67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
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// Copyright (c) 2000 Microsoft Corporation. All rights reserved.
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//
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// Declaration of CSliderValue.
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//
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#pragma once
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class Handler
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{
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public:
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virtual LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) = 0;
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};
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class CSliderValue
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: public Handler
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{
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public:
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CSliderValue();
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void Init(HWND hwndSlider, HWND hwndEdit, float fMin, float fMax, bool fDiscrete);
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void SetValue(float fPos);
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float GetValue();
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LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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private:
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bool m_fInit;
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HWND m_hwndSlider;
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HWND m_hwndEdit;
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float m_fMin;
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float m_fMax;
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bool m_fDiscrete;
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private:
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float GetSliderValue();
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void UpdateEditBox(float fPos);
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void UpdateSlider();
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};
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class CRadioChoice
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: public Handler
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{
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public:
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struct ButtonEntry
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{
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int nIDDlgItem;
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LONG lValue;
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};
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// Create passing a ButtonEntry array terminated by an entry with nIDDlgItem of 0.
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CRadioChoice(const ButtonEntry *pButtonInfo);
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void SetChoice(HWND hDlg, LONG lValue);
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LONG GetChoice(HWND hDlg);
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LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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private:
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const ButtonEntry *m_pButtonInfo;
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};
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// MessageHandlerChain is a helper for implementing the property page message handler.
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// It takes a NULL-terminated array of Message pointers (could be CSliderValue or CRadioChoice)
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// and calls them in order until one of them sets bHandled.
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LRESULT MessageHandlerChain(Handler **ppHandlers, UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
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