How can my VB.net application interact with windows modal dialog boxes?
For example when you click an HTML <input type=file> the dialog that opens is a windows form that isn't in my application, so how can I manipulate it?
I just downloaded the latest VB Express. It seems that thought the functions are available, there are many that are not as fully functioning as they should be, like PRINT dialogs and TIME/DATE dialogs, etc. Are some of these functions not fully developed in VB Express because they are only available to the licensed version?
View 4 RepliesI'm starting on a new project: multiple desktops I want to accomplish this by making a folder browser system like the desktop.I do not want to have all the file transfer actions invisible So: I want to have the normal file transfer dialogs displayed, with the progressbar, file information, just like windows.What code should I use to display windows dialogs?
View 5 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'm trying to write an application in VB 2010 that will allow me to send out stop and start commands for two services. I can get this to work in a batch file but not in VB, using either NET STOP and NET START and also using SC.exe Stop and SC.exe Start. But I don't seem to get anywhere if I try to use this in VB. So far this is what I have written, using the Print Spooler service as an example. The two services I actually want to stop and restart are the Server and Client services for efpos terminals that are attached to the computers. The service fails from time to time and I want to provide a solution for our users that is quick and easy for them to use, and most importantly doesn't require them to restart the computer, while they have a line up of people waiting to pay.
Code:
Private Sub SpoolerStop()
' Stops the spooler service
Dim StopSpooler = "C:windowssystem32sc.exe stop spooler"
End Sub
No matter what search terms I try in Google I get very little on using VB to interact with Windows Services.
I've seen loads of programs that use an icon in the system tray to let you interact with a windows service that is running on your machine but I am curious as to how this works. As I understand it, unless a service marks itself as 'interactive' then it has no way to communicate with the user's desktop and doing so is discouraged by MS (and even causes an alternate desktop to appear temporarily in Server 2008 in some cases). So I want to try and avoid doing this but I cant think how else I would do it, and even if I marked my service as interactive I'm not too sure how I could actually get it to show a notification icon in the system tray.
I assume I would have to use Windows APIs, unless just using the windows forms NotifyIcon class would work. I considered just having the system tray icon in a totally separate application that just communicates with the service via named pipes or TCP etc but I'm pretty sure this isnt how other programs do it because with most of them if you just kill the process that the service is running in then the icon disappears so it must actually be directly running from the service.
I'm using SHDocVw.InternetExplorerClass to scrape a webpage. It works fine in XP, but when I try to run it in windows 7 I get an error:The interface is unknown. (Exception from HRESULT: 0x800706B5)
When I run visual studio in administrator mode it works fine, but the published application has to be run in administrator mode too, which isn't acceptable.
Is there any way to get around running the application in administrator mode?
I may be the only person still automating excel this way and I am looking at doing it in ways that better handle COM objects and such, but for now I just importMicrosoft.Office.Interop.Excel and go for it. Something that gave me a lot of grief at first was hanging excel.exe processes, but there are tons of resources online for fixing that. At this point I am pretty confident in my abilities to handle it.One thing I did notice and was wondering about is how does closing a windows forms application interact with excel.exe running in the background and likely more specifically the garbage collector. I have written quite a few excel automation projects and noticed that after I run my program .exe and it has completed there is an excel.exe process that hangs on until I close the pop up window from the windows forms application. Why is that happening?
View 1 RepliesI am making use of a external dll in my vb.net program. When i run the program as a application, everything works fine. But when i use the same dll in windows service program, written in vb.net i get System.DllNotFound exception. The code to use the external dll is as follows[code]...Use external Dll in windows service?
View 2 RepliesI am trying to control an external application using visual basic. I have spy++ in order to get the windows handles of all the tool bars/buttons etc. Can someone refer me to some code/ tutorials on how i can control the application. I will need to perform mouse clicks (ex clicking file>open) and sending key strokes in that application.
View 2 RepliesI have a program that I am working on and I would like to have it embed and run an AntiVirus program , but I am not sure if this can be accomplished with the use of a button.
[Code]...
