详细的PCI-E信息，Windows
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我有一个项目，我需要从带有图形卡的计算机中收集信息，从1到12，它有。然后将此信息保存在云中以供以后使用。
我需要的是，至少是：
它是什么GPU多少内存它使用哪个PCI插槽，1,2,3等（或者它的名字）
Windows WMI似乎有一些信息，我一直在寻找不同的类，但似乎很难找到PCI-E插槽。有谁知道如何获取这些信息？
答案
你应该寻找PCI插槽我没有在字符串中看到任何PCI-E定义（并不意味着没有）。如果我只尝试"PCI"，结果会同时包含PCI和PCI-E设备。在BDS2006 C ++ / VCL中我只是通过更改匹配字符串来使用this（我很久以前就破坏了）：
//---------------------------------------------------------------------------
//$$---- Form CPP ----
//---------------------------------------------------------------------------
#include <vcl.h>
#include <setupapi.h>
#pragma hdrstop
#include "win_main.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TMain *Main;
//---------------------------------------------------------------------------
bool USBinfo()
{
int i,n;
AnsiString s,txt="";
DWORD dwSize,dwPropertyRegDataType;
HDEVINFO hDevInfo;
SP_DEVINFO_DATA DeviceInfoData;
TCHAR szDesc[1024];
// hDevInfo = SetupDiGetClassDevs(NULL, NULL, NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES); // List all devices
// hDevInfo = SetupDiGetClassDevs(NULL, TEXT("USB"), NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES); // List all connected USB devices
hDevInfo = SetupDiGetClassDevs(NULL, TEXT("PCI"), NULL, DIGCF_PRESENT|DIGCF_ALLCLASSES); // List all connected PCI devices
if (hDevInfo == INVALID_HANDLE_VALUE) return false;
// Find the ones that are driverless
for (i=0;;i++)
{
DeviceInfoData.cbSize = sizeof(DeviceInfoData);
if (!SetupDiEnumDeviceInfo(hDevInfo, i, &DeviceInfoData)) break;
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData, SPDRP_DEVICEDESC,&dwPropertyRegDataType, (BYTE*)szDesc,sizeof(szDesc),&dwSize);
s=szDesc; n=48; while (s.Length()<n) s+=" "; if (s.Length()>n) s=s.SubString(1,n); txt+=s+" ";
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData, SPDRP_HARDWAREID,&dwPropertyRegDataType, (BYTE*)szDesc,sizeof(szDesc),&dwSize);
s=szDesc; n=64; while (s.Length()<n) s+=" "; if (s.Length()>n) s=s.SubString(1,n); txt+=s+" ";
SetupDiGetDeviceRegistryProperty(hDevInfo, &DeviceInfoData, SPDRP_LOCATION_INFORMATION,&dwPropertyRegDataType, (BYTE*)szDesc,sizeof(szDesc),&dwSize);
s=szDesc; n=40; while (s.Length()<n) s+=" "; if (s.Length()>n) s=s.SubString(1,n); txt+=s+" ";
txt+="
";
}
Main->mm_log->Lines->Add(txt);
return true;
}
//-------------------------------------------------------------------------
__fastcall TMain::TMain(TComponent* Owner) : TForm(Owner)
{
USBinfo();
}
//-------------------------------------------------------------------------
这里是"PCI"字符串的示例输出：
PCI standard host CPU bridge PCIVEN_1022&DEV_1400&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 0
PCI standard host CPU bridge PCIVEN_1022&DEV_1401&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 1
PCI standard host CPU bridge PCIVEN_1022&DEV_1402&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 2
PCI standard host CPU bridge PCIVEN_1022&DEV_1403&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 3
