VS 2008 : SendKeys To A Specific Windows Handle?
Sep 17, 2009
Is it possible to send keys to a specific windows handle without having to bring that window to focus?Right now I have the following code almost doing the trick:
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare Function SetForegroundWindow Lib "user32" Alias "SetForegroundWindow" (ByVal hwnd As Long) As Integer
Sub SendKeysToApplication(ByVal AppTitle As String, ByVal Keys As String)
[code]....
It will bring the windows calculator window to the top and set the value "1" on it.Is it possible to send the keystroke without poping the window?
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Oct 5, 2009
How can I find the mixer handle for a specific sound card?I'm trying to build an application that will control the sound mixer of a specific sound card but I'm completely stuck in the getting the handle part.
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Dec 22, 2011
In Visual Basic 2008 Express Edition, how would I send keystrokes to a specific window. Right now, I just keep the window I want on top and use sendkeys.send("{enter}"). The window that I want to send keystrokes to is my applications
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Jun 20, 2012
I have a small application I have developed to just put in some text into another applications input box, and it works perfectly!..... On windows 7. When I try to run the application the exact same way on windows xp the entire computer freezes for a little bit of time, then after it continues to run my application it doesn't insert any text to the applications textbox. I am not sure entierly what could cause this. Both are 32-bit and are running the same version of visual studio. Here is the code that I use. modApi.vb
[Code]...
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May 12, 2010
I need to know how can I simulate pressing (Windows Logo Key + R) to run "Run" program ?And how to simulate pressing Application key as in this thread :
[url]
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Sep 10, 2010
I have an application that I want to load using the scheduler in windows. I am also wanting the "enter" key pressed when the app loads. Because you cannot use a batch file I tried using a vb app. It works great on two different windows 7 machines but not at all on the xp machines. The xp machines load the app but don't follow through with the sendkey.
Sidenote - I had to repeat the sendkey function in order to get this to work because I am not sure how to use the sendkeys.sendwait function. I tried and it never worked.
Dim ProcID As Integer
ProcID = Shell("C:Program FilesAdobeFlash Media Live Encoder 3.1FlashMediaLiveEncoder.exe")
[Code].....
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Sep 1, 2010
On Windows 7 (UAC set to off), the Sendkeys.Send() runs as fast as windows XP when putting strings into Notepad (for example).
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Mar 7, 2010
I'm using the namespace System.Diagnostics. I need to check if there is a Windows process called "gospeakx.exe". If exist the "gospeakx.exe" process, end it. Does anyone know how I can do this?
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Sep 15, 2010
In the process of testing of old (XP compatible) applications with Windows 7 we have xperienced a problem, that our major application Clarify (based on VB engine) does not work properly with turned on UAC (SendKeys and DoEvents do not work). Having turned off UAC, works our application error-free. Due to the corporate policy we cannot turn off UAC but we are looking for a solution, how to turn off UAC (not prompts) only for our application or how to het to work an application based on VB with turned.
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Jan 30, 2011
I want to make a screenshot of a specific window of which I know the handle. I know there is a BitBlt function but I can't get that to work with the handle, I prefer it to work even if the window is not active but I'm not sure if this is possible at all.
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Nov 18, 2011
I have tried to control another application to automate a process we do 100 times a day. It is simple enough, a few key strokes is all but I have been foiled in all attempts
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Jul 28, 2009
What is the difference between SendKeys.SendWait and SendKeys.Send?Send obviously will just send they key immediately, but does SendWait actually wait for the message to be processed or does it also send it immediately?The function's name itself is just confusing. Which one should I use if I want to send keystrokes to a 3rd party app immediately, or is there no difference? To me, a few milliseconds is a big difference.
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Jul 2, 2010
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
CheckBox1.Checked = True
While CheckBox1.Checked = True
SendKeys("{END}")
End While
End Sub
That is the code, the error is "SendKeys is a type and cannot be used as an expression."
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Mar 13, 2010
I need to use system.windows.sendkeys.send or whatever to send the Windows and D key. How would i do so?
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Dec 1, 2009
I'm looking for the underlying Win32 API call that the DotNET Framework invokes on a SendKeys.Send or .SendWait call, or a Win32 API Equivalent to SendKeys. I've already experimented with SetKeyboardState which seems like the way to go, except that it does not raise any kind of keyboard event that causes the set keystates to register with an active application or the OS (at least not until another key is pressed; for example I can meddle with the keyboardstate before events process on a natural keystroke, but I can't invoke a keystroke programmatically).
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Nov 30, 2010
i'm making a little app in which i need to enumerate all the windows of a specific process. i managed to do that but through enumerating all the windows in the system and then just test if it is the process i'm talking about or not by using
[Code]....
but this method seem to take a lot of unnecessary time. is there a wind32 function that can allow me to enumerate the windows of a specific process giving its handle.
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Dec 2, 2010
I am trying to write a program which needs to interact with other programs.For this i need to find the handle of its window and have the user select the right windows. I am thinking of enumerating all windows and put the in a dropdown box. I was able to do this with visual basic but the code does not work wiht vb express. I need some pointer to find the solution.