I wam trying to create a application that will take a screenshot when the timer ticks over.What I need to find out is how do i Make a type of 'crosshair' system for the window that the screenshot will be taken.ike I will have my main VB app and the end-user will drag the crosshair over lets say, Their iTunes libary and the ap will get the height, width of the iTunes and then take a screenshot JUST OF THE ITUNES program, not the whole dekstop.
View 23 RepliesIs there a way to intercept a MsgBox() from an external application and block it using VB.Net?
For this discussion, let's say the MsgBox Title is "SQL Application" and the Message is "SQL Error - Try Again".
I have found some examples of looking for the MsgBox to pop-up (by watching for the Window title) and then sending key(s) to press OK, but I was curious if the whole process could be avoided. Otherwise, the user still sees a MsgBox or a "flash", even if it's only temporary.
I am developping a Windows Service in Visual Basic, witch will start an *.exe when starting. It's working pretty fine. Now how can I stop this *.exe while stopping this windows service? My code is as below:
Public Class MyWinService
Dim RetVal
Protected Overrides Sub OnStart(ByVal args() As String)[code]......
I have an app that opens MS word. I then open Word's File open dialog and have it pointing to a specific directory to find a file for the user to open. What i cannot do is retrieve the file name the user selected to open. In a Window's fileopen dialog i can read the .fileopen property, however there doesn't seem to be a corresponding property to read in Word's dialog. Is this even possible? if so how do i do it?
View 4 RepliesI migrated an application from Vb6 to .NET and there are still a few bugs to fix.One of them is when I want to edit a record, the inputs should have been populated with the coresponding data from the database. Instead, only the drop-downs are populated, the text inputs are blank.
View 10 RepliesI can currently make a dialog1 pop up, then the user clicks "Yes" for dialog1, then dialog2 pops up, and if the user clicks "no" instead of "yes", dialog2 reappears again. I've got a headache now, but I will re-look over my code to see if there are logic errors.
I originally had dialog2 and form1 (the form1 was acting as dialog1). But The thing was that I do not how to give properties of a dialog to a form (i.e. not make the user be able to click other windows while this form is open) IF I could have code that says Me.bringtofront (which I have tried) didn't work though. If I apply this command to a form I get an error:
code: Form1.showdialog()
error: Please make form1 not visible. something a long those lines. But what I don't understand is form1 was never open.
What do the standard lines of code do?:
Me.DialogResult = System.Windows.Forms.DialogResult.OK
Me.DialogResult = System.Windows.Forms.DialogResult.Cancel
There may be times when it would be useful for your code to be able to find and close modal dialogs displayed by an application. Perhaps you do not want to have to wait indefinitely for your user's input, or are using the COM Web browser control to automatically navigate Web page and would like to interactively close alert messages that pop up.Digging into our Interop toolbox, we find that this is a relatively simple process using a few core Win32API calls. Starting with the handle of the main window associated with the dialog (this is the form from which the messagebox was shown, whether from your code or from a Web page hosted in a Web browser control on the form), the GetWindow function can be used to retrieve a handle to a dialog windows (called a popup by the Windows API) being displayed (if any). The same function can then be used to enumerate the child windows of the dialog to find a button on the dialog to click in order to close it, and the SendMessage API function can be used to simulate that click, effectlvely closing the dialog window.
NOTE: At the top of whatever code file you put this code, be sure to include the following line (thanks poiygon for pointing this out):Code:Imports System.Runtime.InteropServices this allows for the shortcuts to the DllImport attributes.[code]This sample can be easily modified to close a dialog in another application (by using the MainWindowHandle of that application in the LookForAndCloseIEPopup function, instead of "Me.Handle") or to close any other type of modal dialog message being displayed to your user.
What the icon file filter is for load/save file dialogs. (I know the jpeg one is "JPEG Files (*.jpg)|*.jpg|PNG Files (*.png)|*.png|BMP Files (*.bmp)|*.bmp|All files (*.*)|*.*" But as far as I know you can't use these as icons without an icon editor).
