atlgdi.h

文件加密器使用说明 本软件可以加密需要保护的数据文件

///////////////////////////////////////////////////////////////////////////////
// CDC - The device context class

template <bool t_bManaged>
class CDCT
{
public:
// Data members
	HDC m_hDC;

// Constructor/destructor/operators
	CDCT(HDC hDC = NULL) : m_hDC(hDC)
	{
	}

	~CDCT()
	{
		if(t_bManaged && m_hDC != NULL)
			::DeleteDC(Detach());
	}

	CDCT<t_bManaged>& operator =(HDC hDC)
	{
		Attach(hDC);
		return *this;
	}

	void Attach(HDC hDC)
	{
		if(t_bManaged && m_hDC != NULL && m_hDC != hDC)
			::DeleteDC(m_hDC);
		m_hDC = hDC;
	}

	HDC Detach()
	{
		HDC hDC = m_hDC;
		m_hDC = NULL;
		return hDC;
	}

	operator HDC() const { return m_hDC; }

	bool IsNull() const { return (m_hDC == NULL); }

// Operations
#ifndef _WIN32_WCE
	HWND WindowFromDC() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::WindowFromDC(m_hDC);
	}
#endif //!_WIN32_WCE

	CPenHandle GetCurrentPen() const
	{
		ATLASSERT(m_hDC != NULL);
		return CPenHandle((HPEN)::GetCurrentObject(m_hDC, OBJ_PEN));
	}

	CBrushHandle GetCurrentBrush() const
	{
		ATLASSERT(m_hDC != NULL);
		return CBrushHandle((HBRUSH)::GetCurrentObject(m_hDC, OBJ_BRUSH));
	}

	CPaletteHandle GetCurrentPalette() const
	{
		ATLASSERT(m_hDC != NULL);
		return CPaletteHandle((HPALETTE)::GetCurrentObject(m_hDC, OBJ_PAL));
	}

	CFontHandle GetCurrentFont() const
	{
		ATLASSERT(m_hDC != NULL);
		return CFontHandle((HFONT)::GetCurrentObject(m_hDC, OBJ_FONT));
	}

	CBitmapHandle GetCurrentBitmap() const
	{
		ATLASSERT(m_hDC != NULL);
		return CBitmapHandle((HBITMAP)::GetCurrentObject(m_hDC, OBJ_BITMAP));
	}

	HDC CreateDC(LPCTSTR lpszDriverName, LPCTSTR lpszDeviceName, LPCTSTR lpszOutput, const DEVMODE* lpInitData)
	{
		ATLASSERT(m_hDC == NULL);
		m_hDC = ::CreateDC(lpszDriverName, lpszDeviceName, lpszOutput, lpInitData);
		return m_hDC;
	}

	HDC CreateCompatibleDC(HDC hDC = NULL)
	{
		ATLASSERT(m_hDC == NULL);
		m_hDC = ::CreateCompatibleDC(hDC);
		return m_hDC;
	}

	BOOL DeleteDC()
	{
		if(m_hDC == NULL)
			return FALSE;
		BOOL bRet = ::DeleteDC(m_hDC);
		if(bRet)
			m_hDC = NULL;
		return bRet;
	}

// Device-Context Functions
	int SaveDC()
	{
		ATLASSERT(m_hDC != NULL);
		return ::SaveDC(m_hDC);
	}

	BOOL RestoreDC(int nSavedDC)
	{
		ATLASSERT(m_hDC != NULL);
		return ::RestoreDC(m_hDC, nSavedDC);
	}

	int GetDeviceCaps(int nIndex) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetDeviceCaps(m_hDC, nIndex);
	}

#ifndef _WIN32_WCE
	UINT SetBoundsRect(LPCRECT lpRectBounds, UINT flags)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetBoundsRect(m_hDC, lpRectBounds, flags);
	}

	UINT GetBoundsRect(LPRECT lpRectBounds, UINT flags) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetBoundsRect(m_hDC, lpRectBounds, flags);
	}

	BOOL ResetDC(const DEVMODE* lpDevMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::ResetDC(m_hDC, lpDevMode) != NULL;
	}

// Drawing-Tool Functions
	BOOL GetBrushOrg(LPPOINT lpPoint) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetBrushOrgEx(m_hDC, lpPoint);
	}
#endif //!_WIN32_WCE

	BOOL SetBrushOrg(int x, int y, LPPOINT lpPoint = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetBrushOrgEx(m_hDC, x, y, lpPoint);
	}

	BOOL SetBrushOrg(POINT point, LPPOINT lpPointRet = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetBrushOrgEx(m_hDC, point.x, point.y, lpPointRet);
	}

#ifndef _WIN32_WCE
	int EnumObjects(int nObjectType, int (CALLBACK* lpfn)(LPVOID, LPARAM), LPARAM lpData)
	{
		ATLASSERT(m_hDC != NULL);
#ifdef STRICT
		return ::EnumObjects(m_hDC, nObjectType, (GOBJENUMPROC)lpfn, lpData);
#else
		return ::EnumObjects(m_hDC, nObjectType, (GOBJENUMPROC)lpfn, (LPVOID)lpData);
#endif
	}
#endif //!_WIN32_WCE

