// 導入按鈕背景圖片 private Bitmap bmpBob = new Bitmap(typeof(Form1), "bob.bmp"); public Form1() { InitializeComponent(); // 產生不規則窗體 BitmapRegion.CreateControlRegion(this, bmpFrmBack);
// 產生不規則按鈕 BitmapRegion.CreateControlRegion(button1, bmpBob); } } 如果你想在鼠標盡入/離開按鈕的時候顯示不同不規則按鈕, 只需要在按鈕的 MouseLeave和MouseEnter 裡面寫上下面的代碼就可以了. private void button1_MouseEnter(object sender, System.EventArgs e) { // 產生不規則按鈕 BitmapRegion.CreateControlRegion(button1, bmpBobSay); } private void button1_MouseLeave(object sender, System.EventArgs e) { // 產生不規則按鈕 BitmapRegion.CreateControlRegion(button1, bmpBob); } 移動不規則窗口 因為不規則窗口沒有標題欄, 怎麼移動呢? 下面代碼給你答案, 代碼很簡單, 我就不做中文解釋了 ( 我 做中文的部分就是不規則窗體 ) private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) { // Check if dragging of the form has occurred if(e.Button == MouseButtons.Left) { // If this is the first mouse move event for left click dragging // of the form, store the current point clicked so that we can use // it to calculate the form's new location in subsequent mouse move // events due to left click dragging of the form if(isFirst == true) { // Store previous left click position prevLeftClick = new Point(e.X, e.Y); // Subsequent mouse move events will not be treated as first time, // until the left mouse click is released or other mouse click // occur isFirst = false; } // On subsequent mouse move events with left mouse click down. // (i.e. During dragging of form) else { // This flag here is to do alternate processing for the form // dragging because it causes serious flicking when u allow // every such events to change the form's location. // You can try commenting this out to see what i mean if(toBlock == false) this.Location = new Point(this.Location.X + e.X - prevLeftClick.X, this.Location.Y + e.Y - prevLeftClick.Y); // Store new previous left click position prevLeftClick = new Point(e.X, e.Y); // Allow or deny next mouse move dragging event toBlock = !toBlock; } } // This is a new mouse move event so reset flag else isFirst = true; } 完成程序列表 BitmapRegion.cs using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; namespace BitmapRegionTest { /// <summary> /// Summary description for BitmapRegion. /// </summary> public class BitmapRegion { public BitmapRegion() {} /// <summary> /// Create and apply the region on the supplIEd control /// </summary> /// <param name="control">The Control object to apply the region to</param> /// <param name="bitmap">The Bitmap object to create the region from</param> public static void CreateControlRegion(Control control, Bitmap bitmap) { // Return if control and bitmap are null if(control == null || bitmap == null) return;
// Set our control's size to be the same as the bitmap control.Width = bitmap.Width; control.Height = bitmap.Height; // Check if we are dealing with Form here if(control is System.Windows.Forms.Form) { // Cast to a Form object Form form = (Form)control; // Set our form's size to be a little larger that the bitmap just // in case the form's border style is not set to none in the first place form.Width += 15; form.Height += 35; // No border form.FormBorderStyle = FormBorderStyle.None; // Set bitmap as the background image form.BackgroundImage = bitmap; // Calculate the graphics path based on the bitmap supplIEd GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap); // Apply new region form.Region = new Region(graphicsPath); } // Check if we are dealing with Button here else if(control is System.Windows.Forms.Button) { // Cast to a button object Button button = (Button)control; // Do not show button text button.Text = "";
// Change cursor to hand when over button button.Cursor = Cursors.Hand; // Set background image of button button.BackgroundImage = bitmap;
