How I can run handler from one application to another, for example:
In application one I have form1 and button.
In application two I have also form1 and button.
Now how I can run handler for button on form1 in first application from application two?
I have a standard Visual Studio 2008 VB.Net WinForm application, running on Vista Business. One of the forms has a timer that passes Me.Handle to FlashWindowEx. This works as intended as long as none of the windows that belong to this application are the Foreground window. If this program is running and another application's window is the Foreground window, then it flashes as intended. If, however, any of this application's windows are the Foreground window, then it doesn't flash.
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I am in need of a small application, that will allways be topmost and will send keystrokes to the last active application (typically notepad or an explorer window). My problem is retrieving the current active form (or application), when my application is started up. Every search seems to return old and rather complex solutions using Win32 library functions, but I was kinda hoping, that .Net allowed for a neater and more simple solution.I need a code example or link on how to retrieve the currently active application window from another application just starting up.
View 2 RepliesHow I can run handler from one application to another, for example: In application one i have form1 and button. In application two I have also form1 and button. Now how I can run handler for button on form1 in first application from applicaton two?
View 2 RepliesI want to define a global exception handler for unhandled exceptions in my console application. In asp.net, one can define one in global.asax, and in windows applications /services, one can define as below
AppDomain currentDomain = AppDomain.CurrentDomain;
currentDomain.UnhandledException += new UnhandledExceptionEventHandler(MyExceptionHandler);
But how can I define a global exception handler for a console application ?currentDomain seems not to work (.NET 2.0) ?
How to add application level error handler in vb.net win forms
View 1 RepliesI have some code for starting a process (notepad), and dynamically makes a event handler for the Exited event.
Private WithEvents notepad As New Process
notepad.StartInfo.FileName = "notepad.exe"
notepad.StartInfo.Arguments = fil
[Code]....
But when I try to change the text of a label in the Event handler the application just closes, without any error messages at all.
Sub ExitNotepad(ByVal sender As System.Object, ByVal e As System.EventArgs)
lblLabel.Text = "Test"
End Sub
I am having an Activex Application (dll) which contains a third party control ie a Chart Control, as well as a Windows Application(.EXE). I am using that dll project in my exe application in order to populate the Activex user Control. If i double-click on the Activex Control, how can i pass an event handler from this dll Project to Windows application? If this event gets worked successfully, i have to load a screen from that windows application.
When the user clicks on the Activex Control, ie the Chart Control, is there any way to send a event handler from dll project to Windows Application?
Is it possible to write a Gloable or application wide error handler, how?
DanielI'm new to .Net, OPP and this forum but love it!
I have a Windows Form application that has a global error handler to display unexpected errors.
Namespace My
Class MyApplication
Delegate Sub ProcessParametersDelegate(ByVal sender As Object, ByVal args() As String)
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1) for the same deployed code, I SOMETIMES get line number in the displayed StackTrace error message and sometimes do not, even when the error message includes source code that I have written rather than a referenced binary. The project is compiled with a DEBUG configuration.
2) The application strangely minimizes to the tray when the error occurs (I thin it is unlikely that anyone can diagnose this issue w/o my more code posted, but I'll mention it anyways)
3) When I try to intentionally raise an error by, for example, dividing by zero hoping to test by global error handler, I get a dialog error message from the interactive debugger rather than jumping into my global error handler (which i want to debug because there is more to it than I posted.) Do you have any idea how to triggerand force teh execution of the global event handler?
I have a mdi application. When some childforms are open (but only one is active) and the user press a button, I want to know, what form is open, because depending on this, an event will fire up. I imagine this so: at first I determine the active form with a separate function. And then with a select case statement the event will be fired up. How can I make this?
View 2 RepliesHow do I minimize all active forms in my application with a single button click?I have multiple forms visible at a time, and I want all my active forms to minimize when I click on a single button on one of the forms.
View 2 RepliesI am developing a Windows Forms application. I have four forms which is inherited from Baseform in another project. In all four forms I am using a label to show some transaction count based on network status. I have implemented a thread which gets the active form of application and setting up the text. The code works fine if application screen is active. If I minimize and open any other application, I am getting an null error exception.
How do I get the active form of an application?
Private Sub StartThread()
pollThread =New Thread(AddressOf PollfileStatus)
pollThread.IsBackground =True
running =True
pollThread.Start()
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I want to know if the Windows Run key pressed. How can it be possible? What's the constant or ascii code for this key? The second: How can I know if the program, I wanted to use, is activated? What's the correct func. for this?
