private void Button_Click(object sender, RoutedEventArgs e)
{
PickModeOn = !PickModeOn;
if (PickModeOn)
{
Timer.Start();
Point mousePos = MouseHook.GetCursorPosition();
myPopup.Placement = System.Windows.Controls.Primitives.PlacementMode.AbsolutePoint;
myPopup.HorizontalOffset = mousePos.X;
myPopup.VerticalOffset = mousePos.Y;
myPopup.IsOpen = true;
}
else
{
Timer.Stop();
myPopup.IsOpen = false;
}
}
private void Timer_Tick(object sender, EventArgs e)
{
IntPtr handle = IntPtr.Zero;
try
{
Point cursorPosition = MouseHook.GetCursorPosition();
myPopup.HorizontalOffset = cursorPosition.X;
myPopup.VerticalOffset = cursorPosition.Y;
Bitmap bitmap;
bitmap = new Bitmap(50, 50, PixelFormat.Format32bppArgb);
using (Graphics g = Graphics.FromImage(bitmap))
{
g.CopyFromScreen((int)cursorPosition.X - 25, (int)cursorPosition.Y - 25, 0, 0, bitmap.Size);
}
handle = bitmap.GetHbitmap();
imgControl.Source = Imaging.CreateBitmapSourceFromHBitmap(handle, IntPtr.Zero, Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
var pixel = bitmap.GetPixel(25, 25);
PickedColor = Color.FromArgb(pixel.A, pixel.R, pixel.G, pixel.B);
if (MouseHook.GetLeftButtonState() < 0)
{
if (!this.IsMouseOver)
{
PickedColors.Add(PickedColor);
}
}
}
catch (Exception)
{ }
finally
{
DeleteObject(handle);
}
}