54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
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'\" e
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'\"! eqn | mmdoc
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'\"macro stdmacro
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.ds Vn Version 1.2
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.ds Dt 6 March 1997
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.ds Re Release 1.2.0
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.ds Dp May 02 11:53
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.ds Dm 37 checkexte
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.ds Xs 16492 4 checkextension.gl
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.TH GLUCHECKEXTENSION 3G
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.SH NAME
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.B "gluCheckExtension
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\- determines if an extension name is supported
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.SH C SPECIFICATION
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GLboolean \f3gluCheckExtension\fP(
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const GLubyte \fI*extName\fP,
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.nf
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.ta \w'\f3GLboolean \fPgluCheckExtension( 'u
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const GLubyte \fI*extString\fP )
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.fi
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.SH PARAMETERS
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.TP \w'\fIextString\fP\ \ 'u
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\f2extName\fP
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Specifies an extension name.
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.TP
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\f2extString\fP
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Specifies a space-separated list of extension names supported.
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.SH DESCRIPTION
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\%\f3gluCheckExtension\fP returns \%\f3GL_TRUE\fP if \f2extName\fP is supported otherwise
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\%\f3GL_FALSE\fP is returned.
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.P
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This is used to check for the presence for OpenGL, GLU or GLX extension names
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by passing the extension strings returned by \f3glGetString\fP,
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\%\f3gluGetString\fP, \f3glXGetClientString\fP,
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\f3glXQueryExtensionsString\fP, or \f3glXQueryServerString\fP,
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respectively, as \f2extString\fP.
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.SH NOTES
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Cases where one extension name is a substring of another are
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correctly handled.
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.P
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There may or may not be leading or trailing blanks in \f2extString\fP.
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.P
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Extension names should not contain embedded spaces.
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.P
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All strings are null-terminated.
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.SH SEE ALSO
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\f3glGetString(3G)\fP,
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\%\f3gluGetString(3G)\fP,
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\f3glXGetClientString(3G)\fP,
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\f3glXQueryExtensionsString(3G)\fP,
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\f3glXQueryServerString(3G)\fP
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