更改winforms/.net中的光标热点

你当然可以。以下是我的实用程序功能,请根据需要进行编辑:)

    public struct IconInfo
    {
        public bool fIcon;
        public int xHotspot;
        public int yHotspot;
        public IntPtr hbmMask;
        public IntPtr hbmColor;
    }
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo);
    [DllImport("user32.dll")]
    public static extern IntPtr CreateIconIndirect(ref IconInfo icon);

    /// <summary>
    /// Create a cursor from a bitmap without resizing and with the specified
    /// hot spot
    /// </summary>
    public static Cursor CreateCursorNoResize(Bitmap bmp, int xHotSpot, int yHotSpot)
    {
        IntPtr ptr = bmp.GetHicon();
        IconInfo tmp = new IconInfo();
        GetIconInfo(ptr, ref tmp);
        tmp.xHotspot = xHotSpot;
        tmp.yHotspot = yHotSpot;
        tmp.fIcon = false;
        ptr = CreateIconIndirect(ref tmp);
        return new Cursor(ptr);
    }


    /// <summary>
    /// Create a 32x32 cursor from a bitmap, with the hot spot in the middle
    /// </summary>
    public static Cursor CreateCursor(Bitmap bmp)
    {
        int xHotSpot = 16;
        int yHotSpot = 16;

        IntPtr ptr = ((Bitmap)ResizeImage(bmp, 32, 32)).GetHicon();
        IconInfo tmp = new IconInfo();
        GetIconInfo(ptr, ref tmp);
        tmp.xHotspot = xHotSpot;
        tmp.yHotspot = yHotSpot;
        tmp.fIcon = false;
        ptr = CreateIconIndirect(ref tmp);
        return new Cursor(ptr);
    }

由于这是一个.NET问题,而不是一个C问题,下面是对Nick部分代码的vb.net转换(以节省其他人的麻烦)。

Module IconUtility
Structure IconInfo
    Public fIcon As Boolean
    Public xHotspot As Integer
    Public yHotspot As Integer
    Public hbmMask As IntPtr
    Public hbmColor As IntPtr
End Structure

Private Declare Function GetIconInfo Lib "user32.dll" (hIcon As IntPtr, ByRef pIconInfo As IconInfo) As Boolean
Private Declare Function CreateIconIndirect Lib "user32.dll" (ByRef icon As IconInfo) As IntPtr

' Create a cursor from a bitmap without resizing and with the specified hot spot
Public Function CreateCursorNoResize(bmp As System.Drawing.Bitmap, xHotSpot As Integer, yHotSpot As Integer) As Cursor
    Dim ptr As IntPtr = bmp.GetHicon
    Dim tmp As IconInfo = New IconInfo()
    GetIconInfo(ptr, tmp)
    tmp.xHotspot = xHotSpot
    tmp.yHotspot = yHotSpot
    tmp.fIcon = False
    ptr = CreateIconIndirect(tmp)
    Return New Cursor(ptr)
End Function
End Module

看一看 this post on MSDN . 似乎有两种可能的解决方案(使用p/invoke),您应该能够复制粘贴并使用它们。