WinForm 无毛边异形窗体

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
namespace CCWin
{//绘图层partial class SkinForm : Form{//控件层private SkinMain Main;//带参构造public SkinForm(SkinMain main){InitializeComponent();//将控制层传值过来this.Main = main;//减少闪烁SetStyles();//初始化Init();}#region 初始化private void Init(){//最顶层TopMost = Main.TopMost;//是否在任务栏显示ShowInTaskbar = Main.SkinShowInTaskbar;//无边框模式FormBorderStyle = FormBorderStyle.None;//自动拉伸背景图以适应窗口BackgroundImageLayout = ImageLayout.Stretch;//还原任务栏右键菜单CommonClass.SetTaskMenu(this);//设置绘图层显示位置this.Location = new Point(Main.Location.X - Main.MainPosition.X, Main.Location.Y - Main.MainPosition.Y);//设置ICOIcon = Main.Icon;//是否显示ICOShowIcon = Main.ShowIcon;//设置大小Size = Main.SkinSize;//设置标题名Text = Main.Text;//设置背景Bitmap bitmaps = new Bitmap(Main.SkinBack, Size);if (Main.SkinTrankColor != Color.Transparent){bitmaps.MakeTransparent(Main.SkinTrankColor);}BackgroundImage = bitmaps;//控制层与绘图层合为一体Main.TransparencyKey = Main.SkinWhetherTank ? Color.Empty : Main.BackColor;Main.Owner = this;//绘制层窗体移动this.MouseDown += new MouseEventHandler(Frm_MouseDown);this.MouseMove += new MouseEventHandler(Frm_MouseMove);this.MouseUp += new MouseEventHandler(Frm_MouseUp);this.LocationChanged += new EventHandler(Frm_LocationChanged);//控制层层窗体移动Main.MouseDown += new MouseEventHandler(Frm_MouseDown);Main.MouseMove += new MouseEventHandler(Frm_MouseMove);Main.MouseUp += new MouseEventHandler(Frm_MouseUp);Main.LocationChanged += new EventHandler(Frm_LocationChanged);}#endregion#region 减少闪烁private void SetStyles(){SetStyle(ControlStyles.UserPaint |ControlStyles.AllPaintingInWmPaint |ControlStyles.OptimizedDoubleBuffer |ControlStyles.ResizeRedraw |ControlStyles.DoubleBuffer, true);//强制分配样式重新应用到控件上UpdateStyles();base.AutoScaleMode = AutoScaleMode.None;}#endregion#region 无标题栏的窗口移动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//窗体按下时private void Frm_MouseDown(object sender, MouseEventArgs e){if (Main.SkinMobile){int xOffset;int yOffset;//点击窗体时，记录鼠标位置，启动移动if (e.Button == MouseButtons.Left){xOffset = -e.X;yOffset = -e.Y;mouseOffset = new Point(xOffset, yOffset);isMouseDown = true;}}}//窗体移动时private void Frm_MouseMove(object sender, MouseEventArgs e){if (Main.SkinMobile){//将调用此事件的窗口保存下Form frm = (Form)sender;//确定开启了移动模式后if (isMouseDown){//移动的位置计算Point mousePos = Control.MousePosition;mousePos.Offset(mouseOffset.X, mouseOffset.Y);//判断是绘图层还是控件层调用了移动事件,并作出相应回馈if (frm == this){Location = mousePos;}else{Main.Location = mousePos;}}}}//窗体按下并释放按钮时private void Frm_MouseUp(object sender, MouseEventArgs e){if (Main.SkinMobile){// 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){//松开鼠标时，停止移动isMouseDown = false;//Top高度小于0的时候，等于0if (this.Top < 0){this.Top = 0;Main.Top = 0 + Main.MainPosition.Y;}}}}//窗口移动时void Frm_LocationChanged(object sender, EventArgs e){//将调用此事件的窗口保存下Form frm = (Form)sender;if (frm == this){Main.Location = new Point(this.Left + Main.MainPosition.X, this.Top + Main.MainPosition.Y);}else{Location = new Point(Main.Left - Main.MainPosition.X, Main.Top - Main.MainPosition.Y);}}#endregion#region 还原任务栏右键菜单protected override CreateParams CreateParams{get{CreateParams cParms = base.CreateParams;cParms.ExStyle |= 0x00080000; // WS_EX_LAYEREDreturn cParms;}}public class CommonClass{[DllImport("user32.dll", EntryPoint = "GetWindowLong", CharSet = CharSet.Auto)]static extern int GetWindowLong(HandleRef hWnd, int nIndex);[DllImport("user32.dll", EntryPoint = "SetWindowLong", CharSet = CharSet.Auto)]static extern IntPtr SetWindowLong(HandleRef hWnd, int nIndex, int dwNewLong);public const int WS_SYSMENU = 0x00080000;public