获取本机所有显卡的信息--代码

我相信有人需要这个。

 

1.     HDEVINFO hDevInfo = NULL;
2.     DWORD dwIndex = 1;
3.     SP_DEVINFO_DATA DevInfo_data;
6.     ZeroMemory(&DevInfo_data, sizeof(SP_DEVINFO_DATA));
7.     DevInfo_data.cbSize = sizeof(SP_DEVINFO_DATA);
9.     hDevInfo = SetupDiGetClassDevs(
10.         (LPGUID) &GUID_DEVCLASS_DISPLAY,
11.         0, // Enumerator
12.         0,
13.         DIGCF_PRESENT
14.     );
16.     if (hDevInfo == INVALID_HANDLE_VALUE)
17.     {
18.         return;
19.     }
21.     for (int i = 0; SetupDiEnumDeviceInfo(hDevInfo, i, &DevInfo_data); i++)
22.     {
23.         DWORD DataT;
24.         LPTSTR buffer = NULL;
25.         DWORD buffersize = 0;
26.         CString strFinder;
28.         while (!SetupDiGetDeviceRegistryProperty(
29.             hDevInfo,
30.             &DevInfo_data,
31.             SPDRP_DEVICEDESC,
32.             &DataT,
33.             (PBYTE)buffer,
34.             buffersize,
35.             &buffersize)
36.         )
37.         {
38.             if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
39.             {
40.                 // Change the buffer size.
41.                 if (buffer) 
42.                     LocalFree(buffer);
43.                 buffer = (LPTSTR)LocalAlloc(LPTR, buffersize); //这里已经取得显卡的名字
44.             }
45.             else
46.             {
47.                 if (buffer) 
48.                     LocalFree(buffer);
50.                 break;
51.             }
52.         }
55.         if (buffer) 
56.             LocalFree(buffer);
57.     }
59.     return;