View 2 RepliesI have created a program which should perform a certain action whenever a certain group of keys is pressed at the same time. The program must be able to run in the background, or in the system tray or something. Essentially, this should work like the KeyDown event on a form, except the form in this case is everything.
I'm not certain if there is a way to do this directly from within the .net API, but if there is I certainly have not found it.
I'm looking for a simple sendinput example, f. e. how can I send 'a' and capslock to the active application?
View 1 RepliesI've tried everything to set my window as active after I've been working on another external App... I have my system on auto and need to send some keystrokes to the program using sendkeys, so I need that app active. I've tried almost everything I can think of, bringtofront, setfocus, windowstate, setactivewindow, setforegroundwindow (For the last 2, hwnd doesnt work - I'm using VB 2008 Express) but none of them seem to be working.
View 4 RepliesI'm having troubles with terminating an application. When I close the main form everything disappears but the process remains active. I think I know the cause, a certain activeX component will not release properly. As soon as I create one, I can't close normally...
dim someActiveXcomponent = new X()
...
<formClosing>
someActiveXcomponent = nothing
GC.Collect()
GC.WaitForPendingFinalizers ' here it hangs
Probably a bug in that component, but the problem is that I don't have much of a choice, I'll have to use that component for now.
Calling
System.Runtime.InteropServices.Marshal.ReleaseComO bject( myObject )
will kill the reference and now the application closes properly.
I have created an application which has a parent form and various child forms, when all child forms are closed and only the parent form is viewable would it be possible to exit the application?[code]...
View 3 Replieshow to get all the active mdi child in an application..it is possible to work? me.ActiveMdiChild.Name
View 1 RepliesI want to build a logger that shows how much time I use on difffifernet applications on my pc.
How can I get info about what what application is has the focus.
I'm new to .Net, OOP and this forum but love it!
I amtrying to send ALT + 1 Key to the active application but the problem i am having is when i use SendKeys.SendWait("%1") the program ignores the alt key and jsut enters the 1. is there a way i can get this done?
View 11 RepliesI want to make an application that allows the manager of the company whether the employees are truly active: screenshot and a "timer" to measure the time of the activity of the employee Can be controlled using the mouse or keyboard while the application is not active, but in execution.Is it possible in vb.net to know if the user of the machine is using the mouse or keyboard? My idea is to set a "Timer" which triggers automatically after the connection of the employee and every 10 seconds the application checks whether the mouse position has changed or a letter is entered on the keyboard except the"Timer" Will Be stopped until have a new mouse position or activity on the keyboard. But the problem is: is the application able to know the position of the mouse or to capture all keyboard input even if the application n 'is not active(not in the foreground)?
View 2 RepliesI am new to VB; am developing my first VB program; and require some help in getting started. I wish to query information from an Active Directory server using a Visual Basic 2008 console application. I have .NET Framwork 3.5 installed and VB 2008 Express installed. Do I need to install anything else (any additional libraries or components)? Is VB 2008 Express capable of accessing information from Active Directory? Where can I find information about the classes and methods I should use query information from Active Directory?
View 6 RepliesI want to get the active control (control which has the focus or where the cursor is on) each time the cursor moves to another control or each time a control receives a focus.
View 5 RepliesI'm trying to complete this airline reservation application, but having a problem in this part of the question:Creat an event handler for the FlightBindingSource's PositionChanged event: select FlightBindingSource in the class Name combobox then select position changed in method name combobox to creat the FlightBindingSource's PositionChanged event handler. Write a code to access the currently displayed flight object and pass its flightNumber to method DisplayPassengers as a decimal.This Is my code so far:
HTML
Public Class AirlineReservationForm
Private database As New ReservationsDataClassesDataContext()
Private Sub FillAll()[code].....
It seems like whenever i click my close button the application will close but the debugger is still in active.How to exit this debugger? :)
View 2 RepliesHow do I get a Event Handler to fire from within a nother Event Handler?
View 6 RepliesI'm a developer for a College we have an active directory.I need to query Active Directory with the Pc name and return it's path in the Active Directory tree.
View 3 RepliesThe event handlers in my parent class are never called though the events are raised in the child class.
The Code:
Public Class childForm
Public Event checkboxchangedEvent(ByVal checkbox1 As Boolean, ByVal checkbox2 As Boolean)
Private Sub checkboxchanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged, CheckBox2.CheckedChanged
[code]....