// Calculate the graphics path based on the bitmap supplIEd GraphicsPath graphicsPath = CalculateControlGraphicsPath(bitmap); // Apply new region button.Region = new Region(graphicsPath); } } /// <summary> /// Calculate the graphics path that representing the figure in the bitmap /// excluding the transparent color which is the top left pixel. /// </summary> /// <param name="bitmap">The Bitmap object to calculate our graphics path from</param> /// <returns>Calculated graphics path</returns> private static GraphicsPath CalculateControlGraphicsPath(Bitmap bitmap) { // Create GraphicsPath for our bitmap calculation GraphicsPath graphicsPath = new GraphicsPath(); // Use the top left pixel as our transparent color Color colorTransparent = bitmap.GetPixel(0, 0); // This is to store the column value where an opaque pixel is first found. // This value will determine where we start scanning for trailing opaque pixels. int colOpaquePixel = 0; // Go through all rows (Y axis) for(int row = 0; row < bitmap.Height; row ++) { // Reset value colOpaquePixel = 0; // Go through all columns (X axis) for(int col = 0; col < bitmap.Width; col ++) { // If this is an opaque pixel, mark it and search for anymore trailing behind if(bitmap.GetPixel(col, row) != colorTransparent) { // Opaque pixel found, mark current position colOpaquePixel = col; // Create another variable to set the current pixel position int colNext = col; // Starting from current found opaque pixel, search for anymore opaque pixels // trailing behind, until a transparent pixel is found or minimum width is reached for(colNext = colOpaquePixel; colNext < bitmap.Width; colNext ++) if(bitmap.GetPixel(colNext, row) == colorTransparent) break; // Form a rectangle for line of opaque pixels found and add it to our graphics path graphicsPath.AddRectangle(new Rectangle(colOpaquePixel, row, colNext - colOpaquePixel, 1)); // No need to scan the line of opaque pixels just found col = colNext; } } } // Return calculated graphics path return graphicsPath; } } } /////////////////////////////////////////////////////////////////////////////////////////// ////////// Form1.cs using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; //using System.Runtime.InteropServices; namespace BitmapRegionTest { /// <summary> /// Summary description for Form1. /// </summary> public class Form1 : System.Windows.Forms.Form { // [DllImport("user32.dll")] // private static extern bool PostMessage(IntPtr hWnd, int msg, long wParam, long lParam); private System.Windows.Forms.Button button1; private System.Windows.Forms.Button button2; private System.Windows.Forms.Button button3; private System.Windows.Forms.Button button4; /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; // Load our bitmaps private Bitmap bmpFrmBack = new Bitmap(typeof(Form1), "back.bmp"); private Bitmap bmpBob = new Bitmap(typeof(Form1), "bob.bmp"); private Bitmap bmpBobSay = new Bitmap(typeof(Form1), "bobsay.bmp"); private Bitmap bmpSmiles = new Bitmap(typeof(Form1), "smiles.bmp"); private Bitmap bmpSmilesAngry = new Bitmap(typeof(Form1), "smilesangry.bmp"); private Bitmap bmpGreenBtnUp = new Bitmap(typeof(Form1), "greenbtnup.bmp"); private Bitmap bmpGreenBtnDown = new Bitmap(typeof(Form1), "greenbtndown.bmp"); private Bitmap bmpX = new Bitmap(typeof(Form1), "x.bmp"); private Bitmap bmpXSmile = new Bitmap(typeof(Form1), "xsmile.bmp"); // To store the location of previous mouse left click in the form // so that we can use it to calculate the new form location during dragging private Point prevLeftClick; // To determine if it is the first time entry for every dragging of the form private bool isFirst = true; // Acts like a gate to do allow or deny private bool toBlock = true; public Form1() { // // Required for Windows Form Designer support // InitializeComponent(); // Make our bitmap region for the form BitmapRegion.CreateControlRegion(this, bmpFrmBack); // Make our bitmap regions for the buttons BitmapRegion.CreateControlRegion(button1, bmpBob); BitmapRegion.CreateControlRegion(button2, bmpSmiles); BitmapRegion.CreateControlRegion(button3, bmpGreenBtnUp); BitmapRegion.CreateControlRegion(button4, bmpX); } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.button1 = new System.Windows.Forms.Button(); this.button2 = new System.Windows.Forms.Button(); this.button3 = new System.Windows.Forms.Button(); this.button4 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // button1 // this.button1.Location = new System.Drawing.Point(104, 88); this.button1.Name = "button1"; this.button1.TabIndex = 0; this.button1.Text = "button1"; this.button1.Click += new System.EventHandler(this.button1_Click); this.button1.MouseEnter += new System.EventHandler(this.button1_MouseEnter); this.button1.MouseLeave += new System.EventHandler(this.button1_MouseLeave); // // button2 // this.button2.Location = new System.Drawing.Point(328, 80); this.button2.Name = "button2"; this.button2.TabIndex = 1; this.button2.Text = "button2"; this.button2.Click += new System.EventHandler(this.button2_Click); this.button2.MouseEnter += new System.EventHandler(this.button2_MouseEnter); this.button2.MouseLeave += new System.EventHandler(this.button2_MouseLeave); // // button3 // this.button3.Location = new System.Drawing.Point(184, 200); this.button3.Name = "button3"; this.button3.TabIndex = 2; this.button3.Text = "button3"; this.button3.Click += new System.EventHandler(this.button3_Click); this.button3.MouseEnter += new System.EventHandler(this.button3_MouseEnter); this.button3.MouseLeave += new System.EventHandler(this.button3_MouseLeave); // // button4 // this.button4.Location = new System.Drawing.Point(344, 232); this.button4.Name = "button4"; this.button4.TabIndex = 3; this.button4.Text = "button4"; this.button4.Click += new System.EventHandler(this.button4_Click); this.button4.MouseEnter += new System.EventHandler(this.button4_MouseEnter); this.button4.MouseLeave += new System.EventHandler(this.button4_MouseLeave); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClIEntSize = new System.Drawing.Size(432, 270); this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button4,
this.button3,
this.button2,
this.button1}); this.Name = "Form1"; this.Text = "Form1"; this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseMove); this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void button1_MouseEnter(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button1, bmpBobSay); } private void button1_MouseLeave(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button1, bmpBob); } private void button2_MouseEnter(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button2, bmpSmilesAngry); } private void button2_MouseLeave(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button2, bmpSmiles); } private void button3_MouseEnter(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button3, bmpGreenBtnDown); } private void button3_MouseLeave(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button3, bmpGreenBtnUp); } private void button4_MouseEnter(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button4, bmpXSmile); } private void button4_MouseLeave(object sender, System.EventArgs e) { // Make bitmap region for button BitmapRegion.CreateControlRegion(button4, bmpX); } private void button1_Click(object sender, System.EventArgs e) { MessageBox.Show("bob"); } private void button2_Click(object sender, System.EventArgs e) { MessageBox.Show("smiles"); } private void button3_Click(object sender, System.EventArgs e) { MessageBox.Show("green button"); } private void button4_Click(object sender, System.EventArgs e) { MessageBox.Show("Exiting now..."); Close(); } /* protected override void OnMouseDown(MouseEventArgs e) { if(e.Button == MouseButtons.Left) { const int HTCAPTION = 2; const int WM_NCLBUTTONDOWN = 161;
int ix = e.X & 0xffff; int iy = e.Y & 0xffff; long ll = ix | iy << 16; PostMessage(this.Handle, WM_NCLBUTTONDOWN, HTCAPTION, ll); } } */ private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e) { // Check if dragging of the form has occurred if(e.Button == MouseButtons.Left) { // If this is the first mouse move event for left click dragging of the form, // store the current point clicked so that we can use it to calculate the form's // new location in subsequent mouse move events due to left click dragging of the form if(isFirst == true) { // Store previous left click position prevLeftClick = new Point(e.X, e.Y); // Subsequent mouse move events will not be treated as first time, until the // left mouse click is released or other mouse click occur isFirst = false; } // On subsequent mouse move events with left mouse click down. (During dragging of form) else { // This flag here is to allow alternate processing for dragging the form because it // causes serious flicking when u allow every such events to change the form's location. // You can try commenting this out to see what i mean if(toBlock == false) this.Location = new Point(this.Location.X + e.X - prevLeftClick.X, this.Location.Y + e.Y - prevLeftClick.Y); // Store new previous left click position prevLeftClick = new Point(e.X, e.Y); // Allow or deny next mouse move dragging event toBlock = !toBlock; } } // This is a new mouse move event so reset flag else isFirst = true; } } }
