static quint64 getTickCount()
{
resolveLibs();
// This avoids a division by zero and disables the high performance counter if it's not available
if (counterFrequency > 0) {
LARGE_INTEGER counter;
if (QueryPerformanceCounter(&counter)) {
return counter.QuadPart;
} else {
qWarning("QueryPerformanceCounter failed, although QueryPerformanceFrequency succeeded.");
return 0;
}
}
#ifndef Q_OS_WINRT
if (ptrGetTickCount64)
return ptrGetTickCount64();
static quint32 highdword = 0;
static quint32 lastval = 0;
quint32 val = GetTickCount();
if (val < lastval)
++highdword;
lastval = val;
return val | (quint64(highdword) << 32);
#else // !Q_OS_WINRT
// ptrGetTickCount64 is always set on WinRT but GetTickCount is not available
return ptrGetTickCount64();
#endif // Q_OS_WINRT
}
/*!
* ExtendFrameIntoClientArea.
*
* This controls the rendering of the frame inside the window.
* Note that passing margins of -1 (the default value) will completely
* remove the frame from the window.
*
* \note you should not call enableBlurBehindWindow before calling
* this functions
*
* \a enable tells if the blur should be enabled or not
*/
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, right, top, bottom};
hr = pDwmExtendFrameIntoClientArea(widget->winId(), &m);
if (SUCCEEDED(hr)) {
result = true;
windowNotifier()->addWidget(widget);
}
widget->setAttribute(Qt::WA_TranslucentBackground, result);
}
#endif
return result;
}
QString QHostInfo::localDomainName()
{
resolveLibs();
if (ptrGetNetworkParams == NULL)
return QString(); // couldn't resolve
FIXED_INFO info, *pinfo;
ULONG bufSize = sizeof info;
pinfo = &info;
if (ptrGetNetworkParams(pinfo, &bufSize) == ERROR_BUFFER_OVERFLOW) {
pinfo = (FIXED_INFO *)malloc(bufSize);
if (!pinfo)
return QString();
// try again
if (ptrGetNetworkParams(pinfo, &bufSize) != ERROR_SUCCESS) {
free(pinfo);
return QString(); // error
}
}
QString domainName = QUrl::fromAce(pinfo->DomainName);
if (pinfo != &info)
free(pinfo);
return domainName;
}
QElapsedTimer::ClockType QElapsedTimer::clockType()
{
resolveLibs();
if (counterFrequency > 0)
return PerformanceCounter;
else
return TickCounter;
}
bool QSystemTrayIconSys::trayMessage(DWORD msg)
{
resolveLibs();
if (!(ptrShell_NotifyIcon))
return false;
QT_WA({
return trayMessageW(msg);
},
{
return trayMessageA(msg);
static QList<QNetworkInterfacePrivate *> interfaceListing()
{
resolveLibs();
if (ptrGetAdaptersAddresses != NULL)
return interfaceListingWinXP();
else if (ptrGetAdaptersInfo != NULL)
return interfaceListingWin2k();
// failed
return QList<QNetworkInterfacePrivate *>();
}
/*!
* 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;
}
/*!
* 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;
}
/*!
* 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;
}