C# Discussion Boards - CodeProject

Capture events of running instance of IE

18-Mar-06 22:32

You'll need to get a reference to an instance of the DTE interface (I can't remember how you do this), from there on you go through something like this:

DTE.Solution.Projects, I don't know how to get the currently opened project but once you have then then each Project class contained inside Projects has a FileName property which is what you want.

Sorry I don't know how to get the active project but this I think is the correct way to go about it.

Ed

Mario Williams18-Mar-06 20:06

Mario Williams

18-Mar-06 20:06

I would like to capture the specific events of running instances of IE. I am using the ShellWindows to get all the running instances of IE. I can get the some of the events to fire, such as OnTitleChange. But, I cannot get the WindowSetLeft event to fire. I am trying to use this event so that I know when the user is moving one of the IE windows on the screen. I need to know the position of each IE window when it changes. Thanks for the help in advance.

using System;
using System.IO;
using SHDocVw;
using System.Text;
using System.Drawing;
using System.Collections;
using System.Windows.Forms;
using System.ComponentModel;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace JTCG.JWS.Browse.BrowseTOC
{
public class ActivityMonitor
{

[DllImport("User32.Dll")]
public static extern void GetWindowText(int h, StringBuilder s, int nMaxCount);

//variable declaration
private SHDocVw.InternetExplorer browser;
private SHDocVw.ShellWindows shellWindows;
private ArrayList Current_IE_Handles;

#region Constructor

public ActivityMonitor()
{
Current_IE_Handles = new ArrayList();
shellWindows = new SHDocVw.ShellWindowsClass();
shellWindows.WindowRegistered += new SHDocVw.DShellWindowsEvents_WindowRegisteredEventHandler(shellWindows_WindowRegistered);
shellWindows.WindowRevoked += new SHDocVw.DShellWindowsEvents_WindowRevokedEventHandler(shellWindows_WindowRevoked);
}

#endregion

// THIS EVENT IS FIRED WHEN THE A NEW BROWSER IS CLOSED
private void shellWindows_WindowRevoked(int z)
{
//variable declaration
string filnam;
ArrayList Closed_IE;
StringBuilder sb;

//variable initialization
Closed_IE = new ArrayList();
sb = new StringBuilder(1024);

foreach (SHDocVw.InternetExplorer ie in shellWindows)
{
filnam = Path.GetFileNameWithoutExtension(ie.FullName).ToLower();

if (filnam.Equals("iexplore"))
{
Closed_IE.Add(ie.HWND.ToString());
}
}

for (int i=0; (i< this.Current_IE_Handles.Count); i++)
{
bool check = false;

for (int j=0; (j<Closed_IE.Count); j++)
{
if (Convert.ToInt32(this.Current_IE_Handles[i]) == Convert.ToInt32(Closed_IE[j]))
check = true;
}
//IE handle not in ArrayList
if (check == false)
{
this.Current_IE_Handles.RemoveAt(i);
break;
}
}
}

// THIS EVENT IS FIRED WHEN THE A NEW BROWSER IS OPEN
private void shellWindows_WindowRegistered(int z)
{
//variable declaration
string filnam;
StringBuilder sb;

//variable initialization
sb = new StringBuilder(1024);

//loop through all windows in shell
foreach (SHDocVw.InternetExplorer ie in shellWindows)
{
filnam = Path.GetFileNameWithoutExtension(ie.FullName).ToLower();

if (filnam.Equals("iexplore"))
{
browser = ie;

bool check = true;

for (int i=0; (i<Current_IE_Handles.Count); i++)
{
if (Current_IE_Handles[i].ToString() == browser.HWND.ToString())
{
check = false;
break;
}
}

if (check == true)
{
Current_IE_Handles.Add(browser.HWND.ToString());
//-----------------------------------------------------------------
//-------------------My code below---------------------------------

IWebBrowserApp m_WebBrowserApp = (IWebBrowserApp)browser;

//set up events may want to make below code a method
if (m_WebBrowserApp != null)
{
//Application.DoEvents();

