VS 2005 Difference Between MainWindowHandle And FindWindow?
Dec 29, 2009I supposed they should return the same values but oddly when I tried it I am getting different results?
View 4 RepliesI supposed they should return the same values but oddly when I tried it I am getting different results?
View 4 Repliesuse API return a handle by FindWindow
Public Class Form1
Private Shared Function FindWindow( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As IntPtr
End Function
'....
End Class
My question, what value should be passed into Function FindWindow(lpClassName, vbnullstring)? Can I use "Form1"?
I have an issue using Process.MainWindowTitle,Process.MainWindowHandle on some older VB6 applications. After Process.Start I use Process.MainWindowTitle to display in a listbox. The MainWindowTitle returned is not the Window Title but in fact the Project name of the VB6 exe.? I also store the MainWindowHandle to use the ShowWindow and SetForeGroundWindow API's. It would appear that the ShowWindow API does not work, but the SetForegroundWindow does. ie: if the VB6 app is minimized, showwindow does not restore, if it is NOT minimized setforewgroundwindow sets it to the foreground. The exact same code does work correctly for any other .net exe or notepad, only on these vb6 programs I am having a problem.
View 9 Repliesi wan to create a application that can start a process when page load, and a button to hide and show the process.
Dim a As Integer
a = Process.Start("notepad.exe").Handle.ToInt32
ShowWindow(a, SW_HIDE)
i only can start the process, but cannot hide it.any miss take in my code??
i wrote a software which would work perfectly fine on vb.net with connection string: [code] but if i try and run it on a pc with sql server 2005 installed it fails to run what changes do i need to do to make it run
View 5 RepliesI am writing an application to gather, display and export system information for use with a Support Dept.Is there a performance difference between using WMI and My.Computer.X.X in VS 2005? Is one method better practice than the other?There are more lines with WMI, but am willing to write more if it's considered good practice over using My.Computer.X.X.
View 2 Repliesi have my final project viva, i developed my project in Visual Studio 2005 (vb.net) at front end and SQL Server 2005 Standard Edition at back end.so pleaseeeee tell me some most distinguish features of vb.net which i could tell the examine that why did i use this.and also tell me that what are most distinguish differnences between vb6 and vb.net..
View 3 Repliesi developed my project in Visual Studio 2005 (vb.net) at front end and SQL Server 2005 Standard Edition at back end. tell me some most distinguish features of vb.net which i could tell the examine that why did i use this.and also tell me that what are most distinguish differnences between vb6 and vb.net.give me such valuable information which makes my arguments more authentic.....
View 6 RepliesI've been using VS 2005 for quite some time and will be jumping to VS 2010 shortly. Are there any gotchas to be concerned about in making that transition? Is this a side by side install?
View 6 RepliesWhat is the difference, and why don't any of these methods work?
[code]...
From what I've read in the documentation, both of these methods roll the state of the datarow back to where it was the last time AcceptChanges was called. So what is the difference between them? Am I wrong about that?
View 4 Replieswhat is the difference between key press event and key down event in vb.net
View 17 Repliesi am a newbie in socket programming and remoting.May i know where lies the difference between the socket programming and remoting? Where do i start off to learn the basics of the socket programming?I haad a goo with the google search but unfortunately the search outcome results are a bit tough for me to understand
View 4 Replieswhat's the difference between Environment.NewLine & vbcrlf any other line breakers which i dont know.
View 2 RepliesThe particular control I'm trying to figure out is a UserControl. When I design it as a separate DLL, add it to the Toolbox, then drag it onto the form, it shows up. But when I declare the instance in Form_Load & add it to the Forms Controls, it doesn't show up. (Note that I'm dealing with two different UserControls here as what I don't really want to do is create it as a DLL. It's specific to this project & that's where I want it-in this project. I suppose I could create it as a separate project in this solution, but again-that's not what I want to do. I can add a UserControl to this project, but I can't seem to *use* it. Frustrating.)
Dim X As New Class3
X.Size = New System.Drawing.Size(96, 74)
X.Location = New System.Drawing.Point(5, 5)
Me.Controls.Add(X)
Me.Refresh()
Class3 inherits System.Windows.forms.UserControl, and contains a label.OK, found that I can make the UserControl appear by setting the BackColor (X.BackColor=). Doesn't seem like I should need to do that as it's set in Class3, but apparently when I add it to the form it picks up the form's backcolor-which might be the way UserControls work.
But, it still doesn't show the label that's on the UserControl-just a block of color where I placed the UserControl.And now, I might have solved this problem only to raise another. I finally noticed that although Class3 had an InitializeComponent sub it lacked a Sub New-so it never called the InitializeComponent sub.
I added a Sub New that does nothing except call InitializeComponent & now I'm getting the whole thing. I guess now the question is why the Sub New is required for Class3 but not for the DLL? (Or maybe it was created automatically for the DLL but not for Class3? I'll check the hidden code in the DLL project to see if it was created or not.)
