import clr

clr.AddReference("System.Drawing")
clr.AddReference("System.Windows.Forms")

from System.Drawing import Point, Size
from System.Windows.Forms import (
  Application, Button, Form, FormStartPosition, MouseButtons
)

class frmMain(Form):
   def __init__(self):
      self._blnMoving = False
      self.InitializeComponent()

   def InitializeComponent(self):
      self._btnMouse = Button()
      #
      #btnMouse
      #
      self._btnMouse.Location = Point(self.Width / 2, self.Height / 2)
      self._btnMouse.Size = Size(110, 27)
      self._btnMouse.Text = "Click me and move"
      self._btnMouse.MouseDown += self.btnMouse_MouseDown
      self._btnMouse.MouseMove += self.btnMouse_MouseMove
      self._btnMouse.MouseUp += self.btnMouse_MouseUp
      #
      #frmMain
      #
      self.ClientSize = Size(570, 370)
      self.Controls.Add(self._btnMouse)
      self.StartPosition = FormStartPosition.CenterScreen
      self.Text = "MovableButton"

   def btnMouse_MouseDown(self, sender, e):
      if e.Button == MouseButtons.Left:
          self._blnMoving = True
          self._btnLocate = e.Location

   def btnMouse_MouseMove(self, sender, e):
      if self._blnMoving:
          btn = sender
          btn.Location = Point(btn.Left - self._btnLocate.X + e.X,
                                btn.Top - self._btnLocate.Y + e.Y)

   def btnMouse_MouseUp(self, sender, e):
      if e.Button == MouseButtons.Left:
          self._blnMoving = False



if __name__ == "__main__":
   Application.EnableVisualStyles()
   Application.Run(frmMain())