I have an application that has a tabcontrol to handle multiple documents, just like Notepad++. And I also have file association working correctly with it.All I want to do is to make it open the double-clicked file onto a new "codetab" instead of creating a new instance of the program just to open a file.
View 2 RepliesI'm having a slight problem getting my program to load a save file when double clicking the save file.I'm using the Command$() to get the command line argument. I can open a save file by dragging it onto the exe. But not by double clicking the save file (after it's associated with the exe).I though dragging and dropping a file on a program and double clicking the file would open it in the same way, but I guess not.So in short how does file association work and how do I get the file path set to a var when the program loads.
View 5 RepliesI have a tab-based application that handles multiple documents. It is designed such that the user cannot run multiple instances of application. Furthermore, the user can double-click on a document file, and the application will launch itself and open it.[code]...
View 9 RepliesBefore I start, I'm not 100% sure this is the right place to ask. Okey, so I'm making my own Notepad, which will contain newer features. (Private use only though) One of them being tab control.
Now I want the program to be in the "Open With..." menus for all files, so I can choose myself.
And if the program is already running when user opens a new file, I want the text to appear in a new tab, instead of a new window of the program.
I tryed to be straight forward, and keep it short. So if you need more info, fell free to ask.
I have tried to do this before with a custom file type for a text editor. I barely got it to work... and now I can't even find those files. Now I just want for when I make my NSIS Setup that the file association can allow the mp3 player to play the files when the file itself is double clicked.
View 19 RepliesI'm not sure if "Simpleton Technique" is the term used to call "opening a single instance of a form", so please, by all means, correct me if I'm wrong.I opened a child form using the simpleton technique. The situation is like this:
I have three forms (frmUserProfileManager, frmUserInfo, and frmUAC), and all are child forms of the MDI form, MDIMain.You first access frmUserProfileManager using the menu bar. It opens the form using the simpleton technique:
[Code]...
I think maybe it has something to do with the event (MDIMain_Load)? I feel as if the program is only making a child instance of the frmUserInfo once (since the program only loads MDIMain once). And after I close it (frmUserInfo), it loads outside the MDI. Another thing, how do you kill forms that were hidden using .hide()? Is .dispose() applicable?
I am looking for a way to make my app running in a single instance mode and showing the MainWindow of the first instance when another instance is launched.I do a quick search on the internet but I did'nt find anything to open the MainWindow of the first instance or it was for Windows Form not for WPF.
View 1 RepliesI have a single instance VB 2010 application I know how to communicate with the next instances run through the StartupNextInstance application event. The usual way of working with this is parsing command line arguments of the new instance and continue execution of the old instance. What I would like to do is replace the running instance with the new one. Is there any way to do this other than disabling the single instance property ?
View 1 RepliesI want to prevent file opening (temporarily) on certain files. I've tried encryption, which is fine, but a bit slow for my purpose. The actual end product doesn't have to keep some computer hacker type from getting in, just the lay user. I was wondering if it was possible to encrypt only part of a file and reverse this after or what options I had.
View 1 RepliesA VB.NET program needs to create a single PDF file from several PDF files.Is there a way to do this with a VB.NET or C# program?If not, is there a free add-on product that .NET can use to do it?
View 3 Repliescreating single instance form in MDI Application. How to check whether form's instance created or not?
View 6 RepliesI am having about 1000 MDI files which has to be merge into a single MDI file for printing.
i tried in MS dos with the help of copy command but icouldnt resolve.
i tried in Visual basic by reading the file in binary mode and converting them into ps files or mdi files which too result in error.
third and final i tried opening the file through word document libraries by referencing and priting in default driver with the help of hp ps drivers.
I've made a rudimentary program that combines multiple files into one single file. Currently if I combine two .csv files together the output comes out correctly for what I need, which is a coma delimited file. When I try to combine two .csv files into a .xls file it doesn't format correctly (I get all the data separated by commas, but thrown into one column in the .xls file). For this reason I believe I need to add a delimiter.I'll post my code below.
[Code]...
