The AnyPopup function indicates whether an owned, visible, top-level pop-up, or overlapped window exists on the screen. The function searches the entire Windows screen, not just the calling application's client area.
BOOL AnyPopup(VOID)
Parameters
This function has no parameters.
Return Values
If a pop-up window exists, the return value is nonzero, even if the pop-up window is completely covered by other windows.
If a pop-up window does not exist, the return value is zero.
Remarks
AnyPopup is a Windows version 1.x function and is retained for compatibility purposes. It is generally not useful.
This function does not detect unowned pop-up windows or windows that do not have the WS_VISIBLE style bit set.
See Also