QT-磨砂玻璃效果實(shí)現(xiàn)

• 前言
• • 開始

前言

接觸QT都挺多年了，今天開始打算把這幾年攢下的QT資源記錄下來(lái)，留個(gè)存檔吧。今天記錄的是windows下（只有win vista|win7支持）的玻璃磨砂效果封裝處理，記得最開始接觸這個(gè)效果的時(shí)候還是上學(xué)時(shí)期，當(dāng)時(shí)只會(huì)MFC O__O "…

開始

封裝類中使用到三個(gè)系統(tǒng)函數(shù)DwmIsCompositionEnabled、DwmEnableBlurBehindWindow、DwmExtendFrameIntoClientArea，這三個(gè)系統(tǒng)函數(shù)度娘都有很多說明【可以參考這里】，我這里簡(jiǎn)單說下：

DwmIsCompositionEnabled：判斷是否兼容DWM模式，返回TRUE，表示支持玻璃磨砂效果，否則為不支持；

DwmEnableBlurBehindWindow：開啟或關(guān)閉指定區(qū)域的玻璃磨砂效果；

DwmExtendFrameIntoClientArea：窗口邊框向客戶區(qū)擴(kuò)展的玻璃磨砂效果；

封裝類中使用動(dòng)態(tài)加載方式來(lái)引用這3個(gè)系統(tǒng)庫(kù)Dwmapi.dll，因?yàn)槭褂眠@個(gè)封裝類的程序可能要跑在XP系統(tǒng)中，而XP中是沒有Dwmapi.dll這個(gè)系統(tǒng)庫(kù)的。

源碼
QOwnAeroClass.h

#ifndef QOWNAEROCLASS_H #define QOWNAEROCLASS_H#include<windows.h> #include<QLibrary> #include<QRect>#ifndef DWM_BB_ENABLE //*****************用于XP下的結(jié)構(gòu)定義************ #define DWM_BB_ENABLE 0x00000001 // fEnable has been specified #define DWM_BB_BLURREGION 0x00000002 // hRgnBlur has been specified #define DWM_BB_TRANSITIONONMAXIMIZED 0x00000004 // fTransitionOnMaximized has been specifiedtypedef struct _DWM_BLURBEHIND {DWORD dwFlags;BOOL fEnable;HRGN hRgnBlur;BOOL fTransitionOnMaximized; } DWM_BLURBEHIND, *PDWM_BLURBEHIND;#endiftypedef struct _MARGINS {int cxLeftWidth; // width of left border that retains its sizeint cxRightWidth; // width of right border that retains its sizeint cyTopHeight; // height of top border that retains its sizeint cyBottomHeight; // height of bottom border that retains its size } MARGINS, *PMARGINS;typedef HRESULT (WINAPI* MyDwmIsCompositionEnabled)(BOOL *pBEnable);typedef HRESULT (WINAPI* MyDwmExtendFrameIntoClientArea)(HWND hWnd,const MARGINS *pMargins);typedef HRESULT (WINAPI* MyDwmEnableBlurBehindWindow)(HWND hWnd,const DWM_BLURBEHIND *pDWM_bulr);class QOwnAeroClass { private:QOwnAeroClass(void);~QOwnAeroClass(void);enum SysType{UNKNOW=0,WINME,WIN98,WIN2K,WINXP,VISTA,WIN7,};public://返回是否具有透明效果static bool IsCompositionEnabled();//取消透明效果static bool cancelAeroStyle(HWND hWnd);//設(shè)置全局透明效果static bool setAeroStyle(HWND hWnd,bool bFrame=true,int nPadding = 6, QRect* pNewRect = NULL);//獲取系統(tǒng)版本信息static SysType getSysVersion();//DWM接口static MyDwmIsCompositionEnabled m_MyDwmIsCompositionEnabledFun;static MyDwmExtendFrameIntoClientArea m_MyDwmExtendFrameIntoClientAreaFun;static MyDwmEnableBlurBehindWindow m_MyDwmEnableBlurBehindWindowFun;//初始化DWM接口static bool InitDwmPort();//接口dllstatic QLibrary m_DwnLib;private:}; #endif // QOWNAEROCLASS_H

