%mathent; ]> 1991-2006 Silicon Graphics, Inc. 2010-2014 Khronos Group glIsEnabled 3G glIsEnabled test whether a capability is enabled C Specification GLboolean glIsEnabled GLenum cap Parameters cap Specifies a symbolic constant indicating a GL capability. index Specifies the index of the capability. Description glIsEnabled returns GL_TRUE if cap is an enabled capability and returns GL_FALSE otherwise. Initially all capabilities except GL_DITHER are disabled; GL_DITHER is initially enabled. The following capabilities are accepted for cap: Constant See GL_BLEND glBlendFunc GL_CULL_FACE glCullFace GL_DEPTH_TEST glDepthFunc, glDepthRangef GL_DITHER glEnable GL_POLYGON_OFFSET_FILL glPolygonOffset GL_PRIMITIVE_RESTART_FIXED_INDEX glEnable GL_SAMPLE_ALPHA_TO_COVERAGE glSampleCoverage GL_SAMPLE_COVERAGE glSampleCoverage GL_SCISSOR_TEST glScissor GL_STENCIL_TEST glStencilFunc, glStencilOp Notes If an error is generated, glIsEnabled returns GL_FALSE. Errors GL_INVALID_ENUM is generated if cap is not an accepted value. API Version Support glIsEnabled See Also glEnable, glDisable, glGet Copyright Copyright 1991-2006 Silicon Graphics, Inc. Copyright 2010-2014 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.