UxTheme 的封装 – Artificial Intelligence Swift Note

具体我想还是看源代码，运用动态加载是一个比较好的solution。
原始link：http://www.codeproject.com/KB/winsdk/xpvisualstyle.aspx
在许多open source的GUI framework中，都用到了这个 uxtheme的类似封装方法。
这样，在它们自己owner draw的控件中，直接call 这些api，可以很容易的把GUI 风格
转到系统所能提供的theme风格，尤其是对非客户区的支持。这在企业级的软件应用中
显的非常重要，尤其是欧美客户群。
国内的如QQ，360等大公司用的GUI style，一般都把非客户区直接去掉了，换成了自己的风格。
原因我想是它们一来是面向最终的消费者，二来是它们提供的客户区的内容非常的复杂，用
系统自带的一些控件已经无法满足其需求，当然用户的选择是最重要的。
保留非客户区的好处是随时可以切换到系统自带的风格，让系统来控制非客户区，这样以后在windows8,9
中，就不用考虑非客户区的风格。
一下源代码来自上面的link。
#ifndef _VISUALSTYLE_XP_H_
#define _VISUALSTYLE_XP_H_
#pragma once
#include <uxtheme.h>
#include <tmschema.h>
class CVisualStylesXP
{
private:
    HMODULE m_hThemeDll;
    void* GetProc(LPCSTR szProc, void* pfnFail);
    typedef HTHEME(__stdcall *PFNOPENTHEMEDATA)(HWND hwnd, LPCWSTR pszClassList);
    static HTHEME OpenThemeDataFail(HWND , LPCWSTR )
    {return NULL;}
    typedef HRESULT(__stdcall *PFNCLOSETHEMEDATA)(HTHEME hTheme);
    static HRESULT CloseThemeDataFail(HTHEME)
    {return E_FAIL;}
    typedef HRESULT(__stdcall *PFNDRAWTHEMEBACKGROUND)(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, const RECT *pRect, const RECT *pClipRect);
    static HRESULT DrawThemeBackgroundFail(HTHEME, HDC, int, int, const RECT *, const RECT *)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNDRAWTHEMETEXT)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwTextFlags, 
        DWORD dwTextFlags2, const RECT *pRect);
    static HRESULT DrawThemeTextFail(HTHEME, HDC, int, int, LPCWSTR, int, DWORD, DWORD, const RECT*)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEBACKGROUNDCONTENTRECT)(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, const RECT *pBoundingRect, 
        RECT *pContentRect);
    static HRESULT GetThemeBackgroundContentRectFail(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, const RECT *pBoundingRect, 
        RECT *pContentRect)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEBACKGROUNDEXTENT)(HTHEME hTheme, HDC hdc,
        int iPartId, int iStateId, const RECT *pContentRect, 
        RECT *pExtentRect);
    static HRESULT GetThemeBackgroundExtentFail(HTHEME hTheme, HDC hdc,
        int iPartId, int iStateId, const RECT *pContentRect, 
        RECT *pExtentRect)
    {return E_FAIL;}
    typedef HRESULT(__stdcall *PFNGETTHEMEPARTSIZE)(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, RECT * pRect, enum THEMESIZE eSize, SIZE *psz);
    static HRESULT GetThemePartSizeFail(HTHEME, HDC, int, int, RECT *, enum THEMESIZE, SIZE *)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMETEXTEXTENT)(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, 
        DWORD dwTextFlags, const RECT *pBoundingRect, 
        RECT *pExtentRect);
    static HRESULT GetThemeTextExtentFail(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, 
        DWORD dwTextFlags, const RECT *pBoundingRect, 
        RECT *pExtentRect)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMETEXTMETRICS)(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, TEXTMETRIC* ptm);
    static HRESULT GetThemeTextMetricsFail(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, TEXTMETRIC* ptm)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEBACKGROUNDREGION)(HTHEME hTheme, HDC hdc,  
        int iPartId, int iStateId, const RECT *pRect, HRGN *pRegion);
    static HRESULT GetThemeBackgroundRegionFail(HTHEME hTheme, HDC hdc,  
        int iPartId, int iStateId, const RECT *pRect, HRGN *pRegion)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNHITTESTTHEMEBACKGROUND)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, DWORD dwOptions, const RECT *pRect, HRGN hrgn, 
        POINT ptTest, WORD *pwHitTestCode);
    static HRESULT HitTestThemeBackgroundFail(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, DWORD dwOptions, const RECT *pRect, HRGN hrgn, 
        POINT ptTest, WORD *pwHitTestCode)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNDRAWTHEMEEDGE)(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, 
        const RECT *pDestRect, UINT uEdge, UINT uFlags, RECT *pContentRect);
