/// <summary>
/// Create cursor from canvas.
/// </summary>
/// <param name="canvas">Input canvas.</param>
/// <param name="hotSpotPoint">Hotspot cursor point.</param>
/// <returns>Created cursor.</returns>
private System.Windows.Forms.Cursor _CreateCursorFromCanvas(Canvas canvas, System.Drawing.Point hotSpotPoint)
{
// Render canvas to bitmap.
RenderTargetBitmap targetBitmap = new RenderTargetBitmap((int)canvas.ActualWidth, (int)canvas.ActualHeight, BASIC_DPI, BASIC_DPI, PixelFormats.Pbgra32);
targetBitmap.Render(canvas);
// Create PNG encoder.
PngBitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(targetBitmap));
// Render target bitmap to System.Drawing bitmap.
System.Drawing.Bitmap bmp;
using (MemoryStream stream = new MemoryStream())
{
encoder.Save(stream);
bmp = new System.Drawing.Bitmap(stream);
}
// Create cursor.
WinAPIHelpers.IconInfo iconInfo = new WinAPIHelpers.IconInfo();
IntPtr hIcon = bmp.GetHicon();
WinAPIHelpers.GetIconInfo(hIcon, ref iconInfo);
iconInfo.xHotspot = hotSpotPoint.X;
iconInfo.yHotspot = hotSpotPoint.Y;
iconInfo.fIcon = false;
IntPtr cursorHandle = WinAPIHelpers.CreateIconIndirect(ref iconInfo);
// Destroy icon obtained from GetHicon method.
if (hIcon != IntPtr.Zero)
{
WinAPIHelpers.DestroyIcon(hIcon);
}
// Free resources.
if (iconInfo.hbmColor != IntPtr.Zero)
{
WinAPIHelpers.DeleteObject(iconInfo.hbmColor);
}
if (iconInfo.hbmMask != IntPtr.Zero)
{
WinAPIHelpers.DeleteObject(iconInfo.hbmMask);
}
System.Windows.Forms.Cursor cursor = null;
if (cursorHandle != null)
{
cursor = new System.Windows.Forms.Cursor(cursorHandle);
}
return(cursor);
}
/// <summary>
/// Creates image from input cursor for adding to WPF canvas.
/// </summary>
/// <param name="cursor">Cursor to convert.</param>
/// <param name="hotSpot">Output cursor hotspot point.</param>
/// <returns>Create cursor image.</returns>
private Image _CreateImageFromCursor(System.Windows.Forms.Cursor cursor, out System.Drawing.Point hotSpot)
{
// Get info about cursor.
WinAPIHelpers.IconInfo iconInfo = new WinAPIHelpers.IconInfo();
if (WinAPIHelpers.GetIconInfo(cursor.Handle, ref iconInfo))
{
// Set hotspot point.
hotSpot = new System.Drawing.Point {
X = iconInfo.xHotspot, Y = iconInfo.yHotspot
};
// Free bitmap objects.
if (iconInfo.hbmColor != IntPtr.Zero)
{
WinAPIHelpers.DeleteObject(iconInfo.hbmColor);
}
if (iconInfo.hbmMask != IntPtr.Zero)
{
WinAPIHelpers.DeleteObject(iconInfo.hbmMask);
}
}
else
{
// We didn't get info about cursor for some reason - set hot spot to (0; 0).
hotSpot = new System.Drawing.Point {
X = 0, Y = 0
};
}
// Create bitmap source from cursor (cursor handle is icon handle as well).
BitmapSource source = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(cursor.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
// Create image control.
Image image = new Image();
image.Source = source;
return(image);
}
/// <summary>
/// Creates image from input cursor for adding to WPF canvas.
/// </summary>
/// <param name="cursor">Cursor to convert.</param>
/// <param name="hotSpot">Output cursor hotspot point.</param>
/// <returns>Create cursor image.</returns>
private Image _CreateImageFromCursor(System.Windows.Forms.Cursor cursor, out System.Drawing.Point hotSpot)
{
// Get info about cursor.
WinAPIHelpers.IconInfo iconInfo = new WinAPIHelpers.IconInfo();
if (WinAPIHelpers.GetIconInfo(cursor.Handle, ref iconInfo))
{
// Set hotspot point.
hotSpot = new System.Drawing.Point { X = iconInfo.xHotspot, Y = iconInfo.yHotspot };
// Free bitmap objects.
if (iconInfo.hbmColor != IntPtr.Zero)
WinAPIHelpers.DeleteObject(iconInfo.hbmColor);
if (iconInfo.hbmMask != IntPtr.Zero)
WinAPIHelpers.DeleteObject(iconInfo.hbmMask);
}
else
{
// We didn't get info about cursor for some reason - set hot spot to (0; 0).
hotSpot = new System.Drawing.Point { X = 0, Y = 0 };
}
// Create bitmap source from cursor (cursor handle is icon handle as well).
BitmapSource source = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(cursor.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
// Create image control.
Image image = new Image();
image.Source = source;
return image;
}
/// <summary>
/// Create cursor from canvas.
/// </summary>
/// <param name="canvas">Input canvas.</param>
/// <param name="hotSpotPoint">Hotspot cursor point.</param>
/// <returns>Created cursor.</returns>
private System.Windows.Forms.Cursor _CreateCursorFromCanvas(Canvas canvas, System.Drawing.Point hotSpotPoint)
{
// Render canvas to bitmap.
RenderTargetBitmap targetBitmap = new RenderTargetBitmap((int)canvas.ActualWidth, (int)canvas.ActualHeight, BASIC_DPI, BASIC_DPI, PixelFormats.Pbgra32);
targetBitmap.Render(canvas);
// Create PNG encoder.
PngBitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(targetBitmap));
// Render target bitmap to System.Drawing bitmap.
System.Drawing.Bitmap bmp;
using (MemoryStream stream = new MemoryStream())
{
encoder.Save(stream);
bmp = new System.Drawing.Bitmap(stream);
}
// Create cursor.
WinAPIHelpers.IconInfo iconInfo = new WinAPIHelpers.IconInfo();
IntPtr hIcon = bmp.GetHicon();
WinAPIHelpers.GetIconInfo(hIcon, ref iconInfo);
iconInfo.xHotspot = hotSpotPoint.X;
iconInfo.yHotspot = hotSpotPoint.Y;
iconInfo.fIcon = false;
IntPtr cursorHandle = WinAPIHelpers.CreateIconIndirect(ref iconInfo);
// Destroy icon obtained from GetHicon method.
if (hIcon != IntPtr.Zero)
WinAPIHelpers.DestroyIcon(hIcon);
// Free resources.
if (iconInfo.hbmColor != IntPtr.Zero)
WinAPIHelpers.DeleteObject(iconInfo.hbmColor);
if (iconInfo.hbmMask != IntPtr.Zero)
WinAPIHelpers.DeleteObject(iconInfo.hbmMask);
System.Windows.Forms.Cursor cursor = null;
if (cursorHandle != null)
cursor = new System.Windows.Forms.Cursor(cursorHandle);
return cursor;
}
