Cursor - Get The Position Of The Mouse Relative To The Browser Control

May 13, 2010

I have a hobby of making webbrowsers. I'm writing a new one, but it has an old webbrowser control in it (CEXWB). This means that I am using IHTMLDocument(s) rather than normal HTMLDocuments. I'm in the process of implementing a ContextMenu, but I need to get the position of the mouse relative to the browser control, so using something like Cursor.Position won't work. The Webbrowser_MouseMove event also won't work. I'm not sure why. I also can't use WithEvents with a HtmlDocument (like in my webbrowser ContextMenu tutorial) as I cannot Convert A System.Windows.Forms.HtmlElement into an mshtml.IHTMLDocument2.

So far, I have this code:

'The event which fires when the ContextMenu for the browser Opens
Private Sub cmenuWB_PopupOpen(ByVal sender As Object, ByVal e As DevComponents.DotNetBar.PopupOpenEventArgs) Handles cmenuWB.PopupOpen

[CODE]...

How I could implement this?

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I am working on a screen cropping program. The program works by expanding the current for to maximum and the opacity level set to 35% so the screencan be seen from behind. The cropping code is below:

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Me.Opacity = 0

[code]....

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I've used the search function but couldn't yield any solutions. Sorry if I didn't look hard enough. Anyway, it's just a quick question. How can I find the mouse cursor X and Y co-ordinates relative to the form itself and NOT the screen?

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I've found example code which declares the following function:

<DllImport("User32.dll", CharSet:=CharSet.Auto, _
CallingConvention:=CallingConvention.StdCall)> _
Public Overloads Shared Function SetWindowsHookEx _

[Code].....

But Appdomain.GetCurrentThreadID generates the warning: "'Public Shared Function GetCurrentThreadId() As Integer' is obsolete: 'AppDomain.GetCurrentThreadId has been deprecated because it does not provide a stable Id when managed threads are running on fibers (aka lightweight threads). To get a stable identifier for a managed thread, use the ManagedThreadId property on Thread."

I've tried using ManagedThreadID, but that doesn't work. The thread ID returned seems to be the logical thread ID of the thread, as it runs in the .net runtime, rather than the Win32 thread identifier.

Calling the function ith AppDomain.GetCurrentThreadID works, but I really would like to have a "stable identifier" for my thread.

Can someone explain to me whether it is possible to use ManagedThreadID in this context (I assume not) and, if not, the things I need to avoid in order to stop the AppDomain.CurrentThreadID from becoming "unstable"?

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Sep 10, 2009

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I can get the mouseposition without problems (Me.PointToClient(Cursor.Position).ToString), but as I said, I can't get the name/text/ID of the control the user dropped the data on. Also, I ned to get the child control's name/ID/Text, not the parent label of course.In addition, it seems as if I can't select the row I click on in the dgv anymore, after I implemented the DoDragDrop on the CellMouseDown event. Any ideas? Should I use another event?

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Oct 1, 2009

How can i know name of control which is in position of mouse (cursor ).

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I have a label (mylabel1) control that is say size 200 by 200.  I then add another label (mylabel2) to it as:

myform1.controls.add(mylabel2)

When the mouse enters mylabel1, I want to say change the backcolor as:

Private Sub mylabel1_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles mylabel1.MouseEnter
mylabel1.backcolor = color.red

[Code].....

this works fine except that when the mouse passes over mylabel2 which was added to the controls collection, it fires the mouseleave event for mylabel1.  Is there a way to do this without having the mouseleave event of mylabel1 having to be checked against the mouseenter event of mylabel2??

I am ultimately going to have a parent container that has multiple children but I don't want the children to effect my changing colors and effects when the mouse has entered the parent.

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I've got a set of controls in a line inside"FollowTableLayoutPanel1", contained within "TableLayoutPanel2".I have them resizing according to the position of the mouse cursor; the closer the mouse cursor is to the vertical centre of the control, the larger the control is. Because FollowTableLayoutPanel1 has its anchor property set to "Top", it recentres itself in TableLayoutPanel2.It is possible for the recentring of FollowTableLayoutPanel1 to move a control one pixel further away from the mouse pointer, which causes the control to shrink, which causes FollowTableLayoutPanel1 to recentre, placing the control closer to the mouse pointer, which causes the control to grow,which causes FollowTableLayoutPanel1 to recentre, which moves the control further away from the mouse cursor, etc., etc., etc.The end result is that the whole setup judders and wobbles, constantly resizing.Full example code is provided below,and can be pasted directly into Form1 of a new project. Positioning the mouse cursor to correctly show the problem is left as an exercise for the reader :

Public Class Form1
Private Sub myInitializeComponent()
Me.components = New System.ComponentModel.Container
Me.TableLayoutPanel2 = New System.Windows.Forms.TableLayoutPanel[code].....

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How do I make the cursor appear in textbox1 after clicking the button?

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I'm trying to get the cursor position within a webbrowser control, and then create a text range starting from the cursor to a specified word or character.I have some code but instead of selecting the specified range it selects the whole html block.

[Code]...

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I My Problems is when i don't put number and the textbox is empty TextBox string value but the cursor is integer i tryed whith if not string.isnullorempty but have an invalidcastexception in SetCursorPos(MousePositionX, MousePositionY) and if i put all as string happens the same whit the infinite value (empty textbox)

Public Class Form1
Private Declare Sub SetCursorPos Lib "User32" (ByVal X As Integer, ByVal Y As Integer)
Private Const MOUSEEVENTF_LEFTDOWN = &H2

[Code]....

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At the moment, I'm using:

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Dim str As String
Dim loc As Integer
If txtInput.Text.Length > 0 Then

[code]......

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I'm trying to set a new cursor position but I get this error:
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Here is the code:
Declare Function SetCursorPos Lib "user32" _
(ByVal x As Long, ByVal y As Long) As Long
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Dim PB As New PictureBox
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[Code]....

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I tried the following:

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[Code]...

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