WM_CHANGECBCHAIN top-level constant
int
const WM_CHANGECBCHAIN
Sent to the first window in the clipboard viewer chain when a window is being removed from the chain.
A window receives this message through its WindowProc function.
To learn more, see learn.microsoft.com/windows/win32/dataxchg/wm-changecbchain.
Implementation
const WM_CHANGECBCHAIN = 781;