EnumDesktops

The EnumDesktops function enumerates all desktops in the window station assigned to the calling process. The function does so by passing the name of each desktop, in turn, to an application-defined callback function.

BOOL EnumDesktops(

HWINSTA hwinsta,	// handle to window station to enumerate
DESKTOPENUMPROC lpEnumFunc,	// points to application's callback function
LPARAM lParam	// 32-bit value to pass to the callback function
);

Parameters

hwinsta

Specifies the handle to the window station whose desktops are to be enumerated. The CreateWindowStation, GetProcessWindowStation, and OpenWindowStation functions return a window station handle.

lpEnumFunc

Points to an application-defined EnumDesktopProc callback function.

dwDesiredAccess

Specifies a 32-bit application-defined value to be passed to the callback function.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The calling process must have WINSTA_ENUMDESKTOPS access to the window station. The EnumDesktops function enumerates only those desktops for which the calling process has DESKTOP_ENUMERATE access.

The EnumDesktops function repeatedly invokes the lpEnumFunc callback function until the last desktop is enumerated or the callback function returns FALSE.

See Also

CreateWindowStation, EnumDesktopProc, GetProcessWindowStation, OpenWindowStation

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