DWebBrowserEvents2_WindowSetLeftEventHandler DSetLeft = new DWebBrowserEvents2_WindowSetLeftEventHandler(WindowSetLeft);
browser.WindowSetLeft += DSetLeft;

DWebBrowserEvents2_TitleChangeEventHandler DTitleChangeE = new DWebBrowserEvents2_TitleChangeEventHandler(OnTitleChange);
browser.TitleChange += DTitleChangeE;
}

//-----------------------END of my code----------------------------
}
}
}
}

static void OnTitleChange(String Text)
{
MessageBox.Show("Title changes to " + Text);
}

static void WindowSetLeft(int Left)
{
MessageBox.Show("set left : " + Left.ToString());
}
}
}

Mario Williams
Systems Analyst (DoD)
Eglin Air Force Base, FL

How to replace a control in designer ?

chloh18-Mar-06 19:21

chloh

18-Mar-06 19:21

Say I have put some standard Button in a form.
Then I created a ButtonEx control inherited from Button.
How do I quickly replace all Button in the form with ButtonEx, and copying the properties of Button to ButtonEx automatically?

Thanks.

Re: How to replace a control in designer ?

leppie18-Mar-06 19:30

leppie

18-Mar-06 19:30

Open the code view, and use a simple search and replace.

xacc.ide-0.1.3.2

Re: How to replace a control in designer ?

chloh18-Mar-06 20:26

chloh

18-Mar-06 20:26

Thanks a lot Smile | :)

How to write a flat menu and toolbar like VS2005?

Newlad18-Mar-06 17:47

Newlad

18-Mar-06 17:47

Hello,
Thanks for your visit.this is my first message.

i am very love the Menu and toolbar in VS2005,but i am a new person in C#,
can some one give me a think about how to write it?
or give me some source code about it.

thanks to everyone,with best wishes.

PS:My english is pool,if have some mistake in this message,don't laugh me.

very good

Re: How to write a flat menu and toolbar like VS2005?

Ravi Bhavnani18-Mar-06 17:57

Ravi Bhavnani

18-Mar-06 17:57

Welcome to CP! See this[^] tutorial to get started.

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

temp555618-Mar-06 17:27

temp5556

18-Mar-06 17:27

Hi,

I am learning C# gui, I was wondering how to match GUI similar to RealPlayer, MusicMatch, iTune or Windows Media Player.

Mainly - Nom Rectangular GUI, rounded buttons, Goodlooking scrollbar etc???

Any help is appreciated.

Thanks in advance.

Ravi Bhavnani18-Mar-06 18:01

Ravi Bhavnani

18-Mar-06 18:01

Perhaps this[^] article may help?

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Also...

Ravi Bhavnani18-Mar-06 18:07

Ravi Bhavnani

18-Mar-06 18:07

Also see this[^] CP article.

/ravi

My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib(at)ravib(dot)com

Simple question(i hope) about ComboBox

e-laj18-Mar-06 11:24

18-Mar-06 11:24

i have the folowing class:

class MyClass<br />
{<br />
	public MyClass(string str)<br />
	{<br />
		Str = str;<br />
	}<br />
<br />
	public string Str;<br />
<br />
	public override string ToString()<br />
	{<br />
		return Str;<br />
	}<br />
}

now lets add some items to a ComboBox:

comboBox1.Items.Add(new MyClass("aaa"));<br />
comboBox1.Items.Add(new MyClass("bbb"));<br />
comboBox1.Items.Add(new MyClass("ccc"));

and now....
suppose that i want to change the first item Str member to "ddd":
the following line doesn't work:

((MyClass)comboBox1.Items[0]).Str = "ddd";

But the following will work:

comboBox1.Items[0] = new MyClass("ddd");

It seems that a copy of the item is returned from the object collection in the ComboBox.
Does anyone know how it is possible to change the item directly without replacing it?

Thanks in advanced, Ilan

Ed.Poore18-Mar-06 12:49

18-Mar-06 12:49

Have you tried invalidating the combobox after you change the Str property?

I've just re-tried this code out and it worked as you want and as I expected.

