Build your own address bar in Visual C # .NET

This article:

Overview

Establish your own address bar

Establish an example program

At last

-------------------------------------------------- -------------------------------------------

Overview:

This article describes how to create a simple, commonly used user control-address bar.

I believe that as long as I am online, I know that IE has an input box that provides you enter the website you want to go. In this input box, you only need to enter some characters, which is displayed in its drop-down list box, showing the content (memory function) that you enter.

If you only ask if you want to enter a string. So we can use TEXTBOX and other controls directly to complete the input box. But if you want to make your input box memory function. So, what we need is to ask you to read the previously entered content.

Ok, nonsense is half a day. So, we have begun to explain how to make our address bar have memory.

-------------------------------------------------- -------------------------------------------

Establish your own address bar:

First, we have to walk two steps.

The first step, we must first understand that the content of our IE address bar is from where. Because I only know where it is, we can understand our data.

So let's take a look at it, IE what is in regedit (registry). Because regeidt is a very nice database (^ _ ^) in Windows, it can store some things related to the entire machine in it.

In regedit, related to IE is:

Of course, this is only part, and some are:

We want the data of "Software / Microsoft / Internet Explorer / typeDURLS" in the first picture. Otherwise, we can't do anything about the memory function we write. Or, some other data appear. To know, the data saved in the regedit can be some critical data. If you are not careful to be dropped, then l.

OK, now I have found the data we have to come. So, we have to start building our own address bar with memory features.

Of course, is it enough? Of course, it is enough. But don't you want your address bar to make a powerful? So, we write such a class to see:

1. New projects, choose New Category Library, the name is smooth. For example: ControlSet.urlControl.

2. Add reference system.windows.forms.dll in resource management.

3, then, change the class1.cs to unmanagethods.cs in the resource manager, then replace with the following code:

Using system;

Using system.Runtime.InteropServices;

Namespace Controlset.urlControl

{

[Structlayout (layoutkind.sequential)]

INTERNAL STRUCT RECT

{

Public int LEFT;

Public int top;

Public int right;

Public Int Bottom;

}

[Structlayout (layoutkind.sequential)]

Internal Struct ComboBoxInfo

{

Public int Cbsize;

Public Rect Rcitem; Public Rect RcButton;

Public INTPTR StateButton;

Public INTPTR HWNDCOMBO;

Public intptr hwndite;

Public INTPTR HWNDLIST;

}

///