Added source code

DocSystem · Oct 26, 2020 · 3d118a4 · 3d118a4
1 parent 9c5b0b5
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diff --git a/micmutetokey.cpp b/micmutetokey.cpp
@@ -0,0 +1,209 @@
+#include <windows.h>
+#include <stdio.h>
+
+#include <mmdeviceapi.h>
+#include <devicetopology.h>
+#include <WinUser.h>
+
+HRESULT WalkTreeBackwardsFromPart(IPart* pPart);
+HRESULT DisplayMute(IAudioMute* pMute);
+
+int MuteStatus{ 0 };
+
+int getMicrophoneMuteStatus() {
+    HRESULT hr = CoInitialize(NULL);
+    if (FAILED(hr)) {
+        printf("Failed CoInitializeEx: hr = 0x%08x\n", hr);
+        return __LINE__;
+    }
+
+    // get default render endpoint
+    IMMDeviceEnumerator* pEnum = NULL;
+    hr = CoCreateInstance(
+        __uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, __uuidof(IMMDeviceEnumerator),
+        (void**)&pEnum
+    );
+    if (FAILED(hr)) {
+        printf("Couldn't get device enumerator: hr = 0x%08x\n", hr);
+        CoUninitialize();
+        return __LINE__;
+    }
+    IMMDevice* pDevice = NULL;
+    hr = pEnum->GetDefaultAudioEndpoint(eRender, eConsole, &pDevice);
+    if (FAILED(hr)) {
+        printf("Couldn't get default render device: hr = 0x%08x\n", hr);
+        pEnum->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pEnum->Release();
+
+    // get device topology object for that endpoint
+    IDeviceTopology* pDT = NULL;
+    hr = pDevice->Activate(__uuidof(IDeviceTopology), CLSCTX_ALL, NULL, (void**)&pDT);
+    if (FAILED(hr)) {
+        printf("Couldn't get device topology object: hr = 0x%08x\n", hr);
+        pDevice->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pDevice->Release();
+
+    // get the single connector for that endpoint
+    IConnector* pConnEndpoint = NULL;
+    hr = pDT->GetConnector(0, &pConnEndpoint);
+    if (FAILED(hr)) {
+        printf("Couldn't get the connector on the endpoint: hr = 0x%08x\n", hr);
+        pDT->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pDT->Release();
+
+    // get the connector on the device that is
+    // connected to
+    // the connector on the endpoint
+    IConnector* pConnDevice = NULL;
+    hr = pConnEndpoint->GetConnectedTo(&pConnDevice);
+    if (FAILED(hr)) {
+        printf("Couldn't get the connector on the device: hr = 0x%08x\n", hr);
+        pConnEndpoint->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pConnEndpoint->Release();
+
+    // QI on the device's connector for IPart
+    IPart* pPart = NULL;
+    hr = pConnDevice->QueryInterface(__uuidof(IPart), (void**)&pPart);
+    if (FAILED(hr)) {
+        printf("Couldn't get the part: hr = 0x%08x\n", hr);
+        pConnDevice->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pConnDevice->Release();
+
+    // all the real work is done in this function
+    MuteStatus = 0;
+    hr = WalkTreeBackwardsFromPart(pPart);
+    if (FAILED(hr)) {
+        printf("Couldn't walk the tree: hr = 0x%08x\n", hr);
+        pPart->Release();
+        CoUninitialize();
+        return __LINE__;
+    }
+    pPart->Release();
+
+    CoUninitialize();
+
+    return hr;
+}
+
+HRESULT WalkTreeBackwardsFromPart(IPart* pPart) {
+    HRESULT hr = S_OK;
+
+    LPWSTR pwszPartName = NULL;
+    hr = pPart->GetName(&pwszPartName);
+    //printf("Part name: %ws\n", *pwszPartName ? pwszPartName : L"(Unnamed)");
+    CoTaskMemFree(pwszPartName);
+
+    // see if this is a mute node part
+    IAudioMute* pMute = NULL;
+    hr = pPart->Activate(CLSCTX_ALL, __uuidof(IAudioMute), (void**)&pMute);
+    if (E_NOINTERFACE == hr) {
+        // not a mute node
+    }
+    else if (FAILED(hr)) {
+        printf("Unexpected failure trying to activate IAudioMute: hr = 0x%08x\n", hr);
+        return hr;
+    }
+    else {
+        // it's a mute node...
