大佬们帮我看看哪有错
这注册窗口类的返回值一直是零啊都抄网上的了还是0，大佬们帮我看看啊public partial class Form1 : Form{
static extern bool UpdateWindow(IntPtr hWnd);
static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
public static extern IntPtr CreateWindowEx(
int dwExStyle,
string lpClassName,
string lpWindowName,
int dwStyle,
int x,
int y,
int nWidth,
int nHeight,
IntPtr hWndParent,
IntPtr hMenu,
IntPtr hInstance,
IntPtr lpParam);
static extern System.UInt16 RegisterClassW(
ref WNDCLASSEX lpWndClass
);
struct WNDCLASSEX
{
public int cbSize;
public int style;
public IntPtr lpfnWndProc; // not WndProc
public int cbClsExtra;
public int cbWndExtra;
public IntPtr hInstance;
public IntPtr hIcon;
public IntPtr hCursor;
public IntPtr hbrBackground;
public string lpszMenuName;
public string lpszClassName;
public IntPtr hIconSm;
}
static extern IntPtr DefWindowProc(IntPtr hWnd, uint uMsg, IntPtr wParam, IntPtr lParam);
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button1_Click_1(object sender, EventArgs e)
{
WNDCLASSEX wind_class = new WNDCLASSEX();
wind_class.cbSize = Marshal.SizeOf(typeof(WNDCLASSEX));
wind_class.style = 0x00020000;
wind_class.hbrBackground = (IntPtr)5;
wind_class.cbClsExtra = 0;
wind_class.cbWndExtra = 0;
wind_class.hInstance = Marshal.GetHINSTANCE(GetType().Module);
wind_class.hIcon = this.Icon.Handle;
wind_class.hCursor = IntPtr.Zero;
wind_class.lpszMenuName = string.Empty;
wind_class.lpszClassName = "MyClass";
wind_class.lpfnWndProc = DefWindowProc(IntPtr.Zero, 0, IntPtr.Zero, IntPtr.Zero);
Text = RegisterClassW(ref wind_class).ToString();
IntPtr lolo = CreateWindowEx(0, "MyClass", "MyClass", 0, 0, 0, 30, 40, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
ShowWindow(lolo, 1);
UpdateWindow(lolo);
}
}
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