DoubleClick . ダブルクリック



	case WM_LBUTTONDBLCLK:
	{

	}


	ダブルクリックを取得するには以下のスタイルが必要。

	        wndClass.style = CS_DBLCLKS;


	

Only windows that have the CS_DBLCLKS style can receive WM_LBUTTONDBLCLK messages, 

which the OS generates when the user presses, releases, and again presses the left mouse button 
within the time limit for double-clicks for the system. 
Double-clicking the left mouse button actually generates the following series of four messages: