C# 自定义窗体的最大化、最小化和关闭按钮自定义窗体的最大化、最小化和关闭按钮, C#移动无标题栏

文件名称: C# 自定义窗体的最大化、最小化和关闭按钮

所属分类: C#

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文件大小: 304kb

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上传时间: 2013-12-31

提供者: yua***

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详细说明：自定义窗体的最大化、最小化和关闭按钮, C#移动无标题栏窗体的三种代码： C#移动无标题栏窗体的三种代码：第一种采用，需注意窗体上的控件是否把窗体覆盖了。。。MouseDown、MouseMove、MouseUp事件应该是鼠标所处位置最顶层的控件的事件在窗体的类中声明两个变量 private Point mouseOffset; //记录鼠标指针的坐标 private bool isMouseDown = false; //记录鼠标按键是否按下创建该窗体 MouseDown、MouseMove、MouseUp事件的相应处理程序 private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { int xOffset; int yOffset; if (e.Button == MouseButtons.Left) { xOffset = -e.X ; yOffset = -e.Y ; mouseOffset = new Point(xOffset, yOffs et); isMouseDown = true; } } private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) { if (isMouseDown) { Point mousePos = Control.MousePosition; mousePos.Offset(mouseOffset.X, mouseOffset.Y); Location = mousePos; } } private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) { // 修改鼠标状态isMouseDown的值 // 确保只有鼠标左键按下并移动时，才移动窗体 if (e.Button == MouseButtons.Left) { isMouseDown = false; } } 第二种调用API 未验证 using System.Runtime.InteropServices; [DllImport("user32.dll")] public static extern bool ReleaseCapture(); [DllImport("user32.dll")] public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam); public const int WM_SYSCOMMAND = 0x0112; public const int SC_MOVE = 0xF010; public const int HTCAPTION = 0x0002; private void Form1_MouseDown(object sender, MouseEventArgs e) { ReleaseCapture(); SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0); } 第三种未验证 private bool isMouseDown = false; private Point FormLocation; //form的location private Point mouseOffset; //鼠标的按下位置 [DllImport("user32.dll")] public static extern bool ReleaseCapture(); [DllImport("user32.dll")] public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam); private const int WM_SYSCOMMAND = 0x0112;//点击窗口左上角那个图标时的系统信息 private const int SC_MOVE = 0xF010;//移动信息 private const int HTCAPTION = 0x0002;//表示鼠标在窗口标题栏时的系统信息 private const int WM_NCHITTEST = 0x84;//鼠标在窗体客户区（除了标题栏和边框以外的部分）时发送的消息 private const int HTCLIENT = 0x1;//表示鼠标在窗口客户区的系统消息 private const int SC_MAXIMIZE = 0xF030;//最大化信息 private const int SC_MINIMIZE = 0xF020;//最小化信息 protected override void WndProc(ref Message m) { switch (m.Msg) { case WM_SYSCOMMAND: if (m.WParam == (IntPtr)SC_MAXIMIZE) { m.WParam = (IntPtr)SC_MINIMIZE; } break; case WM_NCHITTEST: //如果鼠标移动或单击 base.WndProc(ref m);//调用基类的窗口过程——WndProc方法处理这个消息 if (m.Result == (IntPtr)HTCLIENT)//如果返回的是HTCLIENT { m.Result = (IntPtr)HTCAPTION;//把它改为HTCAPTION return;//直接返回退出方法 } break; } base.WndProc(ref m);//如果不是鼠标移动或单击消息就调用基类的窗口过程进行处理 } private void Form1_Load(object sender, EventArgs e) { } ------------------------------- 如何在窗体标题栏左边的控制菜单加入自己的菜单啊？我们一般在窗口标题栏点右键或按Alt+空格可以弹出那个菜单。 ------解决方案-------------------- using System.Runtime.InteropServices; [DllImport( "user32.dll ")] public static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert); [DllImport( "user32.dll ")] public static extern bool InsertMenu(IntPtr hMenu, uint uPosition, uint uFlags, uint uIDNewItem, string lpNewItem); public const int MF_BYCOMMAND = 0; public const int MF_STRING = 0; public const int MF_BYPOSITION = 0x400; public const int MF_SEPARATOR = 0x800; private const uint SC_ABOUT = 0x0001; public const int WM_SYSCOMMAND = 0x0112; private void Form1_Load(object sender, EventArgs e) { IntPtr vMenuHandle = GetSystemMenu(Handle, false); InsertMenu(vMenuHandle, 255, MF_STRING, SC_ABOUT, "About... "); } protected override void WndProc(ref Message m) { switch (m.Msg) { case WM_SYSCOMMAND: if ((uint)m.WParam == SC_ABOUT) { MessageBox.Show( "Zswang 路过! "); } break; } base.WndProc(ref m); } ...展开收缩

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