DoubleClick . ダブルクリック

ダブルクリックを取得するには以下のスタイルが必要。 = 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: