修改為單例模式 及 當App啟動後通知使用者

AudioPlaybackConnector.cpp

@@ -8,6 +8,7 @@ winrt::fire_and_forget ConnectDevice(DevicePicker, std::wstring_view);
 void SetupDevicePicker();
 void SetupSvgIcon();
 void UpdateNotifyIcon();
+void ShowInitialToastNotification();
 
 int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
 	_In_opt_ HINSTANCE hPrevInstance,
@@ -20,6 +21,31 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
 
 	g_hInst = hInstance;
 
+	g_hMutex = CreateMutexW(NULL, TRUE, UNIQUE_MUTEX_NAME);
+	if (g_hMutex == NULL)
+	{
+		TaskDialog(nullptr, nullptr, _(L"Error"), nullptr, _(L"Could not create mutex. Application will exit."), TDCBF_OK_BUTTON, TD_ERROR_ICON, nullptr);
+		return EXIT_FAILURE;
+	}
+
+	if (GetLastError() == ERROR_ALREADY_EXISTS)
+	{
+		CloseHandle(g_hMutex); 
+		g_hMutex = NULL;       
+
+		HWND hExistingWnd = FindWindowW(L"AudioPlaybackConnector", nullptr); 
+		if (hExistingWnd)
+		{
+			SetForegroundWindow(hExistingWnd);
+			PostMessageW(hExistingWnd, WM_SHOW_DEVICEPICKER_FROM_OTHER_INSTANCE, 0, 0);
+		}
+		else
+		{
+			TaskDialog(nullptr, nullptr, _(L"Information"), nullptr, _(L"Another instance is running, but its window could not be found."), TDCBF_OK_BUTTON, TD_WARNING_ICON, nullptr);
+		}
+		return EXIT_SUCCESS;
+	}
+
 	winrt::init_apartment();
 
 	bool supported = false;
@@ -81,6 +107,8 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
 
 	PostMessageW(g_hWnd, WM_CONNECTDEVICE, 0, 0);
 
+	ShowInitialToastNotification();
+
 	MSG msg;
 	while (GetMessageW(&msg, nullptr, 0, 0))
 	{
@@ -117,8 +145,49 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 			SaveSettings();
 		}
 		Shell_NotifyIconW(NIM_DELETE, &g_nid);
+
+		if (g_hMutex)
+		{
+			ReleaseMutex(g_hMutex);
+			CloseHandle(g_hMutex);
+			g_hMutex = NULL;
+		}
+
 		PostQuitMessage(0);
 		break;
+	case WM_SHOW_DEVICEPICKER_FROM_OTHER_INSTANCE:
+	{
+		using namespace winrt::Windows::UI::Popups;
+		RECT iconRect;
+		HRESULT hr = Shell_NotifyIconGetRect(&g_niid, &iconRect);
+		if (FAILED(hr))
+		{
+			LOG_HR(hr);
+			ClientToScreen(hWnd, reinterpret_cast<POINT*>(&iconRect.left));
+			ClientToScreen(hWnd, reinterpret_cast<POINT*>(&iconRect.right));
+		}
+
+		auto dpi = GetDpiForWindow(hWnd);
+		Rect rect = {
+			static_cast<float>(iconRect.left * USER_DEFAULT_SCREEN_DPI / dpi),
+			static_cast<float>(iconRect.top * USER_DEFAULT_SCREEN_DPI / dpi),
+			static_cast<float>((iconRect.right - iconRect.left) * USER_DEFAULT_SCREEN_DPI / dpi),
+			static_cast<float>((iconRect.bottom - iconRect.top) * USER_DEFAULT_SCREEN_DPI / dpi)
+		};
+		if (IsRectEmpty(&iconRect) || FAILED(hr)) { 
+			rect = { 100.0f, 100.0f, 300.0f, 400.0f }; 
+		}
+
+		SetWindowPos(hWnd, HWND_TOPMOST, 0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), SWP_HIDEWINDOW); 
+		ShowWindow(hWnd, SW_SHOW); 
+		SetForegroundWindow(hWnd); 
+
+		if (g_devicePicker)
+		{
+			g_devicePicker.Show(rect, Placement::Above);
+		}
+	}
+		break;
 	case WM_SETTINGCHANGE:
 		if (lParam && CompareStringOrdinal(reinterpret_cast<LPCWCH>(lParam), -1, L"ImmersiveColorSet", -1, TRUE) == CSTR_EQUAL)
 		{
@@ -449,3 +518,61 @@ void UpdateNotifyIcon()
 		}
 	}
 }
+
+void ShowInitialToastNotification()
+{
+	try
+	{
+		std::wstring title = _(L"AudioPlaybackConnector");
+		std::wstring message = _(L"Application has started and is running in the notification area.");
+
+		std::wstring toastXmlString =
+			L"<toast activationType=\"protocol\" launch=\"audioplaybackconnector:show\">" 
+			L"<visual>"
+			L"<binding template=\"ToastGeneric\">"
+			L"<text>" + title + L"</text>"
+			L"<text>" + message + L"</text>"
+			L"</binding>"
+			L"</visual>"
+			L"</toast>";
+
+		XmlDocument toastXml;
+		toastXml.LoadXml(toastXmlString);
+
+		ToastNotifier notifier{ nullptr };
+		try {
+			notifier = ToastNotificationManager::CreateToastNotifier();
+		}
+		catch (winrt::hresult_error) {
+			LOG_CAUGHT_EXCEPTION();
+			wchar_t exePath[MAX_PATH];
+			GetModuleFileNameW(NULL, exePath, MAX_PATH);
+			std::wstring appId = exePath;
+			try {
+				notifier = ToastNotificationManager::CreateToastNotifier(appId);
+			}
+			catch (winrt::hresult_error) {
+				LOG_CAUGHT_EXCEPTION(); 
+			}
+		}
+
+		if (!notifier)
+		{
+			return;
+		}
+
+		ToastNotification toast(toastXml);
+
+		using namespace std::chrono;
+		toast.ExpirationTime(winrt::Windows::Foundation::DateTime::clock::now() + seconds(5));
+
+		notifier.Show(toast);
+	}
+	catch (winrt::hresult_error)
+	{
+
+	}
+	catch (std::exception)
+	{
+	}
+}

