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76 lines
3.2 KiB
Plaintext
76 lines
3.2 KiB
Plaintext
{{QBDLDATE:05-20-2022}}
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{{QBDLTIME:23:20:05}}
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'''_glGetString:''' return a string describing the current GL connection
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{{PageSyntax}}
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FUNCTION _glGetString&& (BYVAL name AS _UNSIGNED LONG)
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const GLubyte* '''_glGetString'''(GLenum {{Parameter|name}});
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const GLubyte* '''_glGetStringi'''(GLenum {{Parameter|name}}, GLuint {{Parameter|index}});
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; name
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: Specifies a symbolic constant, one of {{KW|_GL_VENDOR}}, {{KW|_GL_RENDERER}}, {{KW|_GL_VERSION}}, or {{KW|_GL_SHADING_LANGUAGE_VERSION}}. Additionally, '''_glGetStringi''' accepts the {{KW|_GL_EXTENSIONS}} token.
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; index
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: For '''_glGetStringi''', specifies the index of the string to return.
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{{PageDescription}}
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'''_glGetString''' returns a pointer to a static string describing some aspect of the current GL connection. {{Parameter|name}} can be one of the following:
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; {{KW|_GL_VENDOR}}
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:
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Returns the company responsible for this GL implementation. This name does not change from release to release.
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; {{KW|_GL_RENDERER}}
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:
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Returns the name of the renderer. This name is typically specific to a particular configuration of a hardware platform. It does not change from release to release.
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; {{KW|_GL_VERSION}}
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:
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Returns a version or release number.
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; {{KW|_GL_SHADING_LANGUAGE_VERSION}}
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:
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Returns a version or release number for the shading language.
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Strings {{KW|_GL_VENDOR}} and {{KW|_GL_RENDERER}} together uniquely specify a platform. They do not change from release to release and should be used by platform-recognition algorithms.
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'''_glGetStringi''' returns a pointer to a static string indexed by {{Parameter|index}}. {{Parameter|name}} can be one of the following:
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; {{KW|_GL_EXTENSIONS}}
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: For '''_glGetStringi''' only, returns the extension string supported by the implementation at {{Parameter|index}}. The index {{Parameter|index}} is on the range [0 to {{KW|_glGet|Integerv(GL_NUM_EXTENSIONS)}} - 1].
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; {{KW|_GL_SHADING_LANGUAGE_VERSION}}
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: Returns one of the versions of [[GLSL]] supported by this implementation. {{Parameter|index}} is on the range [0 to {{KW|_glGet|Integerv(GL_NUM_SHADING_LANGUAGE_VERSIONS)}} - 1].
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The {{KW|_GL_VERSION}} and {{KW|_GL_SHADING_LANGUAGE_VERSION}} strings begin with a version number. The version number uses one of these forms:
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''major_number.minor_number''
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or
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''major_number.minor_number.release_number''
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Vendor-specific information may follow the version number. Its format depends on the implementation, but a space always separates the version number and the vendor-specific information.
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All strings are null-terminated.
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{{PageNotes}}
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If an error is generated, '''_glGetString''' returns 0.
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The client and server may support different versions. '''_glGetString''' always returns a compatible version number. The release number always describes the server.
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{{PageErrors}}
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{{KW|_GL_INVALID_ENUM}} is generated if {{Parameter|name}} is not an accepted value.
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{{KW|_GL_INVALID_VALUE}} is generated by '''_glGetStringi''' if {{Parameter|index}} is outside the valid range for indexed state {{Parameter|name}}.
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{{PageCopyright}}
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Copyright 1991-2006 Silicon Graphics, Inc. Copyright 2010 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see [http://oss.sgi.com/projects/FreeB/ http://oss.sgi.com/projects/FreeB/].
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