pinvoke.net: Edit: user32.FindWindowEx

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@pinvoke=http://pinvoke.net/$$$.htm

Summary: The FindWindowEx API

!!!!C# Signature:
 [DllImport("user32.dll", SetLastError = true)]
 public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr hWndChildAfter, string className,  string windowTitle);

!!!!VB Signature:
 <DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
 Private Shared Function FindWindowEx(ByVal parentHandle As IntPtr, _
                                      ByVal childAfter As IntPtr, _
                                      ByVal lclassName As String, _
                                      ByVal windowTitle As String) As IntPtr
 End Function

!!!!User-Defined Types:
None.

!!!!Notes:
None.

!!!!Tips & Tricks:
Please add some!

!!!!Sample Code:
 /// <summary>
 /// Gets the handle to the horizontal scroll bar.
 /// </summary>
 /// <param name="parentControl">The parent window of the scrollbar.</param>
 /// <returns>Handle to the scrollbar window.</returns>
 private IntPtr GetHandleToHorizontalScrollBar(Control parent)
 {
	// Locals
	IntPtr childHandle;
	string appDomainHexedHash;

// Get the hexadecimal value of AppDomain hash code.
	// This value is dynamically appended to the window class name of the child window
	// for .NET Windows Forms.  This name is viewable via the Spy++ tool.
	appDomainHexedHash = AppDomain.CurrentDomain.GetHashCode().ToString("x");

// Find window handle
	childHandle = FindWindowEx(
		parent.Handle,	// Parent handle
		IntPtr.Zero,	// Child window after which to seek
		"WindowsForms10.SCROLLBAR.app.0." + appDomainHexedHash, // Class name to seek (viewable in the Spy++ tool)
		IntPtr.Zero);	// Window title to seek

// Return handle
	return childHandle;
 }

private string GetUrlFromIE()
 {
	IntPtr windowHandle = GetForegroundWindow();
	IntPtr childHandle;
	String strUrlToReturn = "";

//try to get a handle to IE's toolbar container
	childHandle = FindWindowEx(windowHandle,IntPtr.Zero,"WorkerW",IntPtr.Zero);
	if(childHandle != IntPtr.Zero)
	{
		//get a handle to address bar
		childHandle = FindWindowEx(childHandle,IntPtr.Zero,"ReBarWindow32",IntPtr.Zero);
		if(childHandle != IntPtr.Zero)
		{
			// get a handle to combo boxex
			childHandle = FindWindowEx(childHandle, IntPtr.Zero, "ComboBoxEx32", IntPtr.Zero);
			if(childHandle != IntPtr.Zero)
			{
				// get a handle to combo box
				childHandle = FindWindowEx(childHandle, IntPtr.Zero, "ComboBox", IntPtr.Zero);
				if(childHandle != IntPtr.Zero)
				{
					//get handle to edit
					childHandle = FindWindowEx(childHandle, IntPtr.Zero, "Edit", IntPtr.Zero);
					if (childHandle != IntPtr.Zero)
					{
						strUrlToReturn = GetText(childHandle);
					}
				}
			}
		}
	}
	return strUrlToReturn;
 }

!!!!Alternative Managed API:
Do you know one?  Please contribute it!
Referrel URL : http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/windowing/windows/windowreference/windowfunctions/findwindowex.asp
Documentation: FindWindowEx@msdn on MSDN

Here is an alternative Managed API to FindWindow, The article also describes a way to CloseWindow of another process like notepad, not sure if there is such thing in Win32 API, but at least you can do it in .NET! Here is the article:
http://www.mycsharpcorner.com/Post.aspx?postID=32