diff options
author | Denis Dzyubenko <denis.dzyubenko@nokia.com> | 2010-06-11 12:36:34 +0200 |
---|---|---|
committer | Jason McDonald <jason.mcdonald@nokia.com> | 2010-06-30 11:26:47 +1000 |
commit | d7513a5994c734ed48e95ec55d1abd9147c75405 (patch) | |
tree | fe28b2acd0813b3eaecd765831f9b3727ea49a56 | |
parent | fd75bec667e011c0700e0e6bcd45ff2fc29beb8d (diff) |
Changed the way we detect touch screen on Windows.
Instead of using the IInkTablets interface (which sometimes freezes in the
get_Count() call for 10 seconds), we just check if there is digitizer support.
Task-number: QTBUG-6007
Reviewed-by: Prasanth
(cherry picked from commit 7f338180e88b71e793069e2fbe9a70f3c434e126)
-rw-r--r-- | src/gui/kernel/qapplication_win.cpp | 36 | ||||
-rw-r--r-- | src/gui/kernel/qwinnativepangesturerecognizer_win_p.h | 32 |
2 files changed, 36 insertions, 32 deletions
diff --git a/src/gui/kernel/qapplication_win.cpp b/src/gui/kernel/qapplication_win.cpp index cf28893f35..610dec52e4 100644 --- a/src/gui/kernel/qapplication_win.cpp +++ b/src/gui/kernel/qapplication_win.cpp @@ -118,8 +118,6 @@ extern void qt_wince_hide_taskbar(HWND hwnd); //defined in qguifunctions_wince.c # include <winable.h> #endif -#include "private/qwinnativepangesturerecognizer_win_p.h" - #ifndef WM_TOUCH # define WM_TOUCH 0x0240 @@ -4069,36 +4067,10 @@ PtrCloseTouchInputHandle QApplicationPrivate::CloseTouchInputHandle = 0; void QApplicationPrivate::initializeMultitouch_sys() { - static const IID QT_IID_IInkTablets = {0x112086D9, 0x7779, 0x4535, {0xA6, 0x99, 0x86, 0x2B, 0x43, 0xAC, 0x18, 0x63} }; - static const IID QT_IID_IInkTablet2 = {0x90c91ad2, 0xfa36, 0x49d6, {0x95, 0x16, 0xce, 0x8d, 0x57, 0x0f, 0x6f, 0x85} }; - static const CLSID QT_CLSID_InkTablets = {0x6E4FCB12, 0x510A, 0x4d40, {0x93, 0x04, 0x1D, 0xA1, 0x0A, 0xE9, 0x14, 0x7C} }; - - IInkTablets *iInkTablets = 0; - HRESULT hr = CoCreateInstance(QT_CLSID_InkTablets, NULL, CLSCTX_ALL, QT_IID_IInkTablets, (void**)&iInkTablets); - if (SUCCEEDED(hr)) { - long count = 0; - iInkTablets->get_Count(&count); - for (long i = 0; i < count; ++i) { - IInkTablet *iInkTablet = 0; - hr = iInkTablets->Item(i, &iInkTablet); - if (FAILED(hr)) - continue; - IInkTablet2 *iInkTablet2 = 0; - hr = iInkTablet->QueryInterface(QT_IID_IInkTablet2, (void**)&iInkTablet2); - iInkTablet->Release(); - if (FAILED(hr)) - continue; - TabletDeviceKind kind; - hr = iInkTablet2->get_DeviceKind(&kind); - iInkTablet2->Release(); - if (FAILED(hr)) - continue; - if (kind == TDK_Touch) { - QApplicationPrivate::HasTouchSupport = true; - break; - } - } - iInkTablets->Release(); + if (QSysInfo::windowsVersion() >= QSysInfo::WV_WINDOWS7) { + static const int QT_SM_DIGITIZER = 94; + QApplicationPrivate::HasTouchSupport = GetSystemMetrics(QT_SM_DIGITIZER); + qDebug() << "QApplicationPrivate::HasTouchSupport " << QApplicationPrivate::HasTouchSupport; } QLibrary library(QLatin1String("user32")); diff --git a/src/gui/kernel/qwinnativepangesturerecognizer_win_p.h b/src/gui/kernel/qwinnativepangesturerecognizer_win_p.h index 64addeb2de..eb99b74567 100644 --- a/src/gui/kernel/qwinnativepangesturerecognizer_win_p.h +++ b/src/gui/kernel/qwinnativepangesturerecognizer_win_p.h @@ -54,6 +54,38 @@ // #include <QGestureRecognizer> +#include <objbase.h> + +class IInkRectangle; +class TabletHardwareCapabilities; +class TabletPropertyMetricUnit; +DECLARE_INTERFACE_(IInkTablet, IDispatch) +{ + STDMETHOD(get_Name)(THIS_ BSTR *Name) PURE; + STDMETHOD(get_PlugAndPlayId)(THIS_ BSTR *Id) PURE; + STDMETHOD(get_MaximumInputRectangle)(THIS_ IInkRectangle **Rectangle) PURE; + STDMETHOD(get_HardwareCapabilities)(THIS_ TabletHardwareCapabilities *Capabilities) PURE; + STDMETHOD(IsPacketPropertySupported)(THIS_ BSTR packetPropertyName) PURE; + STDMETHOD(GetPropertyMetrics)(THIS_ BSTR propertyName, long *Minimum, long *Maximum, TabletPropertyMetricUnit *Units, float *Resolution) PURE; +}; +enum TabletDeviceKind +{ + TDK_Mouse = 0, + TDK_Pen = 1, + TDK_Touch = 2 +}; +DECLARE_INTERFACE_(IInkTablet2, IDispatch) +{ + STDMETHOD(get_DeviceKind)(THIS_ TabletDeviceKind *Kind) PURE; +}; +DECLARE_INTERFACE_(IInkTablets, IDispatch) +{ + STDMETHOD(get_Count)(THIS_ long *Count) PURE; + STDMETHOD(get__NewEnum)(THIS_ IUnknown **_NewEnum) PURE; + STDMETHOD(get_DefaultTablet)(THIS_ IInkTablet **DefaultTablet) PURE; + STDMETHOD(Item)(THIS_ long Index, IInkTablet **Tablet) PURE; + STDMETHOD(IsPacketPropertySupported)(THIS_ BSTR packetPropertyName, VARIANT_BOOL *Supported) PURE; +}; #include <objbase.h> |