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EnumChildProc callback function

Applies to: desktop apps only

An application-defined callback function used with the EnumChildWindows function. It receives the child window handles. The WNDENUMPROC type defines a pointer to this callback function. EnumChildProc is a placeholder for the application-defined function name.

Syntax

Copy

BOOL CALLBACK EnumChildProc(
  __in  HWND hwnd,
  __in  LPARAM lParam
);

Parameters

hwnd [in]: A handle to a child window of the parent window specified in EnumChildWindows.
lParam [in]: The application-defined value given in EnumChildWindows.

Return value

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

Remarks

The callback function can carry out any desired task.

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

Requirements