I am trying to develop an app that will export a large amount of zip files all of which have the same single file in them - simply named 'dw' (with no extension). They will all be in the same directory. I want the file 'dw' to be renamed to the zip file name + .tif. (I will actually eventually need for this to use the magic number to determine if the file is a .tif or a .rtf.) I have been able to get it to cycle through, if the file is NOT renamed. I seem to run into issues when I want the file renamed. It just creates the first .tif file and thats it. I think its actually just cycling through but everything is getting that same name. For the record i am not a programmer by trade, just trying to help with something at work - thus I know the code I have peiced together probably isn't 'by the book'
Dim p As New ProcessStartInfo(ByVal unzipit As String, ByVal zipdir As String, ByVal arg As String, ByVal arg2 As String)
Dim di As System.IO.DirectoryInfo
di = New System.IO.DirectoryInfo(zipdir)
For Each diar In di.GetFiles()
[code]....
I have files in a folder which i need to append and produce a single textfile.
1)I first select the folder using FolderBrowserDialog and write the path in the textbox.
2)By the click of a button I want to append all the files contained in that folder and write it in the same folder with the name of the textfile as new.txt
[code]This code open the FolderBrowserDialog and selects the folder and writes the path in the TextBox1..I need help to proceed with appending the text files within that folder
I am wanting to create a large amount of files all copied from a single original file. I then have a list of names in a listbox that each of of these files will rename to. However I am getting an error saying that the file already exists in the save location even though the files are saving to a totally different folder...
code below.
Dim Counter As Integer = listFileNames.Items.Count
Do Until Counter = 0
System.IO.File.Move(txtOpen.Text, txtSave.Text)
[Code]....
after downloading an emulator for the gameboy advance, all my icons hav turned to the adobe logo. When I double click on them, all that happens is the abobe reader comes up and says it can't open it. The only way I have found to open them is right clicking on them and hitting properties and clicking on shortcut ---> open file location and opening it from there.However I would like to open it regularly and I am not very computer savvy but I believe it has to due with file association.
View 3 RepliesI have 3 forms, say Form1, Form2, Form3. Form1 has a public method assigning an image to a picture box:
[code]...
The problem is that this code is Opening a new second instance of the first form (Form1), when I see in debug mode and move my cursor over the frmPers variable, It's value is Nothing, altough I am seen it at the screen ¿Why is this? I am loosing my hair after three days trying several forms to do it without any results.
I am trying to create a file association in my program, which requires me to create some keys in the registry. However, when I try to create the keys, I get a System.UnauthorizedAccessException.
I have tried searching for a solution, and the only thing I can find is various examples of passing a boolean value to request write access for the "OpenSubKey" method. My problem currently is not opening the key, it's creating it. I have tried several of the different overloads to no avail.
I am guessing that I will need to temporarily elevate the access of my app to create the registry key. What I don't want to do is permanently raise the access of my app just to accomodate this one, small function, which should only really be needed by the user one time in order to create the file association.
Here is my code in progress:
Private Sub chkSOPAssociation_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkSOPAssociation.Click
If chkSOPAssociation.Checked = True Then
[Code]....
I have a checkbox on my form. When the user clicks it, it sets the file association if the checkbox is checked, or else it deletes the association if the checkbox is unchecked.
I'm trying to use Adobe's command line parameters to launch a PDF file with a user's search term passed in automatically. Unfortunately, Adobe's syntax for this command requires me to start Acrobat.exe (or AcroRdr32.exe) and pass in parameters, including the PDF file name.I have users that might have any version of Adobe Acrobat from 5.0 up, or they might be using Adobe Reader version 5.0 and up. I know when I double-click a PDF file, Windows has an association with that file that points to wherever Acrobat.exe (etc...) is installed to launch the program. How can I get access to that information?I've looked in the registry at"HKEY_CLASSES_ROOT.pdf", but don't see much in there that would lead me to "c:Program FilesAdobeAcrobat 8.0Acrobat.exe" or wherever the program is installed. Does anyone know how I can access this information?
View 4 RepliesOk, I'm trying to tackle this topic again. I have searched for setting file associations in the registry, and I only find references to adding the association the ClassesRoot, which, in Vista 64, throws an Access Denied exception.I would like to know if it is possible to set the association somewhere other than classesroot in the registry. Or, if it must be set in HKCR, then the proper way to temporarily elevate the application to perform the registry change.
