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EnumDesktops info  Overview  Group

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


// points to application’s callback function

    LPARAM lParam

// 32-bit value to pass to the callback function



Specifies the handle to the window station whose desktops are to be enumerated. The CreateWindowStation, GetProcessWindowStation, and OpenWindowStation functions return a window station handle.
Points to an application-defined EnumDesktopProc callback function.
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.


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

file: /Techref/os/win/api/win32/func/src/f20_1.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2022/5/26 01:20,

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