表單移動 表單陰影API

標籤：bsp   bool   api   and   sha   .dll   命名空間   param   移動   

表單移動API

//表單移動API[DllImport("user32.dll")]public static extern bool ReleaseCapture();[DllImport("user32.dll")]public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int IParam);public const int WM_SYSCOMMAND = 0x0112;public const int SC_MOVE = 0xF010;public const int HTCAPTION = 0x0002;[DllImport("user32")]private static extern int SendMessage(IntPtr hwnd, int wMsg, int wParam, IntPtr lParam);private const int WM_SETREDRAW = 0xB;private void Form1_MouseDown(object sender, MouseEventArgs e){    if (this.WindowState == FormWindowState.Normal)    {        ReleaseCapture();        SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);    }}

表單陰影API

1、添加命名空間：using System.Runtime.InteropServices;  2、定義常量值及函數：private const int CS_DropSHADOW = 0x20000;  private const int GCL_STYLE = (-26);  [DllImport("user32.dll", CharSet = CharSet.Auto)]  public static extern int SetClassLong(IntPtr hwnd, int nIndex, int dwNewLong);  [DllImport("user32.dll", CharSet = CharSet.Auto)]  public static extern int GetClassLong(IntPtr hwnd, int nIndex);3、構造方法下引用：SetClassLong(this.Handle, GCL_STYLE, GetClassLong(this.Handle, GCL_STYLE) | CS_DropSHADOW);  

 

表單移動 表單陰影API