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EnumWindowsProc info  Overview  Group

The EnumWindowsProc function is an application-defined callback function that receives top-level window handles as a result of a call to the EnumWindows or EnumDesktopWindows function.

BOOL CALLBACK EnumWindowsProc(

    HWND hwnd,

// handle to parent window

    LPARAM lParam 

// application-defined value



Identifies a top-level window.
Specifies the application-defined value given in EnumWindows or EnumDesktopWindows.

Return Values

To continue enumeration, the callback function must return TRUE; to stop enumeration, it must return FALSE.


The callback function can perform any desired task.

An application must register this callback function by passing its address to EnumWindows or EnumDesktopWindows. EnumWindowsProc is a placeholder for the application-defined function name. The WNDENUMPROC type is a pointer to an EnumWindowsProc function.

See Also

EnumWindows, EnumDesktopWindows

See also:

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