- 简介
- 调用方式
- 源码
简介
上本身自带20多种鼠标样式,通过Cursors类进行获取,例如:
项目里边识别.ani和.cur文件,可直接通过相对路径或绝对路径来获取文件 例如:
//相对路径
StreamResourceInfo sri = (new Uri(@"Resources/", ));
Cursor customCursor = new Cursor();
= customCursor;
//绝对路径
Cursor custoCursor = new Cursor(((), ""));
= custoCursor;
3.自定义图片来做鼠标样式,也适用于.ani和cur文件 调用方式如下:
//Environment(.Net提供的类库,客户区系统一些特殊文件夹)
string path= ((), "")
= (path, 500, 500);
源码如下(直接无脑复制粘贴,改一下命名空间即可):
using System;
using ;
using ;
using Microsoft.;
using ;
using ;
using ;
using ;
using ;
namespace WPFDemo
{
public class MouseManager
{
/// <summary>
/// 根据 BitmapImage 创建鼠标图标
/// </summary>
/// <param name="bs">鼠标图像</param>
/// <param name="xHotSpot">焦点在图片中的 X轴 坐标(相对于左上角)</param>
/// <param name="yHotSpot">焦点在图片中的 Y轴 坐标(相对于左上角)</param>
/// <returns>错误则返回null</returns>
public static Cursor CreateCursor(BitmapSource bs, uint xHotSpot = 0, uint yHotSpot = 0)
{
Cursor ret = null;
Bitmap bm = BitmapSource2Bitmap(bs);
if (bm != null)
{
try
{
ret = InternalCreateCursor(bm, xHotSpot, yHotSpot);
}
catch (Exception)
{
ret = null;
}
}
return ret;
}
/// <summary>
/// 根据 Bitmap 创建自定义鼠标
/// </summary>
/// <param name="bm">鼠标图像</param>
/// <param name="xHotSpot">焦点在图片中的 X轴 坐标(相对于左上角)</param>
/// <param name="yHotSpot">焦点在图片中的 Y轴 坐标(相对于左上角)</param>
/// <returns>错误则返回null</returns>
public static Cursor CreateCursor(Bitmap bm, uint xHotSpot = 0, uint yHotSpot = 0)
{
Cursor ret = null;
if (bm == null)
{
return ret;
}
try
{
ret = InternalCreateCursor(bm, xHotSpot, yHotSpot);
}
catch (Exception)
{
ret = null;
}
return ret;
}
/// <summary>
/// 根据 本地文件路径 创建鼠标图标
/// </summary>
/// <param name="filePath">鼠标图像全路径</param>
/// <param name="xHotSpot">焦点在图片中的 X轴 坐标(相对于左上角)</param>
/// <param name="yHotSpot">焦点在图片中的 Y轴 坐标(相对于左上角)</param>
/// <returns>错误则返回null</returns>
public static Cursor CreateCursor(String filePath, uint xHotSpot = 0, uint yHotSpot = 0)
{
Cursor ret = null;
if ((filePath) || (filePath) || !(filePath))
{
return ret;
}
//首先尝试通过默认方法创建
if ((".ani") || (".cur"))
{
try
{
ret = new Cursor(filePath);
}
catch (Exception)
{
ret = null;
}
}
//如果文件不是正确的.ani或.cur文件,则尝试通过BitMap创建
if (ret == null)
{
Bitmap bmp = null;
try
{
bmp = (filePath) as Bitmap;
if (bmp != null)
{
ret = CreateCursor(bmp, xHotSpot, yHotSpot);
}
}
catch (Exception)
{
ret = null;
}
}
return ret;
}
//BitmapSource 转 Bitmap 方法
/// <summary>
/// BitmapSource 转 Bitmap
/// </summary>
/// <param name="bi"></param>
/// <returns>错误则返回null</returns>
public static Bitmap BitmapSource2Bitmap(BitmapSource bi)
{
Bitmap ret = null;
MemoryStream stream = null;
if (bi == null)
{
return ret;
}
try
{
stream = new MemoryStream();
BmpBitmapEncoder enc = new BmpBitmapEncoder();
((bi));
(stream);
ret = new Bitmap(stream);
}
catch (Exception)
{
ret = null;
}
finally
{
();
}
return ret;
}
/// <summary>
/// 创建鼠标(本方法不允许public,避免内存泄漏)
/// </summary>
/// <param name="bitmap"></param>
/// <param name="xHotSpot"></param>
/// <param name="yHotSpot"></param>
/// <returns></returns>
protected static Cursor InternalCreateCursor(Bitmap bitmap, uint xHotSpot, uint yHotSpot)
{
var iconInfo = new ();
((), ref iconInfo);
= xHotSpot;//焦点x轴坐标
= yHotSpot;//焦点y轴坐标
= false;//设置鼠标
SafeIconHandle cursorHandle = (ref iconInfo);
return (cursorHandle);
}
protected static class NativeMethods
{
public struct IconInfo
{
public bool fIcon;
public uint xHotspot;
public uint yHotspot;
public IntPtr hbmMask;
public IntPtr hbmColor;
}
[DllImport("")]
public static extern SafeIconHandle CreateIconIndirect(ref IconInfo icon);
[DllImport("")]
public static extern bool DestroyIcon(IntPtr hIcon);
[DllImport("")]
[return: MarshalAs()]
public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo);
}
[SecurityPermission(, UnmanagedCode = true)]
protected class SafeIconHandle : SafeHandleZeroOrMinusOneIsInvalid
{
public SafeIconHandle()
: base(true)
{
}
/// <summary>
/// 释放资源(系统清理缓存时调用该方法)
/// </summary>
/// <returns></returns>
protected override bool ReleaseHandle()
{
return (handle);
}
}
}
}