Qt制作Aero特效窗口
转载请注明链接与作者huihui1988
初学QT,边看书边自己做点小东西。最近突然心血来潮,想自己做个小巧点的,界面美观一点的备忘当桌面上。想了半天,发现VISTA/WIN7的Aero效果就不错,况且自己现在就在用WIN7。于是上网找了下QT制作Aero效果的方法。Google之后终于找到了函数和用法。于是做了一个简单的Aero特效窗口
- //qtwin.h
- #ifndef QTWIN_H
- #define QTWIN_H
- #include <QColor>
- #include <QWidget>
- class WindowNotifier;
- class QtWin
- {
- public:
- static bool enableAeroWindow(QWidget *widget, bool enable = true);
- static bool extendFrameIntoClientArea(QWidget *widget,
- int left = -1, int top = -1,
- int right = -1, int bottom = -1);
- static bool isCompositionEnabled();
- static QColor colorizatinColor();
- private:
- static WindowNotifier *windowNotifier();
- };
- #endif // QTWIN_H
- //qtwin.cpp
- #include "qtwin.h"
- #include <QLibrary>
- #include <QApplication>
- #include <QWidget>
- #include <QList>
- #include <QPointer>
- #ifdef Q_WS_WIN
- #include <qt_windows.h>
- // Blur behind data structures
- #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 specified
- #define WM_DWMCOMPOSITIONCHANGED 0x031E // Composition changed window message
- typedef struct _DWM_BLURBEHIND
- {
- DWORD dwFlags;
- BOOL fEnable;
- HRGN hRgnBlur;
- BOOL fTransitionOnMaximized;
- } DWM_BLURBEHIND, *PDWM_BLURBEHIND;
- typedef struct _MARGINS
- {
- int cxLeftWidth;
- int cxRightWidth;
- int cyTopHeight;
- int cyBottomHeight;
- } MARGINS, *PMARGINS;
- typedef HRESULT (WINAPI *PtrDwmIsCompositionEnabled)(BOOL* pfEnabled);
- typedef HRESULT (WINAPI *PtrDwmExtendFrameIntoClientArea)(HWND hWnd, const MARGINS* pMarInset);
- typedef HRESULT (WINAPI *PtrDwmenableAeroWindow)(HWND hWnd, const DWM_BLURBEHIND* pBlurBehind);
- typedef HRESULT (WINAPI *PtrDwmGetColorizationColor)(DWORD *pcrColorization, BOOL *pfOpaqueBlend);
- static PtrDwmIsCompositionEnabled pDwmIsCompositionEnabled= 0;
- static PtrDwmenableAeroWindow pDwmenableAeroWindow = 0;
- static PtrDwmExtendFrameIntoClientArea pDwmExtendFrameIntoClientArea = 0;
- static PtrDwmGetColorizationColor pDwmGetColorizationColor = 0;
- /*
- *同步响应DWM状态消息
- */
- class WindowNotifier : public QWidget
- {
- public:
- WindowNotifier() { winId(); }
- void addWidget(QWidget *widget) { widgets.append(widget); }
- void removeWidget(QWidget *widget) { widgets.removeAll(widget); }
- bool winEvent(MSG *message, long *result);
- private:
- QWidgetList widgets;
- };
- static bool resolveLibs()
- {
- if (!pDwmIsCompositionEnabled) {
- QLibrary dwmLib(QString::fromAscii("dwmapi"));
- pDwmIsCompositionEnabled =(PtrDwmIsCompositionEnabled)dwmLib.resolve("DwmIsCompositionEnabled");
- pDwmExtendFrameIntoClientArea = (PtrDwmExtendFrameIntoClientArea)dwmLib.resolve("DwmExtendFrameIntoClientArea");
- pDwmenableAeroWindow = (PtrDwmenableAeroWindow)dwmLib.resolve("DwmenableAeroWindow");
- pDwmGetColorizationColor = (PtrDwmGetColorizationColor)dwmLib.resolve("DwmGetColorizationColor");
- }
- return pDwmIsCompositionEnabled != 0;
- }
- #endif
- /*!
- * 检查 DWM 是否开启
- *
- */
- bool QtWin::isCompositionEnabled()
- {
- #ifdef Q_WS_WIN
- if (resolveLibs()) {
- HRESULT hr = S_OK;
- BOOL isEnabled = false;
- hr = pDwmIsCompositionEnabled(&isEnabled);
- if (SUCCEEDED(hr))
- return isEnabled;
- }
- #endif
- return false;
- }
- /*!
