public static IconHandleInfo GetIconInfo(IconHandle iconHandle)
{
if(iconHandle == null)
return null;
ICONINFO iconInfo;
if(!PInvoke.GetIconInfo(iconHandle.Handle, out iconInfo))
return null;
return new IconHandleInfo(iconInfo);
}
private void SetOverlayIconCore(IconHandle iconHandle, string accessibilityText)
{
if (!this.currentOverlayIcon.IsInvalid && this.currentOverlayIcon != iconHandle)
{
this.currentOverlayIcon.Dispose();
}
this.currentOverlayIcon = iconHandle;
this.currentOverlayIconAccessibilityText = accessibilityText;
this.TaskbarList.SetOverlayIcon(
this.MainWindowHandle,
this.currentOverlayIcon,
this.currentOverlayIconAccessibilityText);
}
public static IconHandleInfo GetIconInfo(IconHandle iconHandle)
{
if (iconHandle == null)
{
return(null);
}
ICONINFO iconInfo;
if (!PInvoke.GetIconInfo(iconHandle.Handle, out iconInfo))
{
return(null);
}
return(new IconHandleInfo(iconInfo));
}
internal static IconHandle CreateIconCursor(byte[] colorArray, int width, int height, int xHotspot, int yHotspot, bool isIcon)
{
BitmapHandle colorBitmap = null;
BitmapHandle maskBitmap = null;
try
{
var bi = new InteropValues.BITMAPINFO(width, -height, 32)
{
biCompression = InteropValues.BI_RGB
};
var bits = IntPtr.Zero;
colorBitmap = InteropMethods.CreateDIBSection(new HandleRef(null, IntPtr.Zero), ref bi, InteropValues.DIB_RGB_COLORS, ref bits, null, 0);
if (colorBitmap.IsInvalid || bits == IntPtr.Zero)
{
return(IconHandle.GetInvalidIcon());
}
Marshal.Copy(colorArray, 0, bits, colorArray.Length);
var maskArray = GenerateMaskArray(width, height, colorArray);
maskBitmap = InteropMethods.CreateBitmap(width, height, 1, 1, maskArray);
if (maskBitmap.IsInvalid)
{
return(IconHandle.GetInvalidIcon());
}
var iconInfo = new InteropValues.ICONINFO
{
fIcon = isIcon,
xHotspot = xHotspot,
yHotspot = yHotspot,
hbmMask = maskBitmap,
hbmColor = colorBitmap
};
return(InteropMethods.CreateIconIndirect(iconInfo));
}
finally
{
colorBitmap?.Dispose();
maskBitmap?.Dispose();
}
}
/// <summary>
/// vsqxのxmlドキュメントに埋め込まれた音源情報のテーブルを取得する
/// </summary>
/// <param name="xml">xmlドキュメント</param>
/// <returns>バンクセレクト、プログラムチェンジをキーとしたIconHandleのマップ</returns>
private static Dictionary <int, Dictionary <int, IconHandle> > getVoiceTable(XmlDocument xml)
{
var result = new Dictionary <int, Dictionary <int, IconHandle> >();
foreach (XmlNode vVoice in xml.DocumentElement.GetElementsByTagName("vVoice"))
{
int bankSelect = int.Parse(vVoice["vBS"].InnerText);
int programChange = int.Parse(vVoice["vPC"].InnerText);
var name = vVoice["vVoiceName"].InnerText;
var iconHandle = new IconHandle();
iconHandle.IDS = name;
iconHandle.Language = bankSelect;
iconHandle.Program = programChange;
iconHandle.IconID =
"$0701" + bankSelect.ToString("X2") + programChange.ToString("X2");
if (false == result.ContainsKey(bankSelect))
{
result.Add(bankSelect, new Dictionary <int, IconHandle>());
}
result[bankSelect].Add(programChange, iconHandle);
}
return(result);
}
public static void GetIconHandlesFromImageSource(ImageSource image, out IconHandle largeIconHandle, out IconHandle smallIconHandle)
{
EnsureSystemMetrics();
largeIconHandle = CreateIconHandleFromImageSource(image, IconSize);
smallIconHandle = CreateIconHandleFromImageSource(image, SmallIconSize);
}
public void Update()
{
CURSORINFO cursorInfo;
cursorInfo.cbSize = cursorInfoSize;
if (!PInvoke.GetCursorInfo(out cursorInfo))
{
return;
}
if (cursorInfo.flags != PInvoke.CURSOR_SHOWING)// same cursor as previous
{
return;
}
using (IconHandle hicon = IconHandle.GetCursorIcon(cursorInfo))
using (IconHandleInfo iconInfo = IconHandleInfo.GetIconInfo(hicon))
{
if (iconInfo == null)
{
return;
}
var tmpx = _Position.X;
var tmpy = _Position.Y;
_Position.X = cursorInfo.ptScreenPos.x - iconInfo.Hotspot.X;
_Position.Y = cursorInfo.ptScreenPos.y - iconInfo.Hotspot.Y;
if (LastCursor == cursorInfo.hCursor)
{
if (MousePositionChangedEvent != null && tmpx != _Position.X && tmpy != _Position.Y)
{
MousePositionChangedEvent(_Position);
}
return; //no more work here, the cursor is the same
}
LastCursor = cursorInfo.hCursor; //just a copy
Bitmap resultBitmap = null;
using (Bitmap bitmapMask = Bitmap.FromHbitmap(iconInfo.MaskBitmap.Handle))
{
// Here we have to determine if the current cursor is monochrome in order
// to do a proper processing. If we just extracted the cursor icon from
// the icon handle, monochrome cursors would appear garbled.
