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PointerDevice 類別

定義

支援識別已連線指標裝置並判斷其功能的能力。

public ref class PointerDevice sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.None)]
class PointerDevice final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.None)]
public sealed class PointerDevice
Public NotInheritable Class PointerDevice
繼承
Object Platform::Object IInspectable PointerDevice
屬性

Windows 需求

裝置系列
Windows 10 (已於 10.0.10240.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v1.0 引進)

範例

下列程式碼示範如何使用 PointerDevice。

/// <summary> 
/// Invoked when this page is about to be displayed in a Frame. 
/// </summary> 
/// <param name="e">Event data that describes how this page was reached.  The Parameter 
/// property is typically used to configure the page.</param> 
protected override void OnNavigatedTo(NavigationEventArgs e) 
{ 
    string Buffer; 

    Buffer = "List of all pointer devices: \n\n"; 

    var PointerDeviceList = Windows.Devices.Input.PointerDevice.GetPointerDevices(); 
    int displayIndex = 1; 

    foreach (Windows.Devices.Input.PointerDevice PointerDevice in PointerDeviceList) 
    { 
        Buffer += string.Format("Pointer device " + displayIndex + ":\n"); 
        Buffer += string.Format("This pointer device type is " + 
            PointerType(PointerDevice) + "\n"); 
        Buffer += string.Format("This pointer device is " + 
            (PointerDevice.IsIntegrated ? "not " : "") + "external\n"); 
        Buffer += string.Format("This pointer device has a maximum of " + 
            PointerDevice.MaxContacts + " contacts\n"); 
        Buffer += string.Format("The physical device rect is " + 
            PointerDevice.PhysicalDeviceRect.X.ToString() + ", " + 
            PointerDevice.PhysicalDeviceRect.Y.ToString() + ", " + 
            PointerDevice.PhysicalDeviceRect.Width.ToString() + ", " + 
            PointerDevice.PhysicalDeviceRect.Height.ToString() + "\n"); 
        Buffer += string.Format("The screen rect is " + 
            PointerDevice.ScreenRect.X.ToString() + ", " + 
            PointerDevice.ScreenRect.Y.ToString() + ", " + 
            PointerDevice.ScreenRect.Width.ToString() + ", " + 
            PointerDevice.ScreenRect.Height.ToString() + "\n\n"); 
    }  
    PointerOutputTextBlock.Text = Buffer; 
}
#include <sstream>
#include <winrt/Windows.Devices.Input.h>
#include <winrt/Windows.Foundation.Collections.h>
#include <winrt/Windows.UI.Xaml.Controls.h>
using namespace winrt;
using namespace Windows::Devices::Input;
using namespace Windows::UI::Xaml::Controls;

...

void PointerGetSettings_Click(Windows::Foundation::IInspectable const& sender, Windows::UI::Xaml::RoutedEventArgs const& args)
{
    auto b{ sender.try_as<Button>() };
    if (b)
    {
        Windows::Foundation::Collections::IVectorView<PointerDevice> pointerDeviceList{ PointerDevice::GetPointerDevices() };
        std::wostringstream buffer;

        for (uint32_t i = 0; i < pointerDeviceList.Size(); i++)
        {
            winrt::hstring displayIndex{ winrt::to_hstring(i + 1) };
            buffer << L"Pointer device " << displayIndex.c_str() << std::endl;
            buffer << L"This pointer device type is ";

            switch (pointerDeviceList.GetAt(i).PointerDeviceType())
            {
            case PointerDeviceType::Mouse:
                buffer << L"Mouse" << std::endl;
                break;
            case PointerDeviceType::Pen:
                buffer << L"Pen" << std::endl;
                break;
            case PointerDeviceType::Touch:
                buffer << L"Touch" << std::endl;
                break;
            default:
                buffer << L"unknown" << std::endl;
            }

