Programming Forums > Application Development > Visual Basic .NET

bigguy · Mar 16th, 2007, 9:00 PM

Hey yall. In my newer version of download blocker, I decided to add a Personal Block Settings option, for users to add their own custom programs to block. What I have is this, I have all the open windows in a listview box. Then I would like to it to where when I select the items in the listviewbox, it will tell their classname and iwndow title in textboxes. here is the code I am using

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Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y)

        GetClassName(whPoint, clsName, Len(clsName))
        GetWindowText(whPoint, wText, Len(wText))

        txtclass.Text = clsName 'GetClassName(whPoint, clsName, 0)
        txtapptext.Text = wText
    End Sub

The

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Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y)

is what gets the windowclass name and window title, but with that. I have to move my mouse over the window I want blocked. I want it to be able where I just select the item out of the listbox and it get all the info, and display it in my txtboxes. But I have tried

(Toggle Plain Text)

Dim whPoint = Listview1.selecteditems

, and a couple more, but I always get a InvalidCastException at:

(Toggle Plain Text)

GetClassName(whPoint, clsName, Len(clsName))

So please help

melbolt · Mar 26th, 2007, 8:57 AM

I have an idea for you, here is what I would do.

Since your listview contains a collection of all open windows already, why not also have your listview store each window's handle in the item tag like so.

 vbnet Syntax (Toggle Plain Text) 
ListView1.Items(i).Tag = 'code to get the handle here, i is the index
ListView1.Items(i).Tag = 'code to get the handle here, i is the index

now, when a user clicks on the listview item, retrieve that item's tag(the corresponding window handle), and then put the value in whPoint.

I believe this is what you wanted to know but maybe that is not where you were having the trouble? let me know.

good luck

Mar 16th, 2007, 9:00 PM	#1
bigguy Professional Programmer Join Date: Sep 2005 Location: Arkansas Posts: 298 Rep Power: 0	Little help with ListView Boxes Hey yall. In my newer version of download blocker, I decided to add a Personal Block Settings option, for users to add their own custom programs to block. What I have is this, I have all the open windows in a listview box. Then I would like to it to where when I select the items in the listviewbox, it will tell their classname and iwndow title in textboxes. here is the code I am using (Toggle Plain Text) Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y) GetClassName(whPoint, clsName, Len(clsName)) GetWindowText(whPoint, wText, Len(wText)) txtclass.Text = clsName 'GetClassName(whPoint, clsName, 0) txtapptext.Text = wText End Sub Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y) GetClassName(whPoint, clsName, Len(clsName)) GetWindowText(whPoint, wText, Len(wText)) txtclass.Text = clsName 'GetClassName(whPoint, clsName, 0) txtapptext.Text = wText End Sub The (Toggle Plain Text) Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y) Dim whPoint = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y) is what gets the windowclass name and window title, but with that. I have to move my mouse over the window I want blocked. I want it to be able where I just select the item out of the listbox and it get all the info, and display it in my txtboxes. But I have tried (Toggle Plain Text) Dim whPoint = Listview1.selecteditems Dim whPoint = Listview1.selecteditems , and a couple more, but I always get a InvalidCastException at: (Toggle Plain Text) GetClassName(whPoint, clsName, Len(clsName)) GetClassName(whPoint, clsName, Len(clsName)) So please help __________________ Forgiveness is the fragrance that the violet sheds on the heal that has crushed it. - Mark Twain Destruction leads to a very rough road, but it also breeds creation.

Mar 26th, 2007, 8:57 AM	#2
melbolt Hobbyist Programmer Join Date: Feb 2005 Location: PA, USA Posts: 242 Rep Power: 4	I have an idea for you, here is what I would do. Since your listview contains a collection of all open windows already, why not also have your listview store each window's handle in the item tag like so. vbnet Syntax (Toggle Plain Text) ListView1.Items(i).Tag = 'code to get the handle here, i is the index ListView1.Items(i).Tag = 'code to get the handle here, i is the index now, when a user clicks on the listview item, retrieve that item's tag(the corresponding window handle), and then put the value in whPoint. I believe this is what you wanted to know but maybe that is not where you were having the trouble? let me know. good luck __________________ I have never let my schooling interfere with my education. -Mark Twain- Xbox live gamertag: melbolt

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Programming Forums > Application Development > Visual Basic .NET

Little help with ListView Boxes