View 1 RepliesI am unable to select a .ZIP folder with either the FolderBrowserDialog (FBD) or the OpenFileDialog (OFD). First off the FBD does not show any .ZIP folders when using it and the OFD does show .ZIP folders but I am not sure how to handle it's path. My question would be how can I handle the OFDs ".SelectedPath"??? I could easily obtain that info with the FBD "FolderBrowserDialog1.SelectedPath", but it does not allow the selection of .ZIP folders.. So now I am trying to do the same thing with the OFD but there isn't any code for obtaining the ".SelectedPath". Here's some code that shows what I am trying to do:
Private sourcePath As String
Private destPath As String
With OpenFileDialog1
[Code].....
I'm relatively new to visual basic and programming all together but I've managed to write a pretty useful program for my division. I am trying to add some more functionality however and that's why I'm here...because I am having trouble understanding how to make a windows dialog box pop up after the system time reaches a certain time.
View 9 RepliesI am trying to get my project to be able to save the data been input from a user. I have uploaded a screen shot of the dialog I am currently trying to use. You will see that I have got a combobox for member at the top. What I want is when the "new" button gets clicked then I can add the desired information then click "Ok buttton which will then save the information.
I want to be able to select members from the combobox after multiple have been recorded to be able to delete or edit them. I have got as far as "changing" the combobox to a textbox for input purposes. I have tried a few attempts to get it. I am getting "ConfigurationErrorsException was unhandled"
In my dialog I want to prevent the user to browse freely in certain places (this is due to the fact that my application will be running in a terminal server environment). So I want to to limit the items that will be visible in the top combobox of the server. I want it to start with "My Computer" instead of the usual "Desktop". Furthermore I only want to add mapped network drives under "My Computer" so that the user won't be able to see any local resources.With Spy++ I have been looking around at what happens when a FileDialog starts.
So far I have found that for each item in the combobox CB_SETITEMDATA and CB_INSERTSTRING methods are executed. By using a hook to the combobox I am able to intercept these messages, but sofar I am unable to determine the exact contents of what is inserted, so I am unable to determine wether it is the "Desktop" item or not.I have also discovered that the "My Computer" node is only added at the moment that the combobox is expanded. So I would need a way to get a handle to "My Computer" and insert an item for it manually
This is what I have got so far:
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
If FolderBrowserDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim files() As String = IO.Directory.GetFiles(FolderBrowserDialog1.SelectedPath)
[code]....
I Have one Windows Application in which i have one MDI Form (Say App1). And I too have another Windows Application in which I have a Child Form (Say App2). So now i want to Call App2 from App1 .. And want to Display App2 form As MDIChild in App1 MDI Form . I am Able to open the Form of App2 , But how to set It As App1' Child .
View 2 RepliesHad this matter on Xp machine and visual studio 2010 ultimate after windows update between december and january: even the simplest windows form program crash on start when starting for debug (inside Ide, F5) unless putting breakpoints on each line of the autogenerated (and marked as "debugger step thorugh") code.(see: [URL]) I was wondering if this matter affects only Xp machines, or if someone with Seven or Vista had same matter.
View 2 RepliesI wanted to know if it is possible to Zip a folder without any external dll nor any external references - just with native features.I've been able to Zip files with System.IO.Packaging, but it does not include folders and I cannot tell it to Zip the parent folder.I know there are external dll and so, but I'd like to know if it's possible to make it from a native way.
View 1 RepliesHave a Windows app that needs to interact with a stand alone program that is accessed using cmd.exe. From Windows app, I can execute cmd.exe but cannot interact with it. Tried SendKeys, but this only sends one key at a time (sometimes more, but inconsistent) with multiple cmd.exe windows opening. Need to be able to send a whole command (string) to only one cmd.exe window.
View 1 Replies[URL]
I am trying to send keys to another program but i dont know how to write the code to do it and would i have to add a path to the other programs .exe?
I am trying to Interact with VB API to Pro/Engineering.I got some information that we can add Reference Pro/E dll using Add Reference -> COM then we can use it.But I have issuse that how to get current session which is already runing in my machine? how it will find object of Pro/E (like one shape already created)?
View 7 Replies