private static void ResizeCursor(System.Windows.Forms.Cursor cursor,
int newSize, CursorShift cursorShift)
{
Bitmap cursorImage = GetSystemCursorBitmap(cursor);
cursorImage = ResizeCursorBitmap(cursorImage, new Size(newSize, newSize), cursorShift);
SetCursor(cursorImage, getResourceId(cursor));
}
private static Bitmap ResizeCursorBitmap(Bitmap bitmap, Size size, CursorShift cursorShift)
{
if (size.Width > 32)
{
//shifting must occur
Bitmap intermediateBitmap = new Bitmap(64, 64);
Graphics intermediateGraphics = Graphics.FromImage(intermediateBitmap);
if (cursorShift == CursorShift.LowerRight)
{
//place the mouse cursor in the lower right hand quadrant of the bitmap
intermediateGraphics.DrawImage(bitmap,
intermediateBitmap.Width / 2, intermediateBitmap.Height / 2);
}
else if (cursorShift == CursorShift.Centered)
{
intermediateGraphics.DrawImage(bitmap,
intermediateBitmap.Width / 2 - bitmap.Width / 2,
intermediateBitmap.Height / 2 - bitmap.Height / 2);
}
//now we have a shifted bitmap; use it to draw the resized cursor
//Bitmap finalBitmap = new Bitmap(intermediateBitmap, size); //normal quality
Bitmap finalBitmap = new Bitmap(size.Width, size.Height);
Graphics finalGraphics = Graphics.FromImage(finalBitmap);
finalGraphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
finalGraphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
finalGraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
finalGraphics.DrawImage(intermediateBitmap, 0, 0, finalBitmap.Width, finalBitmap.Height);
return(finalBitmap);
}
else
{
Bitmap newBitmap = new Bitmap(bitmap, size);
return(newBitmap);
}
}
