D3D11CreateDevice function

Creates a device that represents the display adapter.

Syntax

HRESULT D3D11CreateDevice(
  _In_   IDXGIAdapter *pAdapter,
  _In_   D3D_DRIVER_TYPE DriverType,
  _In_   HMODULE Software,
  _In_   UINT Flags,
  _In_   const D3D_FEATURE_LEVEL *pFeatureLevels,
  _In_   UINT FeatureLevels,
  _In_   UINT SDKVersion,
  _Out_  ID3D11Device **ppDevice,
  _Out_  D3D_FEATURE_LEVEL *pFeatureLevel,
  _Out_  ID3D11DeviceContext **ppImmediateContext
);

Parameters

pAdapter [in]

Type: IDXGIAdapter*

A pointer to the video adapter to use when creating a device. Pass NULL to use the default adapter, which is the first adapter that is enumerated by IDXGIFactory1::EnumAdapters.

Note  Do not mix the use of DXGI 1.0 (IDXGIFactory) and DXGI 1.1 (IDXGIFactory1) in an application. Use IDXGIFactory or IDXGIFactory1, but not both in an application.

DriverType [in]

Type: D3D_DRIVER_TYPE

The D3D_DRIVER_TYPE, which represents the driver type to create.

Software [in]

Type: HMODULE

A handle to a DLL that implements a software rasterizer. If DriverType is D3D_DRIVER_TYPE_SOFTWARE, Software must not be NULL. Get the handle by calling LoadLibrary, LoadLibraryEx , or GetModuleHandle.

Flags [in]

Type: UINT

The runtime layers to enable (see D3D11_CREATE_DEVICE_FLAG); values can be bitwise OR'd together.

pFeatureLevels [in]

Type: const D3D_FEATURE_LEVEL*

A pointer to an array of D3D_FEATURE_LEVELs, which determine the order of feature levels to attempt to create. If pFeatureLevels is set to NULL, this function uses the following array of feature levels:

Copy

{
    D3D_FEATURE_LEVEL_11_0,
    D3D_FEATURE_LEVEL_10_1,
    D3D_FEATURE_LEVEL_10_0,
    D3D_FEATURE_LEVEL_9_3,
    D3D_FEATURE_LEVEL_9_2,
    D3D_FEATURE_LEVEL_9_1,
};
          

Note  If the Direct3D 11.1 runtime is present on the computer and pFeatureLevels is set to NULL, this function won't create a D3D_FEATURE_LEVEL_11_1 device. To create a D3D_FEATURE_LEVEL_11_1 device, you must explicitly provide a D3D_FEATURE_LEVEL array that includes D3D_FEATURE_LEVEL_11_1. If you provide a D3D_FEATURE_LEVEL array that contains D3D_FEATURE_LEVEL_11_1 on a computer that doesn't have the Direct3D 11.1 runtime installed, this function immediately fails with E_INVALIDARG.

FeatureLevels [in]

Type: UINT

The number of elements in pFeatureLevels.

SDKVersion [in]

Type: UINT

The SDK version; use D3D11_SDK_VERSION.

ppDevice [out]

Type: ID3D11Device**

Returns the address of a pointer to an ID3D11Device object that represents the device created.

pFeatureLevel [out]

Type: D3D_FEATURE_LEVEL*

If successful, returns the first D3D_FEATURE_LEVEL from the pFeatureLevels array which succeeded. Otherwise, returns 0.

ppImmediateContext [out]

Type: ID3D11DeviceContext**

Returns the address of a pointer to an ID3D11DeviceContext object that represents the device context.

Return value

Type: HRESULT

This method returns one of the Direct3D 11 Return Codes.

Remarks

This entry-point is supported by the Direct3D 11 runtime, which is available on Windows 7, Windows Server 2008 R2, and as an update to Windows Vista (KB971644).

Set ppDevice and ppImmediateContext to NULL to determine which feature level is supported by looking at pFeatureLevel without creating a device.

For an example, see How To: Create a Device and Immediate Context; to create a device and a swap chain at the same time, use D3D11CreateDeviceAndSwapChain.

If you set the pAdapter parameter to a non-NULL value, you must also set the DriverType parameter to the D3D_DRIVER_TYPE_UNKNOWN value. If you set the pAdapter parameter to a non-NULL value and the DriverType parameter to the D3D_DRIVER_TYPE_HARDWARE value, D3D11CreateDevice returns an HRESULT of E_INVALIDARG.

Windows Phone 8: This API is supported.

Requirements

See also

Core Functions

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Build date: 11/28/2012