Make Sure A Winform Is Always Active?
Apr 15, 2011
In a small vb.net application is use the shortcut's F1 and F3 to start/stop a timer countdown.In fact not the Keys itself are pressed, but i have to buzzers connected via USB who are simulating F1 + F3 when pressed.Precise the application runs on a karting track. When a driver enters the pit he/she will press the USB-Buzzer to start the countdown, pressing the 2nd buzzer when leaving the pit.Everything is going well, with one exception.After a longer period without activity the application will not react on first hit on the USB-Buzzer so they have to double press it to start the timer.
i already activate the winform with a timer in background (also center it on screen/center the mouse/making them topmost) but it seems the application falls into sleep and the first hit on the buzzer is the wakeup call for the form an the 2nd is forstarting the countdown.How to make sure that the application will start the timer on first hit.
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Mar 8, 2011
i would like to pause and show my splash screen for few moments when the program loads. How can i do it in vb.net winforms...
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Mar 4, 2011
I am doing a program that loads a PDF after a bar code scan, and it is really working but, now I need the text box where the scanned text appears, to be ready for next scan, after the PDF load on programm form, the textbox is not active and I need to highlight the text on it so next scan delete and replace the current text. How I can do it automatically?
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Aug 29, 2010
What is command to make window active? I want one of my windows to be on top of all other windows that I have opened so I can work with it
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Apr 21, 2010
I'm using Visual Basic 2010 Express.I have a form that can be minimized.There's also a tray icon.I've coded it so that if you double-click on the tray icon, the form's FormWindowState becomes set to Normal; this restores the form to where was before it became minimized, but the form does not become the active window on my desktop.
How can I make the form become the active most foreground window? I've tried various functions that I can think of but no luck yet. Tried searching with various queries to try and find the right wording but no luck.I'm new to Visual Basic - only started a couple hours ago.Probably something simple but I can't seem to find the correct function or anything.I have the form/window open, and then I overlap said form with a window of another application. When I double-click my app's tray icon, I want my window to become the active window, bringing it to the front, but can't figure out how
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Jul 8, 2009
When I have two MDI Child forms opened, it is difficult to visually see the active form versus the non-active form.I would like to have the Active Form stand out more, say a yellow border.
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Mar 17, 2009
How do I make a certain tab inside TabControl to be active at form event?
For example, I want TabControl2 to be shown at form load.
TabControl2.focus isn't working.
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Sep 18, 2011
I 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)?
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May 30, 2010
I need to make a program for school that closes the active window. My application does now SendKeys.Send("%{F4}"). It works but, it also does it when there are no active windows. I want it to close only the active windows.
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Nov 26, 2011
I want to be able to make an internet window (its a java game in a popup) that are "active" or even "inactive" all time.In example: I'm opening a MSN chat window, in the game a symbole next to my name changes to "ZZ", what i want to do is to make this "ZZ" won't appear
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Nov 27, 2009
how to specifically identify all the specific table cells that are selected in a webbrowser control. To be specific once I load a page into the webbrowser control and it is displayed I simply want to be able to click and drag with the mouse over multiple cells. Once I have selected the multiple cells I want to be able to do something to them such as adding an attribute. I can do this with a single cell. With the follwoing code:
Private
Sub
WebBrowser1_DocumentCompleted(ByVal
[Code]......
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Jul 14, 2010
I'm trying to make the textbox field active when listbox selecteditems is change so I know I have to but something in the selecteditemchanged action of the listbox, but what?I tried:
Private Sub ListBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
TextBox1.Enabled = True
End Sub
But it didn't work..
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Mar 30, 2009
I 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.
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Jul 7, 2010
A Form is to Accept User Name and Password from user, after verification the form should display another form that will accept user's full data. When a user press the Ok button, the information entered on this form should be display in another form (Showing the user what he/she has entered)
i have Design the Firs Form and the second form, how can i pass the information entered on the second form to third, and also what will the code look like I need help on this or Code Sample?
NB: i am trying create an instance of the second form in the third form and declare a variable in the third form that will holed the value, but still not working I want to learn .NET Programming in VC#, ASP.NET And VB.NET. I am student and really get excited when it comes to programming
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May 9, 2006
I'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.
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Apr 2, 2010
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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Feb 4, 2010
is it possible to use the same database for winform application (with vb.net) and web based with asp.net?
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Feb 1, 2011
I have a winforms app with multiple GUI threads. I want them to be able to access each other's thread objects without having to keep track of that information separately.Is there a function in .NET that I can feed a winforms control or window object, and get back the thread? Or a function in the API I can pinvoke for the threadID?
