DirectX 9 get the Adapter info

最新推荐文章于 2021-09-15 16:07:00 发布

原创最新推荐文章于 2021-09-15 16:07:00 发布 · 749 阅读

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本文介绍如何使用 DirectX9 API 获取计算机中安装的所有显卡适配器的信息，包括适配器的描述、驱动程序版本等，并通过示例代码展示了如何枚举这些适配器。

1. In DirectX 9, the adpater means One Display Card & One Moniter, the concept is difference with DirectX 10 's DXGI

code:

#include <d3d9.h>

LPDIRECT3D9 g_pD3D = NULL; //Direct3D对象

HRESULT InitD3D()
{
//创建Direct3D对象, 该对象用来创建Direct3D设备对象
if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
return E_FAIL;

UINT cnt = g_pD3D->GetAdapterCount();

printf("Adapter Count %d\n", cnt);

for(UINT i = 0; i < cnt; ++i)
{
D3DADAPTER_IDENTIFIER9 adpInfo;
g_pD3D->GetAdapterIdentifier(i, 0, &adpInfo);

printf("info of adapter(%d):\n", i+1);
printf("\tDriver[%s]\n", adpInfo.Driver);
printf("\tDescription[%s]\n", adpInfo.Description);
printf("\tDevName[%s]\n", adpInfo.DeviceName);
printf("\tVendorId[%d]\n", adpInfo.VendorId);
printf("\tDriverVersion[%d]\n", adpInfo.DriverVersion);
//printf("\tDeviceIdentifier[%s]\n", adpInfo.DeviceIdentifier);

}
return S_OK;
}

#include <vector>
class AdapterInfo
{
public:
typedef std::vector<D3DADAPTER_IDENTIFIER9> ADAPTER_INFO;

AdapterInfo(LPDIRECT3D9 pD3D)
:m_pD3D(pD3D)
{
this->Init();
}
~AdapterInfo(){}

int Init()
{
UINT cnt = m_pD3D->GetAdapterCount();

for(UINT i = 0; i < cnt; ++i)
{
D3DADAPTER_IDENTIFIER9 adpInfo;
if(D3D_OK == m_pD3D->GetAdapterIdentifier(i, 0, &adpInfo))
{
m_infos.push_back(adpInfo);
}
else
{
return -1;
}
}
return 0;
}

unsigned int GetAdapterCount()
{
return m_infos.size();
}

const AdapterInfo::ADAPTER_INFO & GetInfo()
{
return m_infos;
}

private:
LPDIRECT3D9 m_pD3D;

ADAPTER_INFO m_infos;
};

HRESULT TestGetInfo()
{
//创建Direct3D对象, 该对象用来创建Direct3D设备对象
if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
return E_FAIL;

AdapterInfo info(g_pD3D);

unsigned int cnt = info.GetAdapterCount();
printf("Adapter Count %d\n", cnt);

for(unsigned int i = 0; i < cnt; ++i)
{
const D3DADAPTER_IDENTIFIER9 & adpInfo = info.GetInfo()[i];

printf("info of adapter(%d):\n", i+1);
printf("\tDriver[%s]\n", adpInfo.Driver);
printf("\tDescription[%s]\n", adpInfo.Description);
printf("\tDevName[%s]\n", adpInfo.DeviceName);
printf("\tVendorId[%d]\n", adpInfo.VendorId);
printf("\tDriverVersion[%d]\n", adpInfo.DriverVersion);
}
return S_OK;
}

int _tmain(int argc, _TCHAR* argv[])
{

TestGetInfo();

getchar();

return 0;
}