CONTPROP.H

//==========================================================================; 
// 
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY 
//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR 
//  PURPOSE. 
// 
//  Copyright (c) 1992 - 1997  Microsoft Corporation.  All Rights Reserved. 
// 
//--------------------------------------------------------------------------; 
 
// This class implements the property page for the contrast filter 
 
class CContrastProperties : public CBasePropertyPage 
{ 
 
public: 
 
    static CUnknown * WINAPI CreateInstance(LPUNKNOWN lpunk, HRESULT *phr); 
 
private: 
 
    BOOL OnReceiveMessage(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam); 
    HRESULT OnConnect(IUnknown *pUnknown); 
    HRESULT OnDisconnect(); 
    HRESULT OnDeactivate(); 
    HRESULT OnApplyChanges(); 
 
    void SetDirty(); 
 
    HWNDCreateSlider(HWND hwndParent); 
    voidOnSliderNotification(WPARAM wParam); 
    HWNDm_hwndSlider; 
 
    CContrastProperties(LPUNKNOWN lpunk, HRESULT *phr); 
    signed char m_cContrastOnExit; // Remember contrast level for CANCEL 
    signed char m_cContrastLevel;  // And likewise for next activate 
 
    IContrast *m_pContrast; 
 
    IContrast *pIContrast() { 
        ASSERT(m_pContrast); 
        return m_pContrast; 
    }; 
 
}; // CContrastProperties