tkinter_button_flash.ipynb

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   "source": [
    "# tkinter flashメソッドによるボタンの点滅 Python"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 1. tkinterのインポート"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import tkinter"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 2. ボタンクリック時に呼び出す関数\n",
    "    ボタンクリック時に呼び出される関数を定義。\n",
    "    .flash() でボタンウィジェットを点滅させる。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "def flash(event):\n",
    "    event.widget.flash()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## 3. ウィジェットの生成\n",
    "    ボタンウィジェットを生成し、.bindでflash()を呼び出すように設定。\n",
    "    ボタンに色を付けておかないと点滅がわかりづらいため。bgオプションでlight blueに設定しておく。"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "root = tkinter.Tk()\n",
    "b = tkinter.Button(text='flash test', bg='light blue')\n",
    "b.bind('<Button-1>', flash)\n",
    "b.pack()\n",
    "root.mainloop()"
   ]
  }
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