What should happen is user clicks a button in my program to add the file associations, a Vista security dialog pops up prompting the user to confirm the operation or enter administrative username and password, user confirms, application sets the file associations, then drops back down to regular security.
I have windows application and a form. If I open a form named "DetailForm" from main form named "Main1" by clicking the button, it should open only once. The problem I am having is, it is opening many instance of the form every time you click the button.
View 8 RepliesI then have an iteration (For Each loop) which lists all of the OUs on our site (set by the filter property). The issue here is within my treeview it lists everything without mimicing the AD structure we have.When searching on this it seems i have to change the search path to be one below the current OU and add it to my child node. I believe the search path is held in my RootDSE??, but when i look for the distinguishedName and try to pass that in i receive an
View 1 RepliesI am trying to remove the File Association I created in the Project properties tab 'Publish'/ 'Options'.I have tried deleting all the entries but is won't let me 'OK".Here is a picture of the evil dialogbox.
View 2 Repliesive got a custom archive type, which i have all the associations set to me application for, when the users double clicks these files i want them to auto import, but im a little stuck on my next step.[code]the tomove string would need to point at the file which was double clicked/ran, and the textbox1.text replaced with the file name of the file that was ran.[code]And the code runs, but i need to replace the "test" (previously it was textbox1.text) withthe name of the file which was ran, is that possible?
View 4 Replies[ First off, this is not really a VB question -- it's a Windows 7 question, but when I posted it on a forum for Windows, a Windows "Support Engineer" suggested that I post it here. So here goes ... ]I have an old custom program (written in VB6) that opens a custom file type, but requires a qualifier in the command prior to the file name, similar to this:
myprogram.exe /i "myfile.seo"
The "/i" stands for "input file".
Back in Windows XP, I was able to make some very detailed changes to the file association for the ".SEO" file type, so that the "Open" action could contain this command:
myprogram.exe /i "%1"
The result was that I could click on any .SEO file and the filename would be substituted into the above command, in place of the %1. This did exactly what I needed.I have been unable to find a way to insert the command-qualifier "/i" into the file association in Windows 7.For a specific .SEO file, I can create a .BAT file, but that's a very limited 'solution'.
I want to create my own extension without changing my registry file. I have a VB.NET project and I firstly want to create my own extension like ".abc" afterwards if there is any file like xxxxxx.abc when a person try to open this file I want windows to startup my project and open that file.
View 1 RepliesI'm trying to implement single instance application using mutex.the application can run only one instance from a given directory.i tried to implement it in Applicationsevents class but it's not working.I replicated it with a test harness with a single form.my ApplicationEvents.vb code:
Private Sub SingleInstanceCheck(ByVal sender As Object, ByVal e As Microsoft.VisualBasic.ApplicationServices.StartupEventArgs) Handles Me.Startup
Dim strLoc As String = Assembly.GetExecutingAssembly().Location
[code]....
it runs multiple instances.Things I am not able change:
1.project setting has "Enable Application framework" ticked
2. ApplicationEvents.vb handles UnhandleException which means i cant have a module as startup.
I'm using the VB.NET WindowsFormsApplicationBase to create a single instance app.he first instance (of course) starts the app, while I use StartupNextInstance to handle commands passed to the application from the command lineAlmost all ofthe commands perform an action with no return value required.However, there are a few where I'd like to get a true/false return value.'m having a hard time getting the next instance to exit with a non-zero return code.I've tried setting the Environment.ExitCode inside the StartupNextInstance handler and also tried calling Environment.Exit(-1) but that just kills the first instance.ll the documentation I've read says after your code is executed in the StartupNextInstance handler, it just exits but it doesn't tell me how I can change the ExitCode of the 2nd instance that will be closed.
View 4 RepliesI have a mdicontainer form that summons forms. My problem is when the a user clicks again the menu for that form, it also make another instance of it.
What I did is declare a public class with a public variable on it ex: Boolean isFormOneOpen = false. Then every time formOne opens, it checks first the global variable I declared a while ago if it's false, if it is, instantiate an object of a formOne and then show it. Otherwise, do nothing. Very static, imagine if I have many forms, I have to declare a variable for each form to check if it's already open. Maybe a method that accepts a Form? Or any more clever way to do this.