WM_STYLECHANGED Overview  Group

The WM_STYLECHANGED message is sent to a window after the SetWindowLong function has changed one or more of the window’s styles.

WM_STYLECHANGED 

wStyleType = wParam;            // extended or nonextended styles 

lpss = (LPSTYLESTRUCT) lParam;  // structure containing new styles 

 

Parameters

wStyleType

Value of wParam. Specifies whether the window’s extended or nonextended styles have changed. This parameter can be a combination of the following values:

Value	Meaning
GWL_EXSTYLE	The window’s extended styles have changed.
GWL_STYLE	The window’s nonextended styles have changed.

lpss

Value of lParam. Points to a STYLESTRUCT structure that contains the new styles for the window. An application can examine the styles, but can not change them.

Return Values

An application should return zero if it processes this message.

See Also

SetWindowLong, STYLESTRUCT, WM_STYLECHANGING