    static HRESULT DrawThemeEdgeFail(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, 
        const RECT *pDestRect, UINT uEdge, UINT uFlags, RECT *pContentRect)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNDRAWTHEMEICON)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, const RECT *pRect, HIMAGELIST himl, int iImageIndex);
    static HRESULT DrawThemeIconFail(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, const RECT *pRect, HIMAGELIST himl, int iImageIndex)
    {return E_FAIL;}
    typedef BOOL (__stdcall *PFNISTHEMEPARTDEFINED)(HTHEME hTheme, int iPartId, 
        int iStateId);
    static BOOL IsThemePartDefinedFail(HTHEME hTheme, int iPartId, 
        int iStateId)
    {return FALSE;}
    typedef BOOL (__stdcall *PFNISTHEMEBACKGROUNDPARTIALLYTRANSPARENT)(HTHEME hTheme, 
        int iPartId, int iStateId);
    static BOOL IsThemeBackgroundPartiallyTransparentFail(HTHEME hTheme, 
        int iPartId, int iStateId)
    {return FALSE;}
    typedef HRESULT (__stdcall *PFNGETTHEMECOLOR)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, COLORREF *pColor);
    static HRESULT GetThemeColorFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, COLORREF *pColor)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEMETRIC)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    static HRESULT GetThemeMetricFail(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, int *piVal)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMESTRING)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszBuff, int cchMaxBuffChars);
    static HRESULT GetThemeStringFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszBuff, int cchMaxBuffChars)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEBOOL)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, BOOL *pfVal);
    static HRESULT GetThemeBoolFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, BOOL *pfVal)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEINT)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    static HRESULT GetThemeIntFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEENUMVALUE)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    static HRESULT GetThemeEnumValueFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEPOSITION)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, POINT *pPoint);
    static HRESULT GetThemePositionFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, POINT *pPoint)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEFONT)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, LOGFONT *pFont);
    static HRESULT GetThemeFontFail(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, LOGFONT *pFont)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMERECT)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, RECT *pRect);
    static HRESULT GetThemeRectFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, RECT *pRect)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEMARGINS)(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, RECT *prc, MARGINS *pMargins);
    static HRESULT GetThemeMarginsFail(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, RECT *prc, MARGINS *pMargins)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEINTLIST)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, INTLIST *pIntList);
    static HRESULT GetThemeIntListFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, INTLIST *pIntList)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEPROPERTYORIGIN)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, enum PROPERTYORIGIN *pOrigin);
    static HRESULT GetThemePropertyOriginFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, enum PROPERTYORIGIN *pOrigin)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNSETWINDOWTHEME)(HWND hwnd, LPCWSTR pszSubAppName, 
        LPCWSTR pszSubIdList);
    static HRESULT SetWindowThemeFail(HWND hwnd, LPCWSTR pszSubAppName, 
        LPCWSTR pszSubIdList)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEFILENAME)(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszThemeFileName, int cchMaxBuffChars);