if (bitmapMask.Height == bitmapMask.Width * 2)
{
// Yes, this is a monochrome cursor. We will have to manually copy
// the bitmap and the bitmak layers of the cursor into the bitmap.
resultBitmap = new Bitmap(bitmapMask.Width, bitmapMask.Width);
PInvoke.SelectObject(mask.Handle, iconInfo.MaskBitmap.Handle);
using (Graphics resultGraphics = Graphics.FromImage(resultBitmap))
{
IntPtr resultHandle = resultGraphics.GetHdc();
// These two operation will result in a black cursor over a white background. Later
// in the code, a call to MakeTransparent() will get rid of the white background.
PInvoke.BitBlt(resultHandle, 0, 0, 32, 32, mask.Handle, 0, 32, CopyPixelOperation.SourceCopy);
PInvoke.BitBlt(resultHandle, 0, 0, 32, 32, mask.Handle, 0, 0, CopyPixelOperation.SourceInvert);
resultGraphics.ReleaseHdc(resultHandle);
}
// Remove the white background from the BitBlt calls,
// resulting in a black cursor over a transparent background.
resultBitmap.MakeTransparent(Color.White);
}
else
{
// This isn't a monochrome cursor.
using (Icon icon = Icon.FromHandle(hicon.Handle))
resultBitmap = icon.ToBitmap();
}
}
_Cursor = resultBitmap;
if (MouseImageChangedEvent != null)
{
using (var ms = new MemoryStream())
{
_Cursor.Save(ms, ImageFormat.Png);//png to preserve the transparency
MouseImageChangedEvent(_Position, ms.ToArray());
}
}
}
}
/// <summary>
/// Gets the current cursor bitmap, supporting
/// transparency and handling monochrome cursors.
/// </summary>
///
/// <returns>A <see cref="Bitmap"/> containing the cursor's bitmap image.</returns>
///
public Bitmap GetBitmap()
{
// Based on answer from Tarsier in SO question "C# - Capturing the Mouse cursor image"
// http://stackoverflow.com/questions/918990/c-sharp-capturing-the-mouse-cursor-image
CursorInfo cursorInfo;
cursorInfo.cbSize = cursorInfoSize;
if (!NativeMethods.GetCursorInfo(out cursorInfo))
{
return(null);
}
if (cursorInfo.flags != CursorState.CURSOR_SHOWING)
{
return(null);
}
using (IconHandle hicon = SafeNativeMethods.GetCursorIcon(cursorInfo))
using (IconHandleInfo iconInfo = SafeNativeMethods.GetIconInfo(hicon))
{
if (iconInfo == null)
{
return(null);
}
position.X = cursorInfo.ptScreenPos.X - iconInfo.Hotspot.X;
position.Y = cursorInfo.ptScreenPos.Y - iconInfo.Hotspot.Y;
if (!CaptureRegion.Contains(position))
{
return(null);
}
position.X -= CaptureRegion.X;
position.Y -= CaptureRegion.Y;
// Note: an alternative way would be to just return
//
// Icon icon = Icon.FromHandle(hicon);
//
// However, this seems to fail for monochrome cursors such as
// the I-Beam cursor (text cursor). The following takes care
// of returning the correct bitmap.
Bitmap resultBitmap = null;
using (Bitmap bitmapMask = Bitmap.FromHbitmap(iconInfo.MaskBitmap.Handle))
{
// Here we have to determine if the current cursor is monochrome in order
// to do a proper processing. If we just extracted the cursor icon from
// the icon handle, monochrome cursors would appear garbled.
if (bitmapMask.Height == bitmapMask.Width * 2)
{
// Yes, this is a monochrome cursor. We will have to manually copy
// the bitmap and the bitmak layers of the cursor into the bitmap.
resultBitmap = new Bitmap(bitmapMask.Width, bitmapMask.Width);
NativeMethods.SelectObject(mask.Handle, iconInfo.MaskBitmap.Handle);
using (Graphics resultGraphics = Graphics.FromImage(resultBitmap))
{
IntPtr resultHandle = resultGraphics.GetHdc();
// These two operation will result in a black cursor over a white background. Later
// in the code, a call to MakeTransparent() will get rid of the white background.
NativeMethods.BitBlt(resultHandle, 0, 0, 32, 32, mask.Handle, 0, 32, CopyPixelOperation.SourceCopy);
NativeMethods.BitBlt(resultHandle, 0, 0, 32, 32, mask.Handle, 0, 0, CopyPixelOperation.SourceInvert);
resultGraphics.ReleaseHdc(resultHandle);
}
// Remove the white background from the BitBlt calls,
// resulting in a black cursor over a transparent background.
resultBitmap.MakeTransparent(Color.White);
}
else
{
// This isn't a monochrome cursor.
using (Icon icon = Icon.FromHandle(hicon.Handle))
resultBitmap = icon.ToBitmap();
}
}
return(resultBitmap);
}
}
internal static extern int ExtractIconEx(string szExeFileName, int nIconIndex, out IconHandle phiconLarge,
out IconHandle phiconSmall, int nIcons);
