WM_XBUTTONUP top-level constant Null safety

int const WM_XBUTTONUP

Posted when the user releases the first or second X button while the cursor is in the client area of a window. If the mouse is not captured, the message is posted to the window beneath the cursor. Otherwise, the message is posted to the window that has captured the mouse.

Implementation

const WM_XBUTTONUP = 0x020C;