ResizableMsgSupport.inl

// ResizableMsgSupport.inl: some definitions to support custom resizable wnds
//
//
// Copyright (C) 2000-2002 by Paolo Messina
// (http://www.geocities.com/ppescher - [email protected])
//
// The contents of this file are subject to the Artistic License (the "License").
// You may not use this file except in compliance with the License. 
// You may obtain a copy of the License at:
// http://www.opensource.org/licenses/artistic-license.html
//
// If you find this code useful, credits would be nice!
//


// registered message to communicate with the library
// (defined so that in the same executable it is initialized only once)
const UINT WMU_RESIZESUPPORT = ::RegisterWindowMessage(_T("WMU_RESIZESUPPORT"));

// if the message is implemented the returned value must be non-zero
// the default window procedure returns zero for unhandled messages

// wParam is one of the following RSZSUP_* values, lParam as specified

#define RSZSUP_QUERYPROPERTIES  101     // lParam = LPRESIZEPROPERTIES

#define RSZSUP_LIKESCLIPPING    102     // lParam = LPCLIPPINGPROPERTY

#define RSZSUP_NEEDSREFRESH             103     // lParam = LPREFRESHPROPERTY


// utility functions

inline BOOL Send_QueryProperties(HWND hWnd, LPRESIZEPROPERTIES pResizeProperties)
{
        ASSERT(::IsWindow(hWnd));
        return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,
                RSZSUP_QUERYPROPERTIES, (LPARAM)pResizeProperties));
}

inline BOOL Send_LikesClipping(HWND hWnd, LPCLIPPINGPROPERTY pClippingProperty)
{
        ASSERT(::IsWindow(hWnd));
        return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,
                RSZSUP_LIKESCLIPPING, (LPARAM)pClippingProperty));
}

inline BOOL Send_NeedsRefresh(HWND hWnd, LPREFRESHPROPERTY pRefreshProperty)
{
        ASSERT(::IsWindow(hWnd));
        return (0 != SendMessage(hWnd, WMU_RESIZESUPPORT,
                RSZSUP_NEEDSREFRESH, (LPARAM)pRefreshProperty));
}

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