QOwnAeroClass.cpp

#include "QOwnAeroClass.h" #include <QDebug>MyDwmIsCompositionEnabled QOwnAeroClass::m_MyDwmIsCompositionEnabledFun=NULL; MyDwmExtendFrameIntoClientArea QOwnAeroClass::m_MyDwmExtendFrameIntoClientAreaFun=NULL; MyDwmEnableBlurBehindWindow QOwnAeroClass::m_MyDwmEnableBlurBehindWindowFun=NULL;QLibrary QOwnAeroClass::m_DwnLib;QOwnAeroClass::QOwnAeroClass(void) { }QOwnAeroClass::~QOwnAeroClass(void) { } //初始化DWM接口，Theme接口 bool QOwnAeroClass::InitDwmPort() {m_MyDwmEnableBlurBehindWindowFun = NULL;m_MyDwmExtendFrameIntoClientAreaFun = NULL;m_MyDwmIsCompositionEnabledFun = NULL;if(m_DwnLib.isLoaded()){m_DwnLib.unload();}m_DwnLib.setFileName("Dwmapi.dll");if(!m_DwnLib.load())return false;m_MyDwmIsCompositionEnabledFun = (MyDwmIsCompositionEnabled)m_DwnLib.resolve("DwmIsCompositionEnabled");m_MyDwmExtendFrameIntoClientAreaFun = (MyDwmExtendFrameIntoClientArea)m_DwnLib.resolve("DwmExtendFrameIntoClientArea");m_MyDwmEnableBlurBehindWindowFun = (MyDwmEnableBlurBehindWindow)m_DwnLib.resolve("DwmEnableBlurBehindWindow");if(m_MyDwmEnableBlurBehindWindowFun == NULL ||m_MyDwmExtendFrameIntoClientAreaFun == NULL ||m_MyDwmIsCompositionEnabledFun == NULL){return false;}return true; } //返回是否具有透明效果 bool QOwnAeroClass::IsCompositionEnabled() {//return false;BOOL bCompEnabled = FALSE;SysType sysType;sysType = getSysVersion();if(sysType <VISTA)return false;if(m_MyDwmIsCompositionEnabledFun == NULL){if(!InitDwmPort()){qDebug() << "QOwnAeroClass::IsCompositionEnabled InitDWM fail!!!!";return false;}}m_MyDwmIsCompositionEnabledFun(&bCompEnabled);if(bCompEnabled){return true;}elsereturn false; } //取消透明效果 bool QOwnAeroClass::cancelAeroStyle(HWND hWnd) {if(::IsWindow(hWnd)){SysType sysType;sysType = getSysVersion();if(sysType < VISTA)return false;if(m_MyDwmExtendFrameIntoClientAreaFun == NULL|| m_MyDwmEnableBlurBehindWindowFun == NULL){if(!InitDwmPort()){qDebug() << "QOwnAeroClass::cancelAeroStyle InitDWM fail!!!!";return false;}}MARGINS margins = {0}; //將取消m_MyDwmExtendFrameIntoClientAreaFun(hWnd, &margins);//DWM_BLURBEHIND bb = {0};bb.dwFlags = DWM_BB_ENABLE /*| DWM_BB_BLURREGION*/;bb.fEnable = false;bb.hRgnBlur = NULL;m_MyDwmEnableBlurBehindWindowFun(hWnd, &bb);return true;}return false; } //設(shè)置全局透明效果 bool QOwnAeroClass::setAeroStyle(HWND hWnd,bool bFrame,int nPadding, QRect* pNewRect) {if(!::IsWindow(hWnd))return false;SysType sysType;sysType = getSysVersion();if(sysType <VISTA)return false;//先取消在設(shè)置cancelAeroStyle(hWnd);//全屏效果if(bFrame){if(m_MyDwmExtendFrameIntoClientAreaFun == NULL){if(!InitDwmPort()){qDebug() << "QOwnAeroClass::setAeroStyle InitDWM fail!!!!";return false;}}MARGINS margins = {-1}; //將效果m_MyDwmExtendFrameIntoClientAreaFun(hWnd, &margins);}//局部效果else{DWM_BLURBEHIND blurBehind = { 0 };blurBehind.dwFlags = DWM_BB_ENABLE | DWM_BB_BLURREGION;blurBehind.fEnable = true;//blurBehind.fTransitionOnMaximized = TRUE;RECT winRect,NewRect;::GetWindowRect(hWnd,&winRect);if(pNewRect != NULL){NewRect.top = nPadding;NewRect.left = nPadding;NewRect.bottom = pNewRect->height()-nPadding;NewRect.right = pNewRect->width()-nPadding;}else{NewRect.top = nPadding;NewRect.left = nPadding;NewRect.bottom = (winRect.bottom - winRect.top)-nPadding;NewRect.right = (winRect.right - winRect.left)-nPadding;}/*winRect.left += 6;winRect.top += 6;winRect.bottom -= 6;winRect.right -= 6;*/HRGN hRgn = ::CreateRectRgn(NewRect.left,NewRect.top,NewRect.right,NewRect.bottom); blurBehind.hRgnBlur = hRgn;m_MyDwmEnableBlurBehindWindowFun(hWnd,&blurBehind);}return true; }//獲取系統(tǒng)版本信息 QOwnAeroClass::SysType QOwnAeroClass::getSysVersion() {OSVERSIONINFO Version;ZeroMemory(&Version,sizeof(OSVERSIONINFO));Version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);GetVersionEx(&Version); if (Version.dwPlatformId==VER_PLATFORM_WIN32_NT) {if((Version.dwMajorVersion==5)&&(Version.dwMinorVersion==0)){return WIN2K;}else if((Version.dwMajorVersion==5)&&(Version.dwMinorVersion>0)){return WINXP;}else if((Version.dwMajorVersion==6)&&(Version.dwMinorVersion==0))return VISTA;else if((Version.dwMajorVersion>=6))return WIN7;}else if(Version.dwPlatformId==VER_PLATFORM_WIN32_WINDOWS){if ((Version.dwMajorVersion == 4) && (Version.dwMinorVersion < 90) ){return WIN98;}if ((Version.dwMajorVersion == 4) && (Version.dwMinorVersion >= 90) ){return WINME;}}return UNKNOW; }

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