If you have a form with two datagridviews that were dragged on to the form from a datasource that have a parent/child relationship with foreign key constraints. Is there any difference between using the binding navigator Delete button or adding a button to the form and in the Click event put "somebindingsource. RemoveCurrent". Basically what I'm trying to find out is if clicking the navigator Delete button causes "Removecurrent" or does it do something else or something additional.
View 2 RepliesIs there any difference between VB 2005 (from Visual Studio 2005) and VB.Net 2.0, either for using ASP.NET or Windows-based apps as a front end for SQL Server databases? I'm upgrading from VB6 to Visual Studio 2005. My research seems to show that VB.Net 2.0 is integrated into Visual Studio 2005, and the VB-specific books seem to only refer to VB in terms of 2005, 2008, etc.; I'm just trying to find out if they are the same or what the differences are.
View 5 RepliesI have a simple GUI form to hide / show / minimize / terminate / force terminate Processes. i can do all well but for show and hide i need the MainWindowHandle to show or hide it
So here is hide process code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,0)
If i try the same with show code:
Dim Proc As New Process = Process.GetProcessesById(List.SelectedRows(0).Cells(1))
Dim hwnd = Proc.MainWindowHandle
ShowWindow(hwnd,9)
The MainWindowHandle become 0 cuz its hidden is there is any other way to get the MainWindowHandle of Process ?
I've been using the FindWindow API for some time now, and it seems as if the function opts for an Windows Explorer window before any other window with the same window title.
For example, if you have a folder named Calulator open, along with the Calculator application built into Windows, FindWindow will return the handle to the folder every time.
I just thought this was an interesting occurrence, and I was wondering whether anyone knew if this is the case every time (an Explorer window over any other window) when using the FindWindow API.
I've been trying to use the FindWindowA api and also the FindWindowEx api in a little VB.NET 3.5 app and it doesn't appear to work. I get a positive long value returned whether I have an open window with the correct title or not. Anyone else noticed this?
View 1 RepliesAm trying to detect if a window is running, the result always returns a rather large number instead of 0 and I'm not sure why. All documentation I've read states this is right.
Private Declare Function FindWindow Lib "user32.dll" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Dim ClassName As String = vbNullString
Dim WindowName As String = "some fake window"
[code]....
but is there a way to search for a single process without using a For statement?
I just can't seem to get this right, what I'm trying to do is use FindWindow to find the windows of more than one window. Here is the code:
app_hwnd = FindWindow(vbNullString, CheckedListBox.CheckedItems)The thing is, if I use .SelectedItem, it only finds one window and if i use CheckedItems/SelectedItems it gives me an error: "Value of type 'System.Windows.Forms.ListBox.SelectedObjectCollection' cannot be converted to 'String'."
So right now, I'm confined to using FindWindow for only one window--when I want to do it for more than one window.
Im trying to make findwindow but it dosent work for me why ?
If FindWindow("NOTEPAD") Then
MsgBox("The window does not exist.")
Else
[code].....
Does anybody know what is the equivalent of findwindow or findwindex in vb.net. Here is what I am trying to do. I am reading a Real Time Adherence window that is dynamic(assumption) and is constantly refreshing. I have tried Findwindow and Findwindowex although I am able to get to the MDIclient and then to the window there is no "edit" field for me to read off. I have tried Spy++ and it also sees it but it does not have an available control for me to read the information.
View 5 RepliesI am developing an application that reads an MDI applications child window and grabs the information from a control such as a textbox or listbox. I have tried to use Findwindow in order to accomplish this. I have gotten all the way to the control, but once I get there it returns blank. Can anyone point me in the right direction to accomplish this.I am able to read the window title and get the control title but when I send a message to the window it returns 0. Now I am just experimenting so I have no concrete code, but here is a snippet.
Some of the code I have gotten online.
[code]...
I need to send two keys (" " and {Enter}) to a security warning in an Acrobat Window from a VB.NET application. Here is the function I use :
Private Sub SendAcroKey()
Dim HWND As IntPtr
HWND = FindWindow("Adobe Acrobat", vbNullString)
[Code]....
But I can't get FindWindow() to work properly, it always returns "0". I guess I'm not giving the good parameters, lpClassName and lpWindowName, but I dont now how to get the right ones. So here is the question : How can I know the lpClassName and lpWindowName of a security warning in Adobe Acrobat 7 professional ???
I really have to work this out but theres not much information on the web about those function, even on MSDN.
i searched all over this forum , and everywhere its the same, [code]i keep getting "found" even when the calculator is off!
View 6 RepliesIf i use this, it will give me the handle of the window "Test Window 1.0"
[Code]....
but what if the caption of the window changes? how do you find it? If it change to "Test Window 2.0" ? Program like Explorer caption always changes.
i am trying to figure out how to go about finding this window's label when the control name is the same as all the other labels on the program.
WindowsForms10.STATIC.app.0.378734a
WindowsForms10.STATIC.app.0.378734a
WindowsForms10.STATIC.app.0.378734a
[code].....
How would I use FindWindow to get the handle to a textbox on my form?
View 5 Replies