take me back to my WindowsForm (startpage of the program).I am also wondering if you can make it so all .exe programs only can run ONCE. So if I press one of the buttons saying "open notepad" I want it to work so it can't open Notepad once again making it two notepads open. Just go back to the first Notepad opened.
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Sep 6, 2010
I have question regarding how i can check if the form is opened or not ??
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May 31, 2009
I have 3 simple questions:
1. How to check if a form is opened?
[URL]
End If
2. How to play a sound (just a beep or something?)
3. When i have a string with keywords, separated by ","'s, how to convert this into a array? (F.A. Test1,Test2,Test3)
String.Split(",")
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Mar 10, 2010
Check If Folder Is Opened?
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May 1, 2012
I've got an application which I want to only have 1 open.How would I make it check if the application is already open and only open if it isn't? I've had the idea of using 2 forms, one of which is the proper application and the other which just checks if its running then opens the other form.I would imagine it would check if there's more than 1 of the process name running and if there is close all others?
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Nov 29, 2011
I tired this code to check if the Excel File is already open but didn't succeed
vb
Dim exl As New Excel.Application
If exl.Workbooks.Open("C: a1.xlsx") Then MsgBox("Yes")
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Jan 7, 2009
how can I check(with code) if an mdichild form is already opened or not. I have some mdichildforms that may open together. If an mdichild form is opened I want to dislpay the already opened form and not a new one.
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Apr 26, 2012
My program opens 4 excel spreadsheets updating info. I update one at a time and then close it before opening the next one.I want to add code to my program to test if the file is already open, before trying to open it. Occasionally someone will have one of the files opened and it causes a crash. If I test to ensure it is not open, then I can avoid this.
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Jun 21, 2010
What I wanted to do is close all opened workbooks. This code does the work IF there is at least one or more opened workbooks. My problem is IF there is NO opened workbook at all; It goes around unendlessly in the WHILE Loop. How do I not process the closing IF there is no any opened workbook at all? (NOTE: I found this code from somewhere else.)
[Code]...
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Apr 21, 2012
Situation: Two forms A and B get opened, but when I select A I want B to show on top of A if it's opened.
How would I do this without using top most?
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Jan 28, 2009
My program will need to store some settings for when the program gets closed then opened again. I would then like to reload the settings?
- Flat file
- Database
- Registry
- Other
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Sep 10, 2011
How do I close all opened forms which are created on the fly?
Sub OpenForms
dim F as new frmForm1
F.show
[code]....
I want to close all opened frmForm1?
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Jan 4, 2010
Can u tell me how can i find out the details of different forms already opened. I would like to list the same in one of my menus.
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Feb 2, 2010
I have multiple tabs opened in 'any browser' and one of it is titled 'LAME', how can i make links open(by buttons) in that tab? I have a simple form with two buttons,
Button one:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Process.Start("http://www.google.nl/sub1")
End Sub
[code]....
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May 8, 2012
I have code which saves DGV contents including check box columns as a comma separated text file. I also have correct code which will take the text file and re-insert it into the DGV at a later time. This all works.When I'm working on the DGV, I have this
Private Sub DataGridView1_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellValueChanged
If DataGridView1.Columns(e.ColumnIndex).Name = "Column12" Then[code]....
So that when the check box is true, columns 1 and 3 turn different colours, and when false, go to a yellow colour.However, when I "re-insert" my DGV info from my text file, the check boxes come back correctly - as true and false on the right rows - but columns 1 and 3 don't change colour. I've tried a "DataGridView1.Refresh" option but not getting it to work.The DGV is unbound. I need it to recognise which check boxes are true and update automatically when the information is opened from a text file.
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Oct 27, 2011
How to programatically find the Currently opened form's Name
/Active Forms Name
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May 27, 2010
I am developing a application where a url is supposed to be passed to Internet Explorer using a search button. But if more than one url passes it should open in same instance. I dont want new instance to be opened every time. I am using SHDocVw.dll for the same. I have coded for opening a new IE instance and URL is getting passed successfully. But meanwhile if I close that open IE then I get exception and my program dont work.