AudioPlaybackConnector.h

@@ -9,11 +9,17 @@ using namespace winrt::Windows::Media::Audio;
 using namespace winrt::Windows::UI::Xaml;
 using namespace winrt::Windows::UI::Xaml::Controls;
 using namespace winrt::Windows::UI::Xaml::Hosting;
+using namespace winrt::Windows::UI::Notifications;
+using namespace winrt::Windows::Data::Xml::Dom;
 namespace fs = std::filesystem;
 
 constexpr UINT WM_NOTIFYICON = WM_APP + 1;
 constexpr UINT WM_CONNECTDEVICE = WM_APP + 2;
+constexpr UINT WM_SHOW_DEVICEPICKER_FROM_OTHER_INSTANCE = WM_APP + 3;
 
+const WCHAR UNIQUE_MUTEX_NAME[] = L"{019730ef-fcc8-7f5a-94b3-8b77d764a65f}";
+
+HANDLE g_hMutex = nullptr;
 HINSTANCE g_hInst;
 HWND g_hWnd;
 HWND g_hWndXaml;
@@ -41,4 +47,4 @@ std::vector<std::wstring> g_lastDevices;
 #include "Util.hpp"
 #include "I18n.hpp"
 #include "SettingsUtil.hpp"
-#include "Direct2DSvg.hpp"
+#include "Direct2DSvg.hpp"

AudioPlaybackConnector.vcxproj

@@ -40,58 +40,58 @@
     <Keyword>Win32Proj</Keyword>
     <ProjectGuid>{2daaabdd-2402-4023-bc3e-b6e93fad567b}</ProjectGuid>
     <RootNamespace>AudioPlaybackConnector</RootNamespace>
-    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsTargetPlatformVersion>10.0.22621.0</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v142</PlatformToolset>
+    <PlatformToolset>v143</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
   </PropertyGroup>

pch.h

@@ -50,5 +50,7 @@
 #include <winrt/Windows.UI.Xaml.Hosting.h>
 #include <windows.ui.xaml.hosting.desktopwindowxamlsource.h>
 #include <winrt/Windows.UI.Xaml.Markup.h>
+#include <winrt/Windows.UI.Notifications.h>
+#include <winrt/Windows.Data.Xml.Dom.h>
 
 #endif //PCH_H