PCI standard host CPU bridge PCIVEN_1022&DEV_1404&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 4
PCI standard host CPU bridge PCIVEN_1022&DEV_1405&SUBSYS_00000000&REV_00 PCI bus 0, device 24, function 5
PCI standard host CPU bridge PCIVEN_1022&DEV_1410&SUBSYS_14101022&REV_00 PCI bus 0, device 0, function 0
PCI Express standard Root Port PCIVEN_1022&DEV_1412&SUBSYS_12341022&REV_00 PCI bus 0, device 2, function 0
PCI Express standard Root Port PCIVEN_1022&DEV_1414&SUBSYS_12341022&REV_00 PCI bus 0, device 4, function 0
PCI Express standard Root Port PCIVEN_1022&DEV_1417&SUBSYS_12341022&REV_00 PCI bus 0, device 7, function 0
AMD IOMMU Device PCIVEN_1022&DEV_1419&SUBSYS_14191022&REV_00 PCI bus 0, device 0, function 2
AMD SATA Controller PCIVEN_1022&DEV_7801&SUBSYS_B0021458&REV_40 PCI bus 0, device 17, function 0
Standard OpenHCD USB Host Controller PCIVEN_1022&DEV_7807&SUBSYS_50041458&REV_11 PCI bus 0, device 18, function 0
Standard OpenHCD USB Host Controller PCIVEN_1022&DEV_7807&SUBSYS_50041458&REV_11 PCI bus 0, device 19, function 0
Standard Enhanced PCI to USB Host Controller PCIVEN_1022&DEV_7808&SUBSYS_50041458&REV_11 PCI bus 0, device 18, function 2
Standard Enhanced PCI to USB Host Controller PCIVEN_1022&DEV_7808&SUBSYS_50041458&REV_11 PCI bus 0, device 19, function 2
Standard OpenHCD USB Host Controller PCIVEN_1022&DEV_7809&SUBSYS_50041458&REV_11 PCI bus 0, device 20, function 5
AMD SMBus PCIVEN_1022&DEV_780B&SUBSYS_780B1022&REV_14 PCI bus 0, device 20, function 0
High Definition Audio Controller PCIVEN_1022&DEV_780D&SUBSYS_A0021458&REV_01 PCI bus 0, device 20, function 2
PCI standard ISA bridge PCIVEN_1022&DEV_780E&SUBSYS_780E1022&REV_11 PCI bus 0, device 20, function 3
PCI standard PCI-to-PCI bridge PCIVEN_1022&DEV_780F&SUBSYS_00000000&REV_40 PCI bus 0, device 20, function 4
AMD USB 3.0 Host Controller PCIVEN_1022&DEV_7812&SUBSYS_50041458&REV_03 PCI bus 0, device 16, function 0
AMD USB 3.0 Host Controller PCIVEN_1022&DEV_7812&SUBSYS_50041458&REV_03 PCI bus 0, device 16, function 1
High Definition Audio Controller PCIVEN_10DE&DEV_0BEE&SUBSYS_35371458&REV_A1 PCI bus 1, device 0, function 1
NVIDIA GeForce GTX 550 Ti PCIVEN_10DE&DEV_1244&SUBSYS_35371458&REV_A1 PCI bus 1, device 0, function 0
Realtek PCIe GBE Family Controller PCIVEN_10EC&DEV_8168&SUBSYS_E0001458&REV_06 PCI bus 2, device 0, function 0
MSI TV@Anywhere Plus PCIVEN_1131&DEV_7133&SUBSYS_62311462&REV_D1 PCI bus 4, device 6, function 0
Etron USB 3.0 Extensible Host Controller PCIVEN_1B6F&DEV_7023&SUBSYS_50071458&REV_01 PCI bus 3, device 0, function 0
只是忽略VCL的东西。重要的是USBinfo()功能（是的，我用它来获取USB信息）。它将枚举所有设备（如在设备管理器中）匹配您启动它的字符串（其中3个类似的第2行补救）。要清楚AnsiString是字符串类（元素是从[1]而不是[0]访问）和DWORD是无符号32位int。 Main->mm_log只是TMemo，我输出结果。别忘了包括setupapi.h
该界面可以获取您在Windows设备管理器中找到的任何信息，只需使用您需要的SPDRP_属性（它们在setupapi.h中列出，这是我的包含：
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