    static HRESULT GetThemeFilenameFail(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszThemeFileName, int cchMaxBuffChars)
    {return E_FAIL;}
    typedef COLORREF (__stdcall *PFNGETTHEMESYSCOLOR)(HTHEME hTheme, int iColorId);
    static COLORREF GetThemeSysColorFail(HTHEME hTheme, int iColorId)
    {return RGB(255,255,255);}
    typedef HBRUSH (__stdcall *PFNGETTHEMESYSCOLORBRUSH)(HTHEME hTheme, int iColorId);
    static HBRUSH GetThemeSysColorBrushFail(HTHEME hTheme, int iColorId)
    {return NULL;}
    typedef BOOL (__stdcall *PFNGETTHEMESYSBOOL)(HTHEME hTheme, int iBoolId);
    static BOOL GetThemeSysBoolFail(HTHEME hTheme, int iBoolId)
    {return FALSE;}
    typedef int (__stdcall *PFNGETTHEMESYSSIZE)(HTHEME hTheme, int iSizeId);
    static int GetThemeSysSizeFail(HTHEME hTheme, int iSizeId)
    {return 0;}
    typedef HRESULT (__stdcall *PFNGETTHEMESYSFONT)(HTHEME hTheme, int iFontId, LOGFONT *plf);
    static HRESULT GetThemeSysFontFail(HTHEME hTheme, int iFontId, LOGFONT *plf)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMESYSSTRING)(HTHEME hTheme, int iStringId, 
        LPWSTR pszStringBuff, int cchMaxStringChars);
    static HRESULT GetThemeSysStringFail(HTHEME hTheme, int iStringId, 
        LPWSTR pszStringBuff, int cchMaxStringChars)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMESYSINT)(HTHEME hTheme, int iIntId, int *piValue);
    static HRESULT GetThemeSysIntFail(HTHEME hTheme, int iIntId, int *piValue)
    {return E_FAIL;}
    typedef BOOL (__stdcall *PFNISTHEMEACTIVE)();
    static BOOL IsThemeActiveFail()
    {return FALSE;}
    typedef BOOL(__stdcall *PFNISAPPTHEMED)();
    static BOOL IsAppThemedFail()
    {return FALSE;}
    typedef HTHEME (__stdcall *PFNGETWINDOWTHEME)(HWND hwnd);
    static HTHEME GetWindowThemeFail(HWND hwnd)
    {return NULL;}
    typedef HRESULT (__stdcall *PFNENABLETHEMEDIALOGTEXTURE)(HWND hwnd, DWORD dwFlags);
    static HRESULT EnableThemeDialogTextureFail(HWND hwnd, DWORD dwFlags)
    {return E_FAIL;}
    typedef BOOL (__stdcall *PFNISTHEMEDIALOGTEXTUREENABLED)(HWND hwnd);
    static BOOL IsThemeDialogTextureEnabledFail(HWND hwnd)
    {return FALSE;}
    typedef DWORD (__stdcall *PFNGETTHEMEAPPPROPERTIES)();
    static DWORD GetThemeAppPropertiesFail()
    {return 0;}
    typedef void (__stdcall *PFNSETTHEMEAPPPROPERTIES)(DWORD dwFlags);
    static void SetThemeAppPropertiesFail(DWORD dwFlags)
    {return;}
    typedef HRESULT (__stdcall *PFNGETCURRENTTHEMENAME)(
        LPWSTR pszThemeFileName, int cchMaxNameChars, 
        LPWSTR pszColorBuff, int cchMaxColorChars,
        LPWSTR pszSizeBuff, int cchMaxSizeChars);
    static HRESULT GetCurrentThemeNameFail(
        LPWSTR pszThemeFileName, int cchMaxNameChars, 
        LPWSTR pszColorBuff, int cchMaxColorChars,
        LPWSTR pszSizeBuff, int cchMaxSizeChars)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNGETTHEMEDOCUMENTATIONPROPERTY)(LPCWSTR pszThemeName,
        LPCWSTR pszPropertyName, LPWSTR pszValueBuff, int cchMaxValChars);
    static HRESULT GetThemeDocumentationPropertyFail(LPCWSTR pszThemeName,
        LPCWSTR pszPropertyName, LPWSTR pszValueBuff, int cchMaxValChars)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNDRAWTHEMEPARENTBACKGROUND)(HWND hwnd, HDC hdc, RECT* prc);
    static HRESULT DrawThemeParentBackgroundFail(HWND hwnd, HDC hdc, RECT* prc)
    {return E_FAIL;}
    typedef HRESULT (__stdcall *PFNENABLETHEMING)(BOOL fEnable);
    static HRESULT EnableThemingFail(BOOL fEnable)
    {return E_FAIL;}
public:
    HTHEME OpenThemeData(HWND hwnd, LPCWSTR pszClassList);
    HRESULT CloseThemeData(HTHEME hTheme);
    HRESULT DrawThemeBackground(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, const RECT *pRect, const RECT *pClipRect);
    HRESULT DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, LPCWSTR pszText, int iCharCount, DWORD dwTextFlags, 
        DWORD dwTextFlags2, const RECT *pRect);
    HRESULT GetThemeBackgroundContentRect(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, const RECT *pBoundingRect, 
        RECT *pContentRect);
    HRESULT GetThemeBackgroundExtent(HTHEME hTheme, HDC hdc,