            buffer << L"This pointer device is " << (pointerDeviceList.GetAt(i).IsIntegrated() ? L"not " : L"") << L"external" << std::endl;
            buffer << L"This pointer device has a maximum of " << pointerDeviceList.GetAt(i).MaxContacts() << L" contacts" << std::endl;
            buffer << L"The physical device rect is " <<
                pointerDeviceList.GetAt(i).PhysicalDeviceRect().X << L", " <<
                pointerDeviceList.GetAt(i).PhysicalDeviceRect().Y << L", " <<
                pointerDeviceList.GetAt(i).PhysicalDeviceRect().Width << L", " <<
                pointerDeviceList.GetAt(i).PhysicalDeviceRect().Height << std::endl;
            buffer << L"The screen rect is " <<
                pointerDeviceList.GetAt(i).ScreenRect().X << L", " <<
                pointerDeviceList.GetAt(i).ScreenRect().Y << L", " <<
                pointerDeviceList.GetAt(i).ScreenRect().Width << L", " <<
                pointerDeviceList.GetAt(i).ScreenRect().Height << std::endl << std::endl;
        }

        PointerOutputTextBlock().Text(buffer.str());
    }
}
void SDKSample::DeviceCaps::Pointer::PointerGetSettings_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e) 
{ 
    Button^ b = safe_cast<Button^>(sender); 
    if (b != nullptr) 
    { 
        Windows::Foundation::Collections::IVectorView<PointerDevice^>^ PointerDeviceList = PointerDevice::GetPointerDevices(); 
        Platform::String^ Buffer; 

        for (unsigned i = 0; i < PointerDeviceList->Size; i++) { 
            Platform::String^ displayIndex = (i + 1).ToString(); 
            Buffer += "Pointer device " + displayIndex + ":\n"; 
            Buffer += "This pointer device type is " + PointerType(PointerDeviceList->GetAt(i)) + "\n"; 
            Buffer += "This pointer device is " + (PointerDeviceList->GetAt(i)->IsIntegrated ? "not " : "") + "external\n"; 
            Buffer += "This pointer device has a maximum of " + PointerDeviceList->GetAt(i)->MaxContacts.ToString() + " contacts\n"; 
            Buffer += "The physical device rect is " + 
                PointerDeviceList->GetAt(i)->PhysicalDeviceRect.X.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->PhysicalDeviceRect.Y.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->PhysicalDeviceRect.Width.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->PhysicalDeviceRect.Height.ToString() + "\n"; 
            Buffer += "The screen rect is " + 
                PointerDeviceList->GetAt(i)->ScreenRect.X.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->ScreenRect.Y.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->ScreenRect.Width.ToString() + ", " + 
                PointerDeviceList->GetAt(i)->ScreenRect.Height.ToString() + "\n\n"; 
        } 

        PointerOutputTextBlock->Text = Buffer; 
    } 
}

備註

此處所討論屬性所傳回的值是以連線的指標裝置總數為基礎:如果某個裝置支援特定功能,布林值屬性會傳回 true,而數值屬性會傳回所有裝置所公開的最大值。

裝置功能範例示範如何偵測輸入裝置是否存在,以及擷取每個裝置的功能和屬性。

注意

這個類別不是敏捷的,這表示您必須考慮其執行緒模型和封送處理行為。 如需詳細資訊,請參閱執行緒和封送處理 (C++/CX) 在多執行緒環境中使用 Windows 執行階段 物件 (.NET)

屬性

IsIntegrated

取得值,指出指標裝置是否為整合式裝置。 例如,與外部手寫筆/手寫筆數位板相比,具有整合式觸控數位板的視訊顯示器。

MaxContacts

取得值,指出輸入裝置所支援的連絡人數目上限。

MaxPointersWithZDistance

取得輸入裝置支援的暫留連絡人數目上限。

PhysicalDeviceRect

取得輸入裝置所支援周框的座標。

PointerDeviceType

取得指標裝置類型。

ScreenRect

取得對應至輸入裝置所支援周框的螢幕座標。

SupportedUsages

取得集合,其中包含支援的 指標裝置使用方式

方法

GetPointerDevice(UInt32)

取得與指定輸入指標識別碼相關聯的指標裝置相關資訊。

GetPointerDevices()

取得附加至系統之指標裝置的相關資訊。

適用於

另請參閱