WM_NCLBUTTONDBLCLK top-level constant

int const WM_NCLBUTTONDBLCLK

Posted when the user double-clicks the left mouse button while the cursor is within the nonclient area of a window. This message is posted to the window that contains the cursor. If a window has captured the mouse, this message is not posted.

Implementation

const WM_NCLBUTTONDBLCLK = 0x00A3;