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WPF設(shè)置窗體可以使用鼠標(biāo)拖動(dòng)大小的方法

更新時(shí)間：2014年11月18日 10:08:54 投稿：shichen2014

這篇文章主要介紹了WPF設(shè)置窗體可以使用鼠標(biāo)拖動(dòng)大小的方法,涉及針對(duì)窗口的操作與設(shè)置技巧,具有很好的借鑒價(jià)值,需要的朋友可以參考下

本文實(shí)例講述了WPF設(shè)置窗體可以使用鼠標(biāo)拖動(dòng)大小的方法。分享給大家供大家參考。具體實(shí)現(xiàn)方法如下：

private void Window_Loaded(object sender, RoutedEventArgs e)
{
// 獲取窗體句柄
IntPtr hwnd = new System.Windows.Interop.WindowInteropHelper(this).Handle;

// 獲得窗體的樣式
int oldstyle = NativeMethods.GetWindowLong(hwnd, NativeMethods.GWL_STYLE);

// 更改窗體的樣式為無(wú)邊框窗體
NativeMethods.SetWindowLong(hwnd, NativeMethods.GWL_STYLE, oldstyle & ~NativeMethods.WS_CAPTION);

    // SetWindowLong(hwnd, GWL_EXSTYLE, oldstyle & ~WS_EX_LAYERED);
    // 1 | 2 << 8 | 3 << 16 r=1,g=2,b=3 詳見(jiàn)winuse.h文件
    // 設(shè)置窗體為透明窗體
    NativeMethods.SetLayeredWindowAttributes(hwnd, 1 | 2 << 8 | 3 << 16, 0, NativeMethods.LWA_ALPHA);

// 創(chuàng)建圓角窗體 12 這個(gè)值可以根據(jù)自身項(xiàng)目進(jìn)行設(shè)置
NativeMethods.SetWindowRgn(hwnd, NativeMethods.CreateRoundRectRgn(0, 0, Convert.ToInt32(this.ActualWidth), Convert.ToInt32(this.ActualHeight), 12, 12), true);
}

NativeMethods.cs的代碼：

復(fù)制代碼代碼如下:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace SEsoft

{

    public class NativeMethods

    {

        /// <summary> 

        /// 帶有外邊框和標(biāo)題的windows的樣式 

        /// </summary> 

        public const int WS_CAPTION = 0X00C0000;

        /// <summary> 

        /// window 擴(kuò)展樣式 分層顯示 

        /// </summary> 

        public const int WS_EX_LAYERED = 0x00080000;

        /// <summary> 

        /// 帶有alpha的樣式 

        /// </summary> 

        public const int LWA_ALPHA = 0x00000002;

        /// <summary> 

        /// 顏色設(shè)置 

        /// </summary> 

        public const int LWA_COLORKEY = 0x00000001;

        /// <summary> 

        /// window的基本樣式 

        /// </summary> 

        public const int GWL_STYLE = -16;

        /// <summary> 

        /// window的擴(kuò)展樣式 

        /// </summary> 

        public const int GWL_EXSTYLE = -20;

        /// <summary> 

        /// 設(shè)置窗體的樣式 

        /// </summary> 

        /// <param name="handle">操作窗體的句柄</param> 

        /// <param name="oldStyle">進(jìn)行設(shè)置窗體的樣式類(lèi)型.</param> 

        /// <param name="newStyle">新樣式</param> 

        [System.Runtime.InteropServices.DllImport("User32.dll")]

        public static extern void SetWindowLong(IntPtr handle, int oldStyle, int newStyle);

        /// <summary> 

        /// 獲取窗體指定的樣式. 

        /// </summary> 

        /// <param name="handle">操作窗體的句柄</param> 

        /// <param name="style">要進(jìn)行返回的樣式</param> 

        /// <returns>當(dāng)前window的樣式</returns> 

        [System.Runtime.InteropServices.DllImport("User32.dll")]

        public static extern int GetWindowLong(IntPtr handle, int style);

        /// <summary> 

        /// 設(shè)置窗體的工作區(qū)域. 

        /// </summary> 

        /// <param name="handle">操作窗體的句柄.</param> 

        /// <param name="handleRegion">操作窗體區(qū)域的句柄.</param> 

        /// <param name="regraw">if set to <c>true</c> [regraw].</param> 

        /// <returns>返回值</returns> 

        [System.Runtime.InteropServices.DllImport("User32.dll")]

        public static extern int SetWindowRgn(IntPtr handle, IntPtr handleRegion, bool regraw);

        /// <summary> 

        /// 創(chuàng)建帶有圓角的區(qū)域. 

        /// </summary> 

        /// <param name="x1">左上角坐標(biāo)的X值.</param> 

        /// <param name="y1">左上角坐標(biāo)的Y值.</param> 

        /// <param name="x2">右下角坐標(biāo)的X值.</param> 

        /// <param name="y2">右下角坐標(biāo)的Y值.</param> 

        /// <param name="width">圓角橢圓的width.</param> 

        /// <param name="height">圓角橢圓的height.</param> 

        /// <returns>hRgn的句柄</returns> 

        [System.Runtime.InteropServices.DllImport("gdi32.dll")]

        public static extern IntPtr CreateRoundRectRgn(int x1, int y1, int x2, int y2, int width, int height);

        /// <summary> 

        /// Sets the layered window attributes. 

        /// </summary> 

        /// <param name="handle">要進(jìn)行操作的窗口句柄</param> 

        /// <param name="colorKey">RGB的值</param> 

        /// <param name="alpha">Alpha的值，透明度</param> 

        /// <param name="flags">附帶參數(shù)</param> 

        /// <returns>true or false</returns> 

        [System.Runtime.InteropServices.DllImport("User32.dll")]

        public static extern bool SetLayeredWindowAttributes(IntPtr handle, uint colorKey, byte alpha, int flags);

    }

}