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EnumThreadWndProc callback function

An application-defined callback function used with the EnumThreadWindows function. It receives the window handles associated with a thread. The WNDENUMPROC type defines a pointer to this callback function. EnumThreadWndProc is a placeholder for the application-defined function name.

Syntax

BOOL CALLBACK EnumThreadWndProc(
  _In_ HWND   hwnd,
  _In_ LPARAM lParam
);

Parameters

  • hwnd [in]
    A handle to a window associated with the thread specified in the EnumThreadWindows function.

  • lParam [in]
    The application-defined value given in the EnumThreadWindows function.

Return value

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

Remarks

An application must register this callback function by passing its address to the EnumThreadWindows function.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winuser.h (include Windows.h)

See also

Reference

EnumThreadWindows

Conceptual

Windows