public static Cursor InternalCreateCursor(System.Drawing.Bitmap bmp,
int xHotSpot, int yHotSpot)
{
//IconInfo tmp = new IconInfo();
//GetIconInfo(bmp.GetHicon(), ref tmp);
//tmp.xHotspot = xHotSpot;
//tmp.yHotspot = yHotSpot;
//tmp.fIcon = false;
//IntPtr ptr = CreateIconIndirect(ref tmp);
//SafeFileHandle handle = new SafeFileHandle(ptr, true);
//return CursorInteropHelper.Create(handle);
var iconInfo = new IconInfo();
GetIconInfo(bmp.GetHicon(), ref iconInfo);
iconInfo.xHotspot = xHotSpot;
iconInfo.yHotspot = yHotSpot;
iconInfo.fIcon = false;
SafeIconHandle cursorHandle = CreateIconIndirect(ref iconInfo);
return(CursorInteropHelper.Create(cursorHandle));
}
private static Cursor createCursor(Bitmap bmp, int xHotSpot, int yHotSpot)
{
User32.IconInfo iconInfo = new User32.IconInfo();
User32.GetIconInfo(bmp.GetHicon(), ref iconInfo);
iconInfo.xHotspot = xHotSpot;
iconInfo.yHotspot = yHotSpot;
iconInfo.fIcon = false;
SafeIconHandle cursorHandle = User32.CreateIconIndirect(ref iconInfo);
return(CursorInteropHelper.Create(cursorHandle));
}
/// <summary>
/// Create a cursor from the supplied bitmap & hotspot coordinates
/// </summary>
/// <param name="bitmap">Bitmap to create an icon from</param>
/// <param name="hotspotX">Hotspot X coordinate</param>
/// <param name="hotspotY">Hotspot Y coordinate</param>
/// <returns>Cursor</returns>
private static Cursor CreateCursor(Bitmap bitmap, int hotspotX, int hotspotY)
{
using (var iconHandle = new SafeIconHandle(bitmap.GetHicon()))
{
User32Api.GetIconInfo(iconHandle, out var iconInfo);
iconInfo.Hotspot = new NativePoint(hotspotX, hotspotY);
iconInfo.IsIcon = false;
var icon = User32Api.CreateIconIndirect(ref iconInfo);
return(new Cursor(icon));
}
}
private static Cursor InternalCreateCursor(Bitmap bitmap, int xHotSpot, int yHotSpot)
{
NativeMethods.IconInfo icon = default(NativeMethods.IconInfo);
NativeMethods.GetIconInfo(bitmap.GetHicon(), ref icon);
icon.xHotspot = xHotSpot;
icon.yHotspot = yHotSpot;
icon.fIcon = false;
SafeIconHandle cursorHandle = NativeMethods.CreateIconIndirect(ref icon);
return(CursorInteropHelper.Create(cursorHandle));
}
/// <summary>
/// Create a cursor from the supplied bitmap & hotspot coordinates
/// </summary>
/// <param name="bitmap">Bitmap to create an icon from</param>
/// <param name="hotspotX">Hotspot X coordinate</param>
/// <param name="hotspotY">Hotspot Y coordinate</param>
/// <returns>Cursor</returns>
private static Cursor CreateCursor(Bitmap bitmap, int hotspotX, int hotspotY)
{
using (SafeIconHandle iconHandle = new SafeIconHandle(bitmap.GetHicon())) {
IconInfo iconInfo;
User32.GetIconInfo(iconHandle, out iconInfo);
iconInfo.xHotspot = hotspotX;
iconInfo.yHotspot = hotspotY;
iconInfo.fIcon = false;
var icon = User32.CreateIconIndirect(ref iconInfo);
return(new Cursor(icon));
}
}
private static KeyValuePair <SafeIconHandle, Icon> ImageSourceToIcon(ImageSource source)
{
var image = source as BitmapSource;
if (image == null)
{
throw new InvalidOperationException();
}
IntPtr hIcon = ImageHelper.BitmapFromBitmapSource(image).GetHicon();
