User32.dll + SendKeys - Windows 7 Vs Windows Xp
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
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Sep 5, 2009
I was wondering if there was a function in user32 that could enable a hwnd control if it is disabled (grayed out) If I know the handle then can I do this? Also, if it is a menuitem, can it be done too?
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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 :
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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")
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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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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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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)
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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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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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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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Feb 7, 2010
I am working on moving applications from Windows 2000 to new server Windows 2003 R2(64 Bit). I noticed that there are some VB programs and config files for those programs have been placed in Windows 2000 Registry. Some other applications are using them from different servers.Why do we use registry here? How can i move these to registry in windows 2003? Can I just move these or do I have to write VB programs to place them in 2003 registry?
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Nov 1, 2010
Could anyone provide me with sample code for using a WAV file as the input to the Windows speech recognition software on my machine (Windows Vista)?
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Mar 12, 2010
I have a .net Windows Service developed in VB.net. I have a settings file in the root directory called Connections.XML and I am setting the basedirectory [code]...
When I schedule the service this is working absolutely fine in my Windows XP machine. But when I installed the same service in our development server (Windows 2003 64 bit Server) for some reason it is not able to locate this file.
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Jul 4, 2011
I am having a windows application. That downloads files from server and write into the local directory. It works fine. When we try the same appliication in Windows 7. IT shows an error Access to the path denied (While writing to the local directory).
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Apr 10, 2012
How can I change the background of my form to look like that of Windows Mobility Center in Windows Vista?
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Jan 22, 2011
I have developed a VB 2010 express application that works on my windows 7 machine, but when I deploy it to other windows 7 machines the application will not run at all. I created an msi script to install the software on other machines and it includes the .NET 4.0 framework an all of my application dll's and such. Any idea what might be he problem?
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May 3, 2012
It is possible to create windows service using windows form control in vb.net. give me the url or links. The windows forms control such as, Timer control, list-box, notify-icon control etc.
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Nov 15, 2009
will an program built on windows 7 using vs 2008 or 2005 have the compatibility with windows xp or vista
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Aug 8, 2011
I have embedded the WMP control in my Visual Studio 2010 app which works on windows 7 (Framework 4.0), but installing the app on winXP, I get the following error:
System.IO.FileNotFoundException: Could not load file or assembly 'Interop.WMPLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
File name: 'Interop.WMPLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
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WRN: Assembly binding logging is turned OFF.To enable assembly bind failure logging, set the registry value [HKLMSoftwareMicrosoftFusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.To turn this feature off, remove the registry value [HKLMSoftwareMicrosoftFusion!EnableLog].
I guess this is a reference issue, but I have added references to WMP libraries (axinterop.wmplib.dll and interop.wmplib.dll). The WMP works on the XP machine, but not when called from my application.I have searched the web now for 5 days and changed references, and reinstalled the media player on the XP machine, but nothing works.
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Jul 24, 2011
I've successfully saved video files into SQL server as varbinary. Now, my problem is, how can I play those videos in Windows Media Player (embedded in my Windows Forms).
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May 15, 2012
I have seen this happen before but am not sure how I resolved it in the past. On runtime the controls of my form change from the windows 7/vista format to an older version format as shown in the attached image.
How to display the controls in the format on the left (new windows format)
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Sep 25, 2011
I am building a Setup project for a Web system using Visual Studio 2008. I upgraded my development machine from Windows Xp to Windows 7. The problem started with Windows 7. Whenever I try to build I get the above error. I ve tried several solutions given online but I ve failed to get a solution. When I transfer the system to a machine running Windows Xp or Windows 2003 Server it builds successfuly.
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Jun 19, 2012
I'm attempting to use waveOutSetVolume from coredll.dll to gradually increase the audio volume from silent (or near silent) to maximum.
Most of the code examples I'm finding show some predefined set points for Off, Low, Normal, Medium, High, and Very High like this:
Public Enum Volumes As Integer
OFF = 0
LOW = 858993459
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OK, and here's some API documentation which doesn't make a lot of sense to me in this particular context. What is low-order word and high-order word and how can they both exist in a single value?
· dwVolume New volume setting. The low-order word contains the left-channel volume setting, and the high-order word contains the right-channel setting. A value of 0xFFFF represents full volume, and a value of 0x0000 is silence. If a device does not support both left and right volume control, the low-order word of dwVolume specifies the volume level, and the high-order word is ignored.
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Mar 17, 2011
i am doing project of Order Accepting system for five star hotels.Scenario is Waiter will accept order using Window Mobile which is Connected to WiFi present in hotel.I want to communicate to database(Sql Server) present on My Machine (Computer present in kitchen) through WiFi and Add order into table present inside database. This should notify my application present on Compter and should print order. After completion of Order Application from kitchen will notify to waiter about completion. My problem is How to Communicate with database present on Remote computer using WiFi from windows Mobile.
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Nov 11, 2009
nothing
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Jan 19, 2010
I'm porting code that I wrote for use in a Windows Forms application to a Windows Service, but for some reason, the code that worked in the Windows Forms application is now throwing errors in the Service
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May 3, 2012
It is possible to create windows service using windows form control in vb.net.If yes then please give me the url or links.
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Sep 24, 2010
I am making a System Tray Application when i minimize my form its hide itself in the tray but whenever i click on the tray icon my form shows now when my form shows up i would like to disable my Background desktop same as CardSpace when its shows up.
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Aug 2, 2011
I have developed a Windows Service in VB.Net (VS2010) which is running on Windows7. I am trying to get "MainWindowTitle" for processes thru their process object but it returns empty.
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Apr 10, 2012
I have a problem with scroll in a treeview in a Windows forms application (Framework version 3.5).
The strange thing about the problem is that on Windows XP, Windows 7 and Windows 2008 the scroll works as excepted, but in Windows Server 2003 SP2 the scrolling doesn't work. Enable/disable Visual Styles doesn't seem to make a difference on Server 2003.
Steps to reproduce the error:
1. Add a treeview to a form and add x nr of root items (and 1 sub item to each item).
2. Expand a number of nodes. The non-standard thing here is that we are changing the node integral height because we display a usercontrol with the treenode (See example of the code below).
3. When you scroll afterwards, you cannot scroll to the bottom node. The scrollbar is all the way down, but we are not seeing the last node.
Public Shared Sub SetNModeHeight(ByVal Node As TreeNode, ByVal IntegralHeight As Integer)
'Create instance of tvitemex structure.
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Apr 19, 2010
i have created some shareware applications. I implemented the following mechanism for piracy protection. Before Windows Vista and Windows 7 i did write a dll file to the System32 folder with an encrypted license key. Also in the Registry under HKEY_LOCAL_MACHINE i inserted a registry key.
The problem is that with Windows Vista and Windows 7 due to the User Account Control (UAC) this is denied.
I want to ask : what other mechanism can be implemented ? Where should i store the encrypted key file and the registry key.
I want that the application can be installed for all users of a computer only once.
If i stored the key in the user's application data directory then another user could easily just install it under another user account. Also i do not want to put the key file in the application directory because that would be too obvious.
note that i create the registry key with my application and not with the installer.
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