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Sep 24, 2010
I have an app that opens and closes several other forms. How can I stop the fade in out of the forms when they are opened/closed in used in Vista/7? It just gets annoying.
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Nov 7, 2011
Several years ago, I created a nifty data entry form that is called from a main menu. Due to recent user requirements, I had to create another form that is very similar to the data entry form. To prevent duplicate coding and testing, I created a class to inherit the existing data entry form. The issue is when I leave the class and return to a sub menu, the class is opening the main menu and the sub menu. How do I only return to the sub menu without the main menu appearing? Here is a snippet of my code. You'll have to scroll down to the very bottom to see the section that is causing issues. BTW, I coded the application in such a way that only one form should be open at a time.
frmMenu (main menu). This is nothing more than a bunch of buttons that allows the user to perform various functions.If user clicks button #1, open the data entry form:
Dim objFrm As New frmDataEntry
bolOkToCloseForm = True
Me.Close() '--- close the menu screen
[code]....
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Feb 9, 2012
For some reason, every time I hit the red "X" button to close the program. The program closes, but the process is still there. How do I make it so that if I press it, itll end the process too?
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Mar 31, 2009
I know you can open a windows program like calculator but is there anyway if calculator is open i can close it with code ?
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Jun 9, 2011
Is it possible to link a process (i.e. osk.exe) opened by a program so it dies when calling program dies?So, I start my application, it starts OSK.EXE, and if the program crashes, the on-screen keyboard is still there. Possible to link the two so that the process dies when the application dies?
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Jul 7, 2009
I'm using Visual Studio 2008 and developing a VB.NET application. I'm having strange lockup problems with my program, but only when Internet explorer 8 is opened.
When I cover my form with another window and then uncover it, I find that it has locked up. My program has no references to IE and the only thing it even has to do with IE is using Process.Start with a web address.
My program works fine and exactly as it should, but only when IE is not opened.
Does anyone know why a program would lock up only while IE is running?
Edit: I've done some digging and I've found the offending thread in my program.
I don't know what starts this thread or what it does, but when I kill it, my program no longer freezes. The thread is one of the CreateApplicationContext threads, here is the last few items in the stack trace of that thread.
6 ntkrnlpa.exe+0x897bc
7 ntdll.dll!KiFastSystemCallRet
8 mscorwrks.dll!LogHelp_TerminateOnAssert+0x61
9 mscorwrks.dll!DllUnregisterServerInternal+0x10523
10 mscorwrks.dll!DllUnregisterServerInternal+0x10542
11 mscorwrks.dll!StrongNameErrorInfo+0x34387
12 mscorwrks.dll!StrongNameErrorInfo+0x34815
13 mscorwrks.dll!CreateApplicationContext+0xbc35
14 KERNEL32.dll!GetModuleHandleA+0xdf
Process explorer says my program is using no CPU nor throwing any exceptions while it is hung.
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May 15, 2012
This always happens to me in Visual Basic. Whenever I save a project from one day and open it again using that same VB version the next day, I can never see the form design. But if I click on Debug, I can see the Form design and only use it as if it were a program.
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Jan 2, 2012
My program will need to store some settings for when the program gets closed then opened again. I would then like to reload the settings, and I was wondering what is the best way to do this with VB?
- Flat file
- Database
- Registry
- Other
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Feb 2, 2011
How do you clear the Recently Opened Program Lists in the start menu?
I've been making a computer cleaner, and I've Googeling and I guess binging so much to find an answer but i couldn't, does any1 know how?
The most I could find was: [URL]
BTW I know how to clear it, but I need to know with VB code.
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Oct 7, 2010
I have built up an interface in VB2008 with many textboxs and labels on. When I click "New", I would like to clear all the textboxs and labels, i.e. each with a NULL value. Meanwhile, I also would like to clear all the arrays behind the program, i.e. the arrays which are not shown on the interface but is important for the calculation.The only way I could find out now is to clear the textboxs, labels and arrays one by one. So if there are 100 textboxs, 100 arrays, I have to write 200 lines in total. Obviously, it is not expected. Is there any other quick ways to directly reset everything to the beginning when the interface is just opened?
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