// Type-safe selection helpers
	HPEN SelectPen(HPEN hPen)
	{
		ATLASSERT(m_hDC != NULL);
#ifndef _WIN32_WCE
		ATLASSERT(hPen == NULL || ::GetObjectType(hPen) == OBJ_PEN || ::GetObjectType(hPen) == OBJ_EXTPEN);
#else // CE specific
		ATLASSERT(hPen == NULL || ::GetObjectType(hPen) == OBJ_PEN);
#endif //_WIN32_WCE
		return (HPEN)::SelectObject(m_hDC, hPen);
	}

	HBRUSH SelectBrush(HBRUSH hBrush)
	{
		ATLASSERT(m_hDC != NULL);
		ATLASSERT(hBrush == NULL || ::GetObjectType(hBrush) == OBJ_BRUSH);
		return (HBRUSH)::SelectObject(m_hDC, hBrush);
	}

	HFONT SelectFont(HFONT hFont)
	{
		ATLASSERT(m_hDC != NULL);
		ATLASSERT(hFont == NULL || ::GetObjectType(hFont) == OBJ_FONT);
		return (HFONT)::SelectObject(m_hDC, hFont);
	}

	HBITMAP SelectBitmap(HBITMAP hBitmap)
	{
		ATLASSERT(m_hDC != NULL);
		ATLASSERT(hBitmap == NULL || ::GetObjectType(hBitmap) == OBJ_BITMAP);
		return (HBITMAP)::SelectObject(m_hDC, hBitmap);
	}

	int SelectRgn(HRGN hRgn)       // special return for regions
	{
		ATLASSERT(m_hDC != NULL);
		ATLASSERT(hRgn == NULL || ::GetObjectType(hRgn) == OBJ_REGION);
		return PtrToInt(::SelectObject(m_hDC, hRgn));
	}

// Type-safe selection helpers for stock objects
	HPEN SelectStockPen(int nPen)
	{
		ATLASSERT(m_hDC != NULL);
#if (_WIN32_WINNT >= 0x0500)
		ATLASSERT(nPen == WHITE_PEN || nPen == BLACK_PEN || nPen == NULL_PEN || nPen == DC_PEN);
#else
		ATLASSERT(nPen == WHITE_PEN || nPen == BLACK_PEN || nPen == NULL_PEN);
#endif //!(_WIN32_WINNT >= 0x0500)
		return SelectPen((HPEN)::GetStockObject(nPen));
	}

	HBRUSH SelectStockBrush(int nBrush)
	{
#if (_WIN32_WINNT >= 0x0500)
		ATLASSERT((nBrush >= WHITE_BRUSH && nBrush <= HOLLOW_BRUSH) || nBrush == DC_BRUSH);
#else
		ATLASSERT(nBrush >= WHITE_BRUSH && nBrush <= HOLLOW_BRUSH);
#endif //!(_WIN32_WINNT >= 0x0500)
		return SelectBrush((HBRUSH)::GetStockObject(nBrush));
	}

	HFONT SelectStockFont(int nFont)
	{
#ifndef _WIN32_WCE
		ATLASSERT((nFont >= OEM_FIXED_FONT && nFont <= SYSTEM_FIXED_FONT) || nFont == DEFAULT_GUI_FONT);
#else // CE specific
		ATLASSERT(nFont == SYSTEM_FONT);
#endif //_WIN32_WCE
		return SelectFont((HFONT)::GetStockObject(nFont));
	}

	HPALETTE SelectStockPalette(int nPalette, BOOL bForceBackground)
	{
		ATLASSERT(nPalette == DEFAULT_PALETTE); // the only one supported
		return SelectPalette((HPALETTE)::GetStockObject(nPalette), bForceBackground);
	}

// Color and Color Palette Functions
	COLORREF GetNearestColor(COLORREF crColor) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetNearestColor(m_hDC, crColor);
	}

	HPALETTE SelectPalette(HPALETTE hPalette, BOOL bForceBackground)
	{
		ATLASSERT(m_hDC != NULL);

		return ::SelectPalette(m_hDC, hPalette, bForceBackground);
	}

	UINT RealizePalette()
	{
		ATLASSERT(m_hDC != NULL);
		return ::RealizePalette(m_hDC);
	}

#ifndef _WIN32_WCE
	void UpdateColors()
	{
		ATLASSERT(m_hDC != NULL);
		::UpdateColors(m_hDC);
	}
#endif //!_WIN32_WCE

// Drawing-Attribute Functions
	COLORREF GetBkColor() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetBkColor(m_hDC);
	}

	int GetBkMode() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetBkMode(m_hDC);
	}

