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C#-WinForm-无边框窗体的移动和阴影-API
//窗体移动API,先导入命名空间,在委托MouseDown事件 //移动前准备 [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; //窗体移动事件 private void Form1_MouseDown(object sender, MouseEventArgs e) { if (this.WindowState == FormWindowState.Normal) { ReleaseCapture(); SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0); } }
复制API代码到窗体代码结构函数下方,引用命名空间,委托MouseDown的事件(李献策lxc)
//窗体阴影API,放在结构函数上方,修改结构函数即可 const int CS_DropSHADOW = 0x20000; 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); public Form1() { InitializeComponent(); SetClassLong(this.Handle, GCL_STYLE, GetClassLong(this.Handle, GCL_STYLE) | CS_DropSHADOW); }
复制API代码到结构函数上方,修改结构函数即可
API - 通用功能接口
做一个如下无边框的窗体
一、五边框窗体移动
复制API代码到窗体代码结构函数下方,引用命名空间,委托MouseDown的事件
public Form1() { InitializeComponent(); } //窗体移动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); } }
二、窗体阴影
C#-WinForm-无边框窗体的移动和阴影-API
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