+        hr = DisplayMute(pMute);
+        if (FAILED(hr)) {
+            printf("DisplayMute failed: hr = 0x%08x", hr);
+            pMute->Release();
+            return hr;
+        }
+        if (hr == 1) {
+            MuteStatus = 1;
+        }
+        pMute->Release();
+    }
+
+    // get the list of incoming parts
+    IPartsList* pIncomingParts = NULL;
+    hr = pPart->EnumPartsIncoming(&pIncomingParts);
+    if (E_NOTFOUND == hr) {
+        // not an error... we've just reached the end of the path
+        // printf("No incoming parts at this part\n");
+        return S_OK;
+    }
+    if (FAILED(hr)) {
+        printf("Couldn't enum incoming parts: hr = 0x%08x\n", hr);
+        return hr;
+    }
+    UINT nParts = 0;
+    hr = pIncomingParts->GetCount(&nParts);
+    if (FAILED(hr)) {
+        printf("Couldn't get count of incoming parts: hr = 0x%08x\n", hr);
+        pIncomingParts->Release();
+        return hr;
+    }
+
+    // walk the tree on each incoming part recursively
+    for (UINT n = 0; n < nParts; n++) {
+        IPart* pIncomingPart = NULL;
+        hr = pIncomingParts->GetPart(n, &pIncomingPart);
+
+        hr = WalkTreeBackwardsFromPart(pIncomingPart);
+        pIncomingPart->Release();
+    }
+
+    pIncomingParts->Release();
+
+    return MuteStatus;
+}
+
+
+HRESULT DisplayMute(IAudioMute* pMute) {
+    HRESULT hr = S_OK;
+    BOOL bMuted = FALSE;
+    hr = pMute->GetMute(&bMuted);
+
+    if (FAILED(hr)) {
+        printf("GetMute failed: hr = 0x%08x\n", hr);
+        return hr;
+    }
+
+    return bMuted ? 1 : 0;
+}
+
+
+int main()
+{
+    ShowWindow(GetConsoleWindow(), SW_HIDE);
+    int currentMicMuteStatus = getMicrophoneMuteStatus();
+    int oldCurrentMicMuteStatus = currentMicMuteStatus;
+    while (true)
+    {
+        Sleep(10);
+        oldCurrentMicMuteStatus = currentMicMuteStatus;
+        currentMicMuteStatus = getMicrophoneMuteStatus();
+        if (oldCurrentMicMuteStatus != currentMicMuteStatus)
+        {
+            INPUT inp;
+            inp.type = INPUT_KEYBOARD;
+            inp.ki.wScan = 0;
+            inp.ki.time = 0;
+            inp.ki.dwExtraInfo = 0;
+            inp.ki.wVk = 0x82; // virtual-key code for the "f19" key
+            inp.ki.dwFlags = 0; // 0 for key press
+            SendInput(1, &inp, sizeof(INPUT));
+            inp.ki.dwFlags = KEYEVENTF_KEYUP;
+            SendInput(1, &inp, sizeof(INPUT));
+        }
+    }
+    return 0;
+}
diff --git a/micmutetokey.sln b/micmutetokey.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30503.244
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "micmutetokey", "micmutetokey.vcxproj", "{681BA3D1-E526-46AF-82BF-3708B7508333}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Debug|x64.ActiveCfg = Debug|x64
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Debug|x64.Build.0 = Debug|x64
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Debug|x86.ActiveCfg = Debug|Win32
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Debug|x86.Build.0 = Debug|Win32
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Release|x64.ActiveCfg = Release|x64
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Release|x64.Build.0 = Release|x64
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Release|x86.ActiveCfg = Release|Win32
+		{681BA3D1-E526-46AF-82BF-3708B7508333}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {959D599B-F6AE-433E-82F8-ECDC878E5B55}
+	EndGlobalSection
+EndGlobal
diff --git a/micmutetokey.vcxproj b/micmutetokey.vcxproj
@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{681ba3d1-e526-46af-82bf-3708b7508333}</ProjectGuid>
+    <RootNamespace>micmutetokey</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
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+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="micmutetokey.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>