const int WS_MINIMIZEBOX = 0x20000;public static void SetTaskMenu(Form form){int windowLong = (GetWindowLong(new HandleRef(form, form.Handle), -16));SetWindowLong(new HandleRef(form, form.Handle), -16, windowLong | WS_SYSMENU | WS_MINIMIZEBOX);}}#endregion#region 不规则无毛边方法public void SetBits(){if (BackgroundImage != null){//绘制绘图层背景Bitmap bitmap = new Bitmap(BackgroundImage, base.Width, base.Height);if (!Bitmap.IsCanonicalPixelFormat(bitmap.PixelFormat) || !Bitmap.IsAlphaPixelFormat(bitmap.PixelFormat))throw new ApplicationException("图片必须是32位带Alhpa通道的图片。");IntPtr oldBits = IntPtr.Zero;IntPtr screenDC = Win32.GetDC(IntPtr.Zero);IntPtr hBitmap = IntPtr.Zero;IntPtr memDc = Win32.CreateCompatibleDC(screenDC);try{Win32.Point topLoc = new Win32.Point(Left, Top);Win32.Size bitMapSize = new Win32.Size(Width, Height);Win32.BLENDFUNCTION blendFunc = new Win32.BLENDFUNCTION();Win32.Point srcLoc = new Win32.Point(0, 0);hBitmap = bitmap.GetHbitmap(Color.FromArgb(0));oldBits = Win32.SelectObject(memDc, hBitmap);blendFunc.BlendOp = Win32.AC_SRC_OVER;blendFunc.SourceConstantAlpha = Byte.Parse(Main.SkinOpacity.ToString());blendFunc.AlphaFormat = Win32.AC_SRC_ALPHA;blendFunc.BlendFlags = 0;Win32.UpdateLayeredWindow(Handle, screenDC, ref topLoc, ref bitMapSize, memDc, ref srcLoc, 0, ref blendFunc, Win32.ULW_ALPHA);}finally{if (hBitmap != IntPtr.Zero){Win32.SelectObject(memDc, oldBits);Win32.DeleteObject(hBitmap);}Win32.ReleaseDC(IntPtr.Zero, screenDC);Win32.DeleteDC(memDc);}}}#endregion#region 重载背景与拉伸更改时事件protected override void OnBackgroundImageChanged(EventArgs e){base.OnBackgroundImageChanged(e);SetBits();}protected override void OnResize(EventArgs e){base.OnResize(e);SetBits();}#endregion}
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;namespace CCWin
{//控件层public partial class SkinMain : Form{//绘制层private SkinForm skin;public SkinMain(){InitializeComponent();//减少闪烁SetStyles();//初始化Init();}#region 初始化private void Init(){//不显示在Windows任务栏中ShowInTaskbar = false;}#endregion#region 减少闪烁private void SetStyles(){SetStyle(ControlStyles.UserPaint |ControlStyles.AllPaintingInWmPaint |ControlStyles.OptimizedDoubleBuffer |ControlStyles.ResizeRedraw |ControlStyles.DoubleBuffer, true);//强制分配样式重新应用到控件上UpdateStyles();base.AutoScaleMode = AutoScaleMode.None;}#endregion#region 全部显示public void AllShow(){this.Show();if (skin != null){skin.Show();}}#endregion#region 全部隐藏public void AllHide(){skin.Hide();this.Hide();}#endregion#region 变量属性private int _gradienttime = 200;[Category("Skin")][DefaultValue(200)][Description("控件层渐变特效时长(越小越快)")]public int GradientTime{get { return _gradienttime; }set{if (_gradienttime != value){_gradienttime = value < 0 ? 0 : value;}}}private Size _skinsize;[Category("Skin")][Description("绘图层窗口大小")]public Size SkinSize{get { return _skinsize; }set{if (_skinsize != value){_skinsize = value;if (skin != null){skin.Size = _skinsize;}//验证下宽高BindSize();//重新应用下绘图层背景BindBack();}}}//不显示FormBorderStyle属性[Browsable(false)][EditorBrowsable(EditorBrowsableState.Never)][DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]public new FormBorderStyle FormBorderStyle{get { return base.FormBorderStyle; }set { base.FormBorderStyle = FormBorderStyle.None; }}private Bitmap _skinback;[Category("Skin")][Description("绘图层窗口背景")]public Bitmap SkinBack{get { return _skinback; }set{if (_skinback != value){_skinback = value;//重新应用下绘图层背景BindBack();if (skin != null){Bitmap bitmap = new Bitmap(SkinBack, SkinSize);if (SkinTrankColor != Color.Transparent){bitmap.MakeTransparent(SkinTrankColor);}skin.BackgroundImage = bitmap;}}}}private int _skinopacity = 255;[Browsable(true)][Category("Skin")][Description("绘图层窗口透明度(0-255)")][DefaultValue(255)]public int SkinOpacity{get { return _skinopacity; }set{if (_skinopacity != value){//如果赋值大与255，就等于255_skinopacity = value > 255 ? 