        int iPartId, int iStateId, const RECT *pContentRect, 
        RECT *pExtentRect);
    HRESULT GetThemePartSize(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, RECT * pRect, enum THEMESIZE eSize, SIZE *psz);
    HRESULT GetThemeTextExtent(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, LPCWSTR pszText, int iCharCount, 
        DWORD dwTextFlags, const RECT *pBoundingRect, 
        RECT *pExtentRect);
    HRESULT GetThemeTextMetrics(HTHEME hTheme, HDC hdc, 
        int iPartId, int iStateId, TEXTMETRIC* ptm);
    HRESULT GetThemeBackgroundRegion(HTHEME hTheme, HDC hdc,  
        int iPartId, int iStateId, const RECT *pRect, HRGN *pRegion);
    HRESULT HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, DWORD dwOptions, const RECT *pRect, HRGN hrgn, 
        POINT ptTest, WORD *pwHitTestCode);
    HRESULT DrawThemeEdge(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, 
        const RECT *pDestRect, UINT uEdge, UINT uFlags, RECT *pContentRect);
    HRESULT DrawThemeIcon(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, const RECT *pRect, HIMAGELIST himl, int iImageIndex);
    BOOL IsThemePartDefined(HTHEME hTheme, int iPartId, 
        int iStateId);
    BOOL IsThemeBackgroundPartiallyTransparent(HTHEME hTheme, 
        int iPartId, int iStateId);
    HRESULT GetThemeColor(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, COLORREF *pColor);
    HRESULT GetThemeMetric(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    HRESULT GetThemeString(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszBuff, int cchMaxBuffChars);
    HRESULT GetThemeBool(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, BOOL *pfVal);
    HRESULT GetThemeInt(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    HRESULT GetThemeEnumValue(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, int *piVal);
    HRESULT GetThemePosition(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, POINT *pPoint);
    HRESULT GetThemeFont(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, LOGFONT *pFont);
    HRESULT GetThemeRect(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, RECT *pRect);
    HRESULT GetThemeMargins(HTHEME hTheme, HDC hdc, int iPartId, 
        int iStateId, int iPropId, RECT *prc, MARGINS *pMargins);
    HRESULT GetThemeIntList(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, INTLIST *pIntList);
    HRESULT GetThemePropertyOrigin(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, enum PROPERTYORIGIN *pOrigin);
    HRESULT SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName, 
        LPCWSTR pszSubIdList);
    HRESULT GetThemeFilename(HTHEME hTheme, int iPartId, 
        int iStateId, int iPropId, LPWSTR pszThemeFileName, int cchMaxBuffChars);
    COLORREF GetThemeSysColor(HTHEME hTheme, int iColorId);
    HBRUSH GetThemeSysColorBrush(HTHEME hTheme, int iColorId);
    BOOL GetThemeSysBool(HTHEME hTheme, int iBoolId);
    int GetThemeSysSize(HTHEME hTheme, int iSizeId);
    HRESULT GetThemeSysFont(HTHEME hTheme, int iFontId, LOGFONT *plf);
    HRESULT GetThemeSysString(HTHEME hTheme, int iStringId, 
        LPWSTR pszStringBuff, int cchMaxStringChars);
    HRESULT GetThemeSysInt(HTHEME hTheme, int iIntId, int *piValue);
    BOOL IsThemeActive();
    BOOL IsAppThemed();    
    HTHEME GetWindowTheme(HWND hwnd);
    HRESULT EnableThemeDialogTexture(HWND hwnd, DWORD dwFlags);
    BOOL IsThemeDialogTextureEnabled(HWND hwnd);
    DWORD GetThemeAppProperties();
    void SetThemeAppProperties(DWORD dwFlags);
    HRESULT GetCurrentThemeName(
        LPWSTR pszThemeFileName, int cchMaxNameChars, 
        LPWSTR pszColorBuff, int cchMaxColorChars,
        LPWSTR pszSizeBuff, int cchMaxSizeChars);
    HRESULT GetThemeDocumentationProperty(LPCWSTR pszThemeName,
        LPCWSTR pszPropertyName, LPWSTR pszValueBuff, int cchMaxValChars);
    HRESULT DrawThemeParentBackground(HWND hwnd, HDC hdc, RECT* prc);
    HRESULT EnableTheming(BOOL fEnable);
public:
    CVisualStylesXP(void);
    ~CVisualStylesXP(void);
};
extern CVisualStylesXP g_xpStyle;
#endif