var iconHandle = new SafeIconHandle(hIcon);
return(new KeyValuePair <SafeIconHandle, Icon>(iconHandle, Icon.FromHandle(hIcon)));
}
private static Cursor InternalCreateCursor(System.Drawing.Bitmap bmp)
{
NativeMethods.IconInfo iconInfo = new();
NativeMethods.GetIconInfo(bmp.GetHicon(), ref iconInfo);
iconInfo.xHotspot = 0;
iconInfo.yHotspot = 0;
iconInfo.fIcon = false;
SafeIconHandle cursorHandle = NativeMethods.CreateIconIndirect(ref iconInfo);
return(CursorInteropHelper.Create(cursorHandle));
}
//保护：
/// <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 NativeMethods.IconInfo();
NativeMethods.GetIconInfo(bitmap.GetHicon(), ref iconInfo);
iconInfo.xHotspot = xHotSpot; //焦点x轴坐标
iconInfo.yHotspot = yHotSpot; //焦点y轴坐标
iconInfo.fIcon = false; //设置鼠标
SafeIconHandle cursorHandle = NativeMethods.CreateIconIndirect(ref iconInfo);
return(CursorInteropHelper.Create(cursorHandle));
}
/// <summary>
/// 透過Bitmap建立圖形游標
/// </summary>
/// <param name="bitmap">要當成游標的Bitmap</param>
/// <param name="xHotSpot">游標頂點的X軸位移</param>
/// <param name="yHotSpot">游標頂點的Y軸位移</param>
/// <returns>自訂的游標物件</returns>
private static Cursor InternalCreateCursor(System.Drawing.Bitmap bitmap, int xHotSpot, int yHotSpot)
{
var iconInfo = new NativeMethods.IconInfo();
NativeMethods.GetIconInfo(bitmap.GetHicon(), ref iconInfo);
iconInfo.xHotspot = xHotSpot;
iconInfo.yHotspot = yHotSpot;
iconInfo.fIcon = false;
SafeIconHandle cursorHandle = NativeMethods.CreateIconIndirect(ref iconInfo);
return(CursorInteropHelper.Create(cursorHandle));
}
/// <summary>
/// This method will capture the current Cursor by using User32 Code
/// </summary>
/// <returns>A Capture Object with the Mouse Cursor information in it.</returns>
public static ICapture CaptureCursor(ICapture capture)
{
LOG.Debug("Capturing the mouse cursor.");
if (capture == null)
{
capture = new Capture();
}
int x, y;
CursorInfo cursorInfo = new CursorInfo();
IconInfo iconInfo;
cursorInfo.cbSize = Marshal.SizeOf(cursorInfo);
if (User32.GetCursorInfo(out cursorInfo))
{
if (cursorInfo.flags == User32.CURSOR_SHOWING)
{
using (SafeIconHandle safeIcon = User32.CopyIcon(cursorInfo.hCursor))
{
if (User32.GetIconInfo(safeIcon, out iconInfo))
{
Point cursorLocation = GetCursorLocation();
// Allign cursor location to Bitmap coordinates (instead of Screen coordinates)
x = cursorLocation.X - iconInfo.xHotspot - capture.ScreenBounds.X;
y = cursorLocation.Y - iconInfo.yHotspot - capture.ScreenBounds.Y;
// Set the location
capture.CursorLocation = new Point(x, y);
using (Icon icon = Icon.FromHandle(safeIcon.DangerousGetHandle()))
{
capture.Cursor = icon;
}
if (iconInfo.hbmMask != IntPtr.Zero)
{
DeleteObject(iconInfo.hbmMask);
}
if (iconInfo.hbmColor != IntPtr.Zero)
{
DeleteObject(iconInfo.hbmColor);
}
}
}
}
}
return(capture);
}
internal static extern int ExtractIconEx(
string szExeFileName, int nIconIndex,
out SafeIconHandle phiconLarge, out SafeIconHandle phiconSmall, int nIcons);
public static extern bool GetIconInfo(SafeIconHandle iconHandle, out IconInfo iconInfo);
