WPF custom Controls--using the Win32 control

This article supporting source code

Although WPF is very powerful, some things Win32 have done well, we can totally copycat.

One. How to create a Win32 control

1. First define a Wndclassex class, refer to the Http://baike.baidu.com/view/1750396.html?tp=0_11

WNDCLASSEX　wndClsEx　=　new　 WNDCLASSEX();
wndClsEx.Init();//(uint)Marshal.SizeOf(this);得到类的大小
wndClsEx.style　=　WndClassType.CS_VREDRAW　|　WndClassType.CS_HREDRAW;//窗口的风格
wndClsEx.lpfnWndProc　=　new　WndProcDelegate(User32Dll.DefWindowProc);//处理类的消息，这 里用的是默认处理
wndClsEx.cbClsExtra　=　0;//指定紧跟在窗口类结构后的附加字节数
wndClsEx.cbWndExtra　=　0;//如果一个应用程序在资源中用CLASS伪指令注册一个对话框类时，则必 须把这个成员设成DLGWINDOWEXTRA
wndClsEx.hInstance　=　Kernal32Dll.GetModuleHandle (null);//模块的句柄
wndClsEx.hIcon　=　IntPtr.Zero;//图标句柄
wndClsEx.hIconSm　= 　IntPtr.Zero;//和窗口类关联的小图标。如果该值为NULL。则把hCursor中的图标转换成大小合适的小 图标。
wndClsEx.hCursor　=　IntPtr.Zero;//光标句柄
wndClsEx.hbrBackground　=　 IntPtr.Zero;//背景画刷句柄
wndClsEx.lpszClassName　=　m_WndClsName;//定义自己的类名， 比如curry，或XXX
wndClsEx.lpszMenuName　=　null;//菜单名称

2. Registration class, return value not 0 for success

bool　success　=　User32Dll.RegisterClassEx(ref　wndClsEx)　!=　 0;
Debug.Assert(success,　"RegisterWndClass　failed.");

3. Create a window, refer to Http://baike.baidu.com/view/1080304.htm

IntPtr　windowHandle　=　 User32Dll.CreateWindowEx(ExtendedWndStyle.WS_EX_LAYOUTRTL//扩展样式
,　m_WndClsName 　//刚才注册完的名称
,　null　　　　　//窗体名称
,　WndStyle.WS_VISIBLE　|　 WndStyle.WS_CHILD　//子窗体
,　this.Left　//X坐标
,　this.Top　//Y　坐标
,　 this.Width　//宽度
,　this.Height　//高度
,　this.Parent.Handle　//父对象句柄
,　IntPtr.Zero　//上下文菜单句柄
,　Kernal32Dll.GetModuleHandle(null)//实例句柄
,　IntPtr.Zero//指向一个值的指针，该值传递给窗口　WM_CREATE消息
);
Debug.Assert(User32Dll.IsWindow(windowHandle),　"CreateWindowEx　 failed.");

If you want to refer to the other window's style information, you can use the Spy + + tool to see

4. Display window

User32Dll.ShowWindow(windowHandle,　(int) (this.Visible　?　WindowShowStyle.Show　:　WindowShowStyle.Hide));

5. Destroy the window and unregister the class

User32Dll.DestroyWindow(windowHandle);
windowHandle　=　 IntPtr.Zero;

User32Dll.UnregisterClass(m_WndClsName,　 Kernal32Dll.GetModuleHandle(null));