AFX_GLOBAL_DATA::SetLayeredAttrib

Provides a simple way to call the Windows SetLayeredWindowAttributes method.

BOOL SetLayeredAttrib(
   HWND hwnd,
   COLORREF crKey,
   BYTE bAlpha,
   DWORD dwFlags
);

Parameters

• [in] hwnd
  Handle to the layered window.

• [in] crKey
  The transparency color key that the Desktop Window Manager uses to compose the layered window.

• [in] bAlpha
  The alpha value that is used to describe the opacity of the layered window.

• [in] dwFlags
  A bitwise combination (OR) of flags that specify which method parameters to use. Specify LWA_COLORKEY to use the crKey parameter as the transparency color. Specify LWA_ALPHA to use the bAlpha parameter to determine the opacity of the layered window.

Return Value

TRUE if this method succeeds; otherwise, FALSE.

Requirements

Header: afxglobals.h

See Also

Reference

AFX_GLOBAL_DATA Structure

Hierarchy Chart

COLORREF

SetLayeredWindowAttributes