255 : value;if (skin != null){skin.SetBits();}}}}private Point _mainposition;[Category("Skin")][Description("窗口在绘图层位置")]public Point MainPosition{get { return _mainposition; }set{if (_mainposition != value){_mainposition = value;//验证下宽高BindSize();//重新应用下绘图层背景BindBack();if (skin != null){Location = new Point(skin.Left + MainPosition.X, skin.Top + MainPosition.Y);}}}}private Color _skintrankcolor = Color.Transparent;[Category("Skin")][Description("绘图层需要透明的颜色")][DefaultValue(typeof(Color), "Color.Transparent")]public Color SkinTrankColor{get { return _skintrankcolor; }set{if (_skintrankcolor != value){_skintrankcolor = value;if (BackgroundImage != null){backs();}if (skin != null){Bitmap bitmap = new Bitmap(SkinBack, SkinSize);if (SkinTrankColor != Color.Transparent){bitmap.MakeTransparent(SkinTrankColor);}skin.BackgroundImage = bitmap;}}}}private bool _skinwhethertank = true;[Category("Skin")][Description("绘图层是否开启位图仿透明\r\n注意(SkinOpacity < 255时，此属性为False可达到背景透明，控件不透明的效果。)")][DefaultValue(typeof(bool), "true")]public bool SkinWhetherTank{get { return _skinwhethertank; }set{if (_skinwhethertank != value){_skinwhethertank = value;if (skin != null){BindBack();}}}}private bool _skinshowintaskbar = true;[Category("Skin")][Description("绘图层是否出现在Windows任务栏中。")][DefaultValue(typeof(bool), "true")]public bool SkinShowInTaskbar{get { return _skinshowintaskbar; }set{if (_skinshowintaskbar != value){_skinshowintaskbar = value;}}}private bool _skinmobile = true;[Category("Skin")][Description("窗体是否可以移动")][DefaultValue(typeof(bool), "true")]public bool SkinMobile{get { return _skinmobile; }set{if (_skinmobile != value){_skinmobile = value;}}}#endregion#region 绑定背景public void BindBack(){//绘图层背景属性不等于空，绘图层宽高不等于0，控件层宽高不等于0时才绑定背景if (_skinback != null && SkinSize != new Size(0, 0) && this.Size != new Size(0, 0)){//在设计器时，始终显示裁剪背景if (DesignMode){backs();}else{if (SkinWhetherTank){backs();}else{BackgroundImage = null;}}}}//裁剪透明做背景public void backs(){//裁剪下图片Bitmap back = new Bitmap(SkinBack, _skinsize);Rectangle cloneRect = new Rectangle(_mainposition.X, _mainposition.Y, Width, Height);PixelFormat format = back.PixelFormat;Bitmap cloneBitmap = back.Clone(cloneRect, format);if (SkinTrankColor != Color.Transparent){cloneBitmap.MakeTransparent(_skintrankcolor);}//将裁剪好的图片给控件层赋值this.BackgroundImage = cloneBitmap;}#endregion#region 验证大小private void BindSize(){//判断控件层和绘图层宽高都不等于0时if (Width != 0 && Height != 0 && SkinSize != new Size(0, 0)){//控件层宽度 大于 (绘图层宽度 - 控件层所在绘图层X值)时if (Width > SkinSize.Width - MainPosition.X){//等于最大限制的宽度Width = SkinSize.Width - MainPosition.X;}//控件层宽度 大于 (绘图层宽度 - 控件层所在绘图层Y值)时if (Height > SkinSize.Height - MainPosition.Y){//等于最大限制的高度Height = SkinSize.Height - MainPosition.Y;}}}#endregion#region 重载事件//窗体加载时protected override void OnLoad(EventArgs e){if (!DesignMode){skin = new SkinForm(this);skin.Show();//淡入特效Win32.AnimateWindow(this.Handle, GradientTime, Win32.AW_BLEND | Win32.AW_ACTIVATE);}base.OnLoad(e);}//窗体关闭时protected override void OnClosing(CancelEventArgs e){this.Owner.Close();base.OnClosing(e);}//大小改变时protected override void OnResize(EventArgs e){base.OnResize(e);//控制层宽高 大于或等于 （绘制层宽高 - 控制层在绘图层的位置XY）时重新绑定背景 if (Width <= (SkinSize.Width - MainPosition.X) && Height <= (SkinSize.Height - MainPosition.Y)){BindBack();}else{//否则重新验证宽高大小，并给出回馈BindSize();}}#endregion}
}

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