C++获取GPU显卡信息的示例代码
更新时间:2024年02月04日 09:49:19 作者:草上爬
这篇文章主要为大家详细介绍了如何使用C++获取GPU显卡信息,文中的示例代码讲解详细,具有一定的借鉴价值,有需要的小伙伴可以参考一下
C++获取GPU显卡信息
#include <Windows.h> #include <iostream> #include <DXGI.h> #include <vector> using namespace std; std::string WStringToString(const std::wstring &wstr) { std::string str(wstr.length(), ' '); std::copy(wstr.begin(), wstr.end(), str.begin()); return str; } int main() { // 参数定义 IDXGIFactory * pFactory; IDXGIAdapter * pAdapter; std::vector <IDXGIAdapter*> vAdapters; // 显卡 // 显卡的数量 int iAdapterNum = 0; // 创建一个DXGI工厂 HRESULT hr = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)(&pFactory)); if (FAILED(hr)) return -1; // 枚举适配器 while (pFactory->EnumAdapters(iAdapterNum, &pAdapter) != DXGI_ERROR_NOT_FOUND) { vAdapters.push_back(pAdapter); ++iAdapterNum; } // 信息输出 cout << "===============获取到" << iAdapterNum << "块显卡===============" << endl; for (size_t i = 0; i < vAdapters.size(); i++) { // 获取信息 DXGI_ADAPTER_DESC adapterDesc; vAdapters[i]->GetDesc(&adapterDesc); wstring aa(adapterDesc.Description); std::string bb = WStringToString(aa); // 输出显卡信息 cout << "系统视频内存:" << adapterDesc.DedicatedSystemMemory / 1024 / 1024 << "M" << endl; cout << "专用视频内存:" << adapterDesc.DedicatedVideoMemory / 1024 / 1024 << "M" << endl; cout << "共享系统内存:" << adapterDesc.SharedSystemMemory / 1024 / 1024 << "M" << endl; cout << "设备描述:" << bb.c_str()<< endl; cout << "设备ID:" << adapterDesc.DeviceId << endl; cout << "PCI ID修正版本:" << adapterDesc.Revision << endl; cout << "子系统PIC ID:" << adapterDesc.SubSysId << endl; cout << "厂商编号:" << adapterDesc.VendorId << endl; // 输出设备 IDXGIOutput * pOutput; std::vector<IDXGIOutput*> vOutputs; // 输出设备数量 int iOutputNum = 0; while (vAdapters[i]->EnumOutputs(iOutputNum, &pOutput) != DXGI_ERROR_NOT_FOUND) { vOutputs.push_back(pOutput); iOutputNum++; } cout << "-----------------------------------------" << endl; cout << "获取到" << iOutputNum << "个显示设备:" << endl; cout << endl; for (size_t n = 0; n < vOutputs.size(); n++) { // 获取显示设备信息 DXGI_OUTPUT_DESC outputDesc; vOutputs[n]->GetDesc(&outputDesc); // 获取设备支持 UINT uModeNum = 0; DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM; UINT flags = DXGI_ENUM_MODES_INTERLACED; vOutputs[n]->GetDisplayModeList(format, flags, &uModeNum, 0); DXGI_MODE_DESC * pModeDescs = new DXGI_MODE_DESC[uModeNum]; vOutputs[n]->GetDisplayModeList(format, flags, &uModeNum, pModeDescs); cout << "显示设备名称:" << outputDesc.DeviceName << endl; cout << "显示设备当前分辨率:" << outputDesc.DesktopCoordinates.right - outputDesc.DesktopCoordinates.left << "*" << outputDesc.DesktopCoordinates.bottom - outputDesc.DesktopCoordinates.top << endl; cout << endl; // 所支持的分辨率信息 cout << "分辨率信息:" << endl; for (UINT m = 0; m < uModeNum; m++) { cout << "== 分辨率:" << pModeDescs[m].Width << "*" << pModeDescs[m].Height << " 刷新率" << (pModeDescs[m].RefreshRate.Numerator) / (pModeDescs[m].RefreshRate.Denominator) << endl; } } vOutputs.clear(); } vAdapters.clear(); system("pause"); return 0; }