#ifndef _WIN32_WCE
	int GetPolyFillMode() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetPolyFillMode(m_hDC);
	}

	int GetROP2() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetROP2(m_hDC);
	}

	int GetStretchBltMode() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetStretchBltMode(m_hDC);
	}
#endif //!_WIN32_WCE

	COLORREF GetTextColor() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetTextColor(m_hDC);
	}

	COLORREF SetBkColor(COLORREF crColor)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetBkColor(m_hDC, crColor);
	}

	int SetBkMode(int nBkMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetBkMode(m_hDC, nBkMode);
	}

#ifndef _WIN32_WCE
	int SetPolyFillMode(int nPolyFillMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetPolyFillMode(m_hDC, nPolyFillMode);
	}
#endif //!_WIN32_WCE

	int SetROP2(int nDrawMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetROP2(m_hDC, nDrawMode);
	}

#ifndef _WIN32_WCE
	int SetStretchBltMode(int nStretchMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetStretchBltMode(m_hDC, nStretchMode);
	}
#endif //!_WIN32_WCE

	COLORREF SetTextColor(COLORREF crColor)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetTextColor(m_hDC, crColor);
	}

#ifndef _WIN32_WCE
	BOOL GetColorAdjustment(LPCOLORADJUSTMENT lpColorAdjust) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetColorAdjustment(m_hDC, lpColorAdjust);
	}

	BOOL SetColorAdjustment(const COLORADJUSTMENT* lpColorAdjust)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetColorAdjustment(m_hDC, lpColorAdjust);
	}

// Mapping Functions
	int GetMapMode() const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetMapMode(m_hDC);
	}

	BOOL GetViewportOrg(LPPOINT lpPoint) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetViewportOrgEx(m_hDC, lpPoint);
	}

	int SetMapMode(int nMapMode)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetMapMode(m_hDC, nMapMode);
	}
#endif //!_WIN32_WCE

	// Viewport Origin
	BOOL SetViewportOrg(int x, int y, LPPOINT lpPoint = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetViewportOrgEx(m_hDC, x, y, lpPoint);
	}

#ifndef _WIN32_WCE
	BOOL SetViewportOrg(POINT point, LPPOINT lpPointRet = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return SetViewportOrg(point.x, point.y, lpPointRet);
	}

	BOOL OffsetViewportOrg(int nWidth, int nHeight, LPPOINT lpPoint = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::OffsetViewportOrgEx(m_hDC, nWidth, nHeight, lpPoint);
	}

	// Viewport Extent
	BOOL GetViewportExt(LPSIZE lpSize) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetViewportExtEx(m_hDC, lpSize);
	}

	BOOL SetViewportExt(int x, int y, LPSIZE lpSize = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetViewportExtEx(m_hDC, x, y, lpSize);
	}

	BOOL SetViewportExt(SIZE size, LPSIZE lpSizeRet = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return SetViewportExt(size.cx, size.cy, lpSizeRet);
	}

	BOOL ScaleViewportExt(int xNum, int xDenom, int yNum, int yDenom, LPSIZE lpSize = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::ScaleViewportExtEx(m_hDC, xNum, xDenom, yNum, yDenom, lpSize);
	}
#endif //!_WIN32_WCE

	// Window Origin
#ifndef _WIN32_WCE
	BOOL GetWindowOrg(LPPOINT lpPoint) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetWindowOrgEx(m_hDC, lpPoint);
	}

	BOOL SetWindowOrg(int x, int y, LPPOINT lpPoint = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetWindowOrgEx(m_hDC, x, y, lpPoint);
	}

	BOOL SetWindowOrg(POINT point, LPPOINT lpPointRet = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return SetWindowOrg(point.x, point.y, lpPointRet);
	}

	BOOL OffsetWindowOrg(int nWidth, int nHeight, LPPOINT lpPoint = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::OffsetWindowOrgEx(m_hDC, nWidth, nHeight, lpPoint);
	}

	// Window extent
	BOOL GetWindowExt(LPSIZE lpSize) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::GetWindowExtEx(m_hDC, lpSize);
	}

	BOOL SetWindowExt(int x, int y, LPSIZE lpSize = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::SetWindowExtEx(m_hDC, x, y, lpSize);
	}

	BOOL SetWindowExt(SIZE size, LPSIZE lpSizeRet = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return SetWindowExt(size.cx, size.cy, lpSizeRet);
	}

	BOOL ScaleWindowExt(int xNum, int xDenom, int yNum, int yDenom, LPSIZE lpSize = NULL)
	{
		ATLASSERT(m_hDC != NULL);
		return ::ScaleWindowExtEx(m_hDC, xNum, xDenom, yNum, yDenom, lpSize);
	}

// Coordinate Functions
	BOOL DPtoLP(LPPOINT lpPoints, int nCount = 1) const
	{
		ATLASSERT(m_hDC != NULL);
		return ::DPtoLP(m_hDC, lpPoints, nCount);
	}

	BOOL DPtoLP(LPRECT lpRect) const
	{
		ATLASSERT(m_hDC != NULL);