D3DXGetVertexShaderProfile function

Returns the name of the highest high-level shader language (HLSL) profile supported by a given device.

Syntax

LPCSTR D3DXGetVertexShaderProfile(
  _In_ LPDIRECT3DDEVICE9 pDevice
);

Parameters

pDevice [in]

Type: LPDIRECT3DDEVICE9

Pointer to the device. See IDirect3DDevice9.

Return value

Type: LPCSTR

The HLSL profile name.

If the device does not support vertex shaders then the function returns NULL.

Remarks

A shader profile specifies the assembly shader version to use and the capabilities available to the HLSL compiler when compiling a shader. The following table lists the vertex shader profiles that are supported.

Shader Profile	Description
vs_1_1	Compile to vs_1_1 version.
vs_2_0	Compile to vs_2_0 version.
vs_2_a	Same as the vs_2_0 profile, with the following additional capabilities available for the compiler to target: Number of Temporary Registers (r#) is greater than or equal to 13. Dynamic flow control instruction. Predication.
vs_3_0	Compile to vs_3_0 version.

 

For more information about the differences between shader versions, see Vertex Shader Differences.

Requirements

Requirement	Value
Header	D3DX9Shader.h
Library	D3dx9.lib

See also

Shader Functions