Edit For those of you who for some reason believed my italicized text, congratualations, you're hired!! Here is the problem: "App is crashing in the wild by locking up totally, that is, it stop responding. Very intermittent, and trying to debug it, it seems to never happen."
So what do do? Install an option in the program that the user can activate under our direction, whereby from another GUI thread in the same app, do a thread.abort on the main GUI thread, then we can look at the call stack in the error log. Viola, found an impossible to debug error in less than a day. (Stop now, it had nothing to do with abusing multithreading:-)
I'll admit I almost didn't ask this, the reason I did was I could see an object reference to the main form, but there wasn't any for its thread. I'm giving Chris Shain the answer a/c it is a quick way, unfortunately when the thread is hanging, I wouldn't be able to do an invoke (it would hang too). A little more digging revealed the GetWindowThreadProcessId API call. But it's an unmanaged thread ID, apparently there are complications turning that into a managed thread ID.
So I bit the bullet and put in a global reference to the main UI thread. Would have posted it to begin with, but hadn't written it yet.In main public module/static class:
Public GUIThread As Threading.Thread
Sub Main()
[code]....
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Aug 24, 2009
I am trying to put a pdf file on my form using microsoft report viewer, but i cannot find it. where is it?
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Sep 4, 2011
ok so i dynamically create a wsf for running an automated telnet session that works great!!(finally!!) but auto executing the script from my code is proving difficult for whatever reason.
I have tried:
Shell("C:shutoffscript.wsf") this produces this result.
also tried setting a bat file that launches the script and launching it as well using shell every time I launch it I get an error in the script that works just fine executed outside my code.
using outfile As New StreamWriter("c:" & "shutoffscript.wsf")
outfile.Write(sb.ToString())
End Using
MsgBox("Script built press ok to execute")
Shell("C:shutoffscript.wsf")
I think this has to be some sort of permissions error right? Since both errors tend to not be able to find the file. Just not sure how to fix it.
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Jan 20, 2012
Public Class ConsoleHelper
<Runtime.InteropServices.DllImport("kernel32.dll")> _
Public Shared Function AllocConsole() As Boolean
End Function
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Sep 22, 2011
COM Reference 'AcroPDFLib' is the interop assembly for ActiveX control 'AxAcroPDFLib' but was marked to be linked by the compiler with the /link flag. This COM reference will be treated as a reference and will not be linked.Winform - Get It To Run On other Computer?
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Dec 1, 2010
Done quite a bit of looking but not finding what i need. From a win form i'd like to open up a web browser passing in a url. But i need to provide authentication while doing this. I tried just using a system.diagnostics.process.start("http://userid:pw@site") but that does not work. Was hoping someone could lend a hand.
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so is there anything else that can be done to get IE to work.. cause i'm thinking that would allow the above code to work as well.
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Dec 9, 2010
There is alot of "search-hits" for the BASS.net Lib, but there seems to be non documentation for how to do this on the [URL] page. My problem is: I want to be able to play a .XM file in my Winform. I'm using VS 2008, .NET 2.0 on a 64-bit computer. Does anyone have any experience with this?
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Oct 25, 2011
How to set winform start position at top right? I mean when user click (start) my winform application the winform will appear at the top right of the screen?
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Jan 11, 2011
VB.Net / Winform.Is there a component that will look like a Button but when pressed will open like DropDown, but the DropDown wil contains a list of Buttons? Menu bar won't work for me in this case.
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Dec 7, 2010
I am using vb.net / Winform 2010.I am looking for a free (or very cheap) alternative to the DataGridView, one that looks more like what I see on ads for XTraGrid. Something that will multiple lines per records, and for lines to be rolled up, and expanded by clicking, etc.
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Apr 19, 2011
I've been profiling a WinForm's application using ".NET Memory Profiler".I can't quite seem to understand how my application is growing to 1GB, then 2GB, then 3GB of usage - according to windows task manager.
The private bytes using that tool, and "Total Bytes in All Heaps" shows only as 70MB or so. At the top of my list of instances hanging around, they are mostly String, or WeakReferences to lots of little objects.
All the application is doing is showing a form that loads data from a database. I repeat the show/dispose cycle of the form about 100 times and the growth is continuous.I've tried about 3 memory profiling tools now and none of them are showing me where this enormous amount of memory consumption is coming from.
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Aug 6, 2009
I'd like to place a button on a WinForm that will allow the user to access an external website via IE.
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Aug 5, 2009
I am in the process of converting an in-house web app to a winform app for disconnected reasons and I hit the following snag.
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