在链接器中加入DXGI.lib
如果没安装显驱动,无法获取GPU信息。
知识补充
C++获取设备显示信息
/************************************************************************ FileName:main.cpp Descript:获取显卡信息 Author:绝望的老猫 Date:2012/12/23 ************************************************************************/ #include <Windows.h> #include <iostream> #include <DXGI.h> #include <vector> using namespace std; int main() { // 参数定义 IDXGIFactory * pFactory; IDXGIAdapter * pAdapter; std::vector <IDXGIAdapter*> vAdapters; // 显卡 // 显卡的数量 int iAdapterNum = 0; // 创建一个DXGI工厂 HRESULT hr = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)(&pFactory) ); if (FAILED(hr)) return -1; // 枚举适配器 while(pFactory->EnumAdapters(iAdapterNum, &pAdapter) != DXGI_ERROR_NOT_FOUND) { vAdapters.push_back(pAdapter); ++iAdapterNum; } // 信息输出 cout<<"===============获取到"<<iAdapterNum<<"块显卡==============="<<endl; for (size_t i=0;i<vAdapters.size(); i++) { // 获取信息 DXGI_ADAPTER_DESC adapterDesc; vAdapters[i]->GetDesc(&adapterDesc); // 输出显卡信息 cout<<"系统视频内存:"<<adapterDesc.DedicatedSystemMemory/1024/1024<<"M"<<endl; cout<<"专用视频内存:"<<adapterDesc.DedicatedVideoMemory/1024/1024<<"M"<<endl; cout<<"共享系统内存:"<<adapterDesc.SharedSystemMemory/1024/1024<<"M"<<endl; cout<<"设备描述:"<<adapterDesc.Description<<endl; cout<<"设备ID:"<<adapterDesc.DeviceId<<endl; cout<<"PCI ID修正版本:"<<adapterDesc.Revision<<endl; cout<<"子系统PIC ID:"<<adapterDesc.SubSysId<<endl; cout<<"厂商编号:"<<adapterDesc.VendorId<<endl; // 输出设备 IDXGIOutput * pOutput; std::vector<IDXGIOutput*> vOutputs; // 输出设备数量 int iOutputNum = 0; while(vAdapters[i]->EnumOutputs(iOutputNum,&pOutput)!= DXGI_ERROR_NOT_FOUND) { vOutputs.push_back(pOutput); iOutputNum++; } cout<<"-----------------------------------------"<<endl; cout<<"获取到"<<iOutputNum<<"个显示设备:"<<endl; cout<<endl; for (size_t n=0;n<vOutputs.size();n++) { // 获取显示设备信息 DXGI_OUTPUT_DESC outputDesc; vOutputs[n]->GetDesc(&outputDesc); // 获取设备支持 UINT uModeNum = 0; DXGI_FORMAT format = DXGI_FORMAT_R8G8B8A8_UNORM; UINT flags = DXGI_ENUM_MODES_INTERLACED; vOutputs[n]->GetDisplayModeList( format, flags, &uModeNum, 0); DXGI_MODE_DESC * pModeDescs = new DXGI_MODE_DESC[uModeNum]; vOutputs[n]->GetDisplayModeList( format, flags, &uModeNum, pModeDescs); cout<<"显示设备名称:"<<outputDesc.DeviceName<<endl; cout<<"显示设备当前分辨率:"<<outputDesc.DesktopCoordinates.right-outputDesc.DesktopCoordinates.left <<"*"<<outputDesc.DesktopCoordinates.bottom-outputDesc.DesktopCoordinates.top<<endl; cout<<endl; // 所支持的分辨率信息 cout<<"分辨率信息:"<<endl; for (UINT m=0;m<uModeNum;m++) { cout<<"== 分辨率:"<<pModeDescs[m].Width<<"*"<<pModeDescs[m].Height<<" 刷新率"<<(pModeDescs[m].RefreshRate.Numerator)/(pModeDescs[m].RefreshRate.Denominator)<<endl; } } vOutputs.clear(); } vAdapters.clear(); system("pause"); return 0; }
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