Gsk.GLShader.get_arg_vec4

### Method

# Gsk GLShaderget_arg_vec4

#### Declaration [src]

    void
    gsk_gl_shader_get_arg_vec4 (
      GskGLShader* shader,
      GBytes* args,
      int idx,
      graphene_vec4_t* out_value
    )

#### Description [src]

Gets the value of the uniform `idx` in the `args` block.

The uniform must be of vec4 type.

#### Parameters

`args` | `GBytes`
| Uniform arguments.
| The data is owned by the caller of the function.
`idx` | `int`
| Index of the uniform.
`out_value` | `graphene_vec4_t`
| Location to store set the uniform value in.
| The data is owned by the caller of the function.