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Dec 27, 2008
I have work on vb.net 2005, and want to create a small application for handle windows explorer by my application. In this application my needs are.Open Windows explorer on user define Root folder. For example Root Folder is D:ABC and in this root folder some sub folder are present (Number of folder depend on users). For example in under d:ABC three more subfolder are present 1.NSHARMA 2.APOORE 3.SKHANNA, name of folder is user login name in application.
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Jun 11, 2009
I have work on vb.net 2005, and want to create a small application for handle windows explorer by my application. In this application my needs are.Open Windows explorer on user define Root folder. For example Root Folder is D:ABC and in this root folder some sub folder are present (Number of folder depend on users).
For example in under d:ABC three more subfolder are present 1.NSHARMA 2.APOORE 3.SKHANNA, name of folder is user login name in application.I need when NSHARMA login in application then in D:ABC folder only show NSHARMA folder and other folder will hide, D:ABC folder are present on Common Path.In this Application one more common Subfolder under D:ABC it's Name is SharedFolder, it will Share between all user , it can access by at same time all login users and only how will be see it how is permission for it. For Example NSHARMA and APPORE have permission for this then only they will see this subfolder. Then APOORE and SKHANNA will be login in application that time APOORE will see it and SKHANNA does not see it.
[Code]...
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Jul 7, 2009
Ex: Alt button + i button.
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Dec 28, 2009
How would I use sendkeys to sendkeys to another app?
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Aug 23, 2009
In vb.net and made a proj. in vb2005. but when i try to load a particular form(opens up in a mdi container like all others in the project) , an error-error creating windows handle pops up, the line is frmadmn(the form).show
What shall i do? i read a lil on the net about too many handles, user objects etc. but the stats of my proj. at the time of error are-handles-350,threads-17,user objects-235 gdi objects - 159. have these anything to do with the prob.. then what should i do..? i read about the dispose command also about how to use it ? what to dispose...?
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Aug 27, 2010
I get this error as below when I open my "frmAddPrivate" more than 5 times. How I can overcome it?
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Sep 21, 2011
I have created a Windows Service in VB.NET (VS2010) that executes a certain task every minute. When the service is being stopped, either manually by the user, or when the system is rebooted, what can I do to make sure the task is being finished properly before the service is actually terminated?
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Nov 6, 2009
My application uses an MDI form, and there are instances where the end user will need multiple child windows open at a time. I need an easy way for the user to switch between windows, which made me think of using tabs kinda like Firefox, or like the tabs in the Visual Studio IDE up at the top where you can switch between open forms and code files.
I'm curious if there is a control in .NET that will already do this? I would rather not re-invent the wheel if I can help it. Google has failed me thus far.
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Apr 9, 2009
The app Im working on is dunning on an embedded xp machine. It recieves input from the serial port from an industrial process, and then a backgroundworker class calculates and updates the single form GUI with the results from the process. Very simple.Now, the customer want to allow automatic download of log files by an USB memory. The process should work like this:
1)User plug in an usb memory
2)SHow a virtual keypad (touch screen) where the user enter a security code
3)If code ok, show a 3 choice screen, if not ok show error message and allow the user to try again.
4) If user choose the "export all" button, this choose form will close and i display another form with a progress bar that show how all files are copied to the usb memory. When this process is complete, I will display teh form that says "remove the usb memory and press ok to restart the application.
As you see here lots of forms are created and disposed based on user choices. My biggest issue here is that I have no clear design pattern to work from.For example.. should I have this "chain" in the main gui form, or should I let each form create the next form. For example on the "select action" form, when I press export, should this form create and show the "copy progress" form, or should all forms be created and destroyed from the main gui form?
Also, such an issue like with the password. I put it as a constant on the main form, to avoid "magic numbers" in the code. And then I ran into problem because the "keypad" form is created on another thread and I can't access the costant on the main form, so I got a cross thread exception.Everything starts when an USB memory is connected. And the OnConnected eventhandler is running on a different thread than the main UI thread. how to design this chain of window creation/deletion is greatly appreciated. I show all forms with the SHowDialog because I dont want the user to be able to close the form unless he/she presses a button. And not by accident press somewhere else.
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Nov 10, 2009
hey been looking around for an example of Sendmessege to send keys, but all you find is the basic notepad example, can anyone please show me the way to use Sendmessege to sendkeystrokes to any application (i have the hwnd)
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Jun 24, 2009
anyone knows how to sendkeys CTRL+U
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Dec 13, 2011
I have this to show you before i begin:
Dim User As String() = TextBox1.Text.Split("")
Dim Pass As String() = TextBox2.Text.Split("")
Dim CharC As String
[code]....
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Jul 7, 2010
I am trying to create a Macro for another program.I want to periodically send keys to the program, the keys are F1-F4.The program I am sending it to has different names from time to time.
I have a few ideas on how to do it but it's not working when I put it to code.I tried to make the program sleep and have a loop to send the f1-f4 keys and click on the program I want the macro in. However that does not work.
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