- * 对一个widget实现Aero效果.
- *
- */
- bool QtWin::enableAeroWindow(QWidget *widget, bool enable)
- {
- Q_ASSERT(widget);
- bool result = false;
- #ifdef Q_WS_WIN
- if (resolveLibs()) {
- DWM_BLURBEHIND bb = {0};
- HRESULT hr = S_OK;
- bb.fEnable = enable;
- bb.dwFlags = DWM_BB_ENABLE;
- bb.hRgnBlur = NULL;
- widget->setAttribute(Qt::WA_TranslucentBackground, enable);
- widget->setAttribute(Qt::WA_NoSystemBackground, enable);
- hr = pDwmenableAeroWindow(widget->winId(), &bb);
- if (SUCCEEDED(hr)) {
- result = true;
- windowNotifier()->addWidget(widget);
- }
- }
- #endif
- return result;
- }
- /*!
- * 设置Aero绘图区
- */
- bool QtWin::extendFrameIntoClientArea(QWidget *widget, int left, int top, int right, int bottom)
- {
- Q_ASSERT(widget);
- Q_UNUSED(left);
- Q_UNUSED(top);
- Q_UNUSED(right);
- Q_UNUSED(bottom);
- bool result = false;
- #ifdef Q_WS_WIN
- if (resolveLibs()) {
- QLibrary dwmLib(QString::fromAscii("dwmapi"));
- HRESULT hr = S_OK;
- MARGINS m = {left, top, right, bottom};
- hr = pDwmExtendFrameIntoClientArea(widget->winId(), &m);
- if (SUCCEEDED(hr)) {
- result = true;
- windowNotifier()->addWidget(widget);
- }
- widget->setAttribute(Qt::WA_TranslucentBackground, result);
- }
- #endif
- return result;
- }
- /*!
- * 返回当前窗口颜色.
- */
- QColor QtWin::colorizatinColor()
- {
- QColor resultColor = QApplication::palette().window().color();
- #ifdef Q_WS_WIN
- if (resolveLibs()) {
- DWORD color = 0;
- BOOL opaque = FALSE;
- QLibrary dwmLib(QString::fromAscii("dwmapi"));
- HRESULT hr = S_OK;
- hr = pDwmGetColorizationColor(&color, &opaque);
- if (SUCCEEDED(hr))
- resultColor = QColor(color);
- }
- #endif
- return resultColor;
- }
- #ifdef Q_WS_WIN
- WindowNotifier *QtWin::windowNotifier()
- {
- static WindowNotifier *windowNotifierInstance = 0;
- if (!windowNotifierInstance)
- windowNotifierInstance = new WindowNotifier;
- return windowNotifierInstance;
- }
- /* 所有窗口响应 DWM 状态变换消息 */
- bool WindowNotifier::winEvent(MSG *message, long *result)
- {
- if (message && message->message == WM_DWMCOMPOSITIONCHANGED) {
- bool compositionEnabled = QtWin::isCompositionEnabled();
- foreach(QWidget * widget, widgets) {
- if (widget) {
- widget->setAttribute(Qt::WA_NoSystemBackground, compositionEnabled);
- }
- widget->update();
- }
- }
- return QWidget::winEvent(message, result);
- }
- #endif
- 使用的时候只需要在生成窗口的main.cpp中#include "qtwin.h",并使用相关函数,以下是main.cpp文件:
- #include <QtGui/QApplication>
- #include "widget.h"
- #include "qtwin.h"
- int main(int argc, char *argv[])
- {
- QApplication a(argc, argv);
- Widget window;
- window.setGeometry(1040,0,240,120);
- window.setWindowFlags(Qt::CustomizeWindowHint);
- #ifdef Q_WS_X11
- window.setAttribute(Qt::WA_TranslucentBackground);
- window.setAttribute(Qt::WA_NoSystemBackground, false);
- QPalette pal = window.palette();
- QColor bg = pal.window().color();
- bg.setAlpha(180);
- pal.setColor(QPalette::Window, bg);
- window.setPalette(pal);
- window.ensurePolished(); // workaround Oxygen filling the background
- window.setAttribute(Qt::WA_StyledBackground, false);
- #endif
- if (QtWin::isCompositionEnabled()) {
- QtWin::extendFrameIntoClientArea(&window);
- window.setContentsMargins(0, 0, 0, 0);
- }
- window.show();
- return a.exec();
- }
http://blog.csdn.net/huihui1988/article/details/5601497
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