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(
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HWND hwnd, |
// handle to parent window |
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LPARAM lParam |
// application-defined value |
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); |
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.