Sorry, problem with your dev system not .NET Sigh | :sigh:

e-laj18-Mar-06 13:25

18-Mar-06 13:25

I am sorry - it doesn't work even if i validating the combo box:
here is the complete code again:

<br />
        private void Form1_Load(object sender, EventArgs e)<br />
        {<br />
			comboBox1.Items.Add(new MyClass("aaa"));<br />
			comboBox1.Items.Add(new MyClass("bbb"));<br />
			comboBox1.Items.Add(new MyClass("ccc"));<br />
<br />
			// now lets try to change the first item <br />
			((MyClass)comboBox1.Items[0]).Str = "ddd"; // this doesn't reflected<br />
			comboBox1.Invalidate();<br />
        }<br />
...<br />
...<br />
...<br />
class MyClass<br />
{<br />
	public MyClass(string str)<br />
	{<br />
		Str = str;<br />
	}<br />
<br />
	public string Str;<br />
<br />
	public override string ToString()<br />
	{<br />
		return Str;<br />
	}<br />
}<br />
<br />

Well, i am usin VS2005.

Guffa18-Mar-06 14:19

Guffa

18-Mar-06 14:19

That doesn't work, because the combobox is already in the state of invalid when you try to invalidate it. The combobox has already detected that you have added items to it, and is only waiting for your code to end to redraw itself. When the items were added the ToString method was called to get their values, and those are the values that will be used to redraw the combobox. The combobox hasn't detected that you have changed the underlying data of one of the items since then.

If you change the item and invalidate the combobox once the combobox has been drawn, for an example on the click event of a button, it will work.

---
b { font-weight: normal; }

e-laj18-Mar-06 14:31

18-Mar-06 14:31

I am sorry - i tried and tried and it doesn't work, pay attention that the following WILL work fine:

<br />
			comboBox1.Items.Add(new MyClass("aaa"));<br />
			comboBox1.Items.Add(new MyClass("bbb"));<br />
			comboBox1.Items.Add(new MyClass("ccc"));<br />
<br />
			// now lets try to change the first item <br />
			((MyClass)comboBox1.Items[0]).Str = "ddd"; // this doesn't reflected<br />
			<br />
			// By "reloading" the object every thing is OK<br />
			for(int i = 0; i < comboBox1.Items.Count; i++)<br />
			{<br />
				comboBox1.Items[i] = comboBox1.Items[i];<br />
			}<br />
<br />

and i also trie to put the code of changing the item in the click event - NOTHING - NADDA - the combo box doesn't reflect the change.

If you succeed in this simple task it would be nice if you POST this code.

Thanks again - Ilan

Ed.Poore18-Mar-06 22:26

18-Mar-06 22:26

Ok, problem sorted

There is a method in the reflector class called RefreshItem(int index) which when called redraws the item, looking in reflector at the code all it does is this:

comboBox1.Items[0] = comboBox1.Items[0];

Which forces the combobox to reload the data. What is happening is that becase you are changing a property of the item not the actual item itself the combobox has no way of knowing when an item has been changed because the item class does not raise an event stating that it has had a property changed.

Now for the problem, ComboBox.RefreshItem(int index); is protected overrides so you cannot call it, but by looking in reflector you can see what you're supposed to do and do it yourself.

So in summary after you have changed the property (Str), do this:

comboBox1.Items[index] = comboBox1.Items[index];

It works

Thanks for pointing out this "bug" to me though

Ed

e-laj19-Mar-06 2:57

19-Mar-06 2:57

Well Ed - Now we agree on the problem and its solution Smile | :)

However - when you say "reflector" what do you mean, i don't know this tool.

Ed.Poore wrote:
ow for the problem, ComboBox.RefreshItem(int index); is protected overrides so you cannot call it, but by looking in reflector you can see what you're supposed to do and do it yourself

Thank again for sharing my problem.

Ilan

e-laj19-Mar-06 3:21

19-Mar-06 3:21

Well i think i found it "Reflector for .NET" from Lutz Roeder... Or maybe you are using other tool?

Ed.Poore19-Mar-06 7:08