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glXGetClientString

Chapter 7

186

glXGetClientString

glXGetClientString: return a string describing the client.

C Speciﬁcation

constchar *glXGetClientString(

Display *dpy,

int name)

Parameters

dpy Speciﬁes the connection to the X server.

name Speciﬁes which string is returned. One of GLX_VENDOR,

GLX_VERSION, or GLX_EXTENSIONS.

Description

glXGetClientString returns a string describing some aspect of the client library. The

possible values for name are GLX_VENDOR, GLX_VERSION, and GLX_EXTENSIONS.

If name is not set to one of these values, glXGetClientString returns NULL. The format

and contents of the vendor string is implementation dependent.

The extensions string is null-terminated and contains a space-separated list of extension

names. (The extension names never contain spaces.) If there are no extensions to GLX,

then the empty string is returned.

The version string is laid out as follows:

<major_version.minor_version><space><vendor-speciﬁc_info >

Both the major and minor portions of the version number are of arbitrary length. The

vendor-speciﬁc information is optional. However, if it is present, the format and contents

are implementation speciﬁc.

Notes

glXGetClientString is available only if the GLX version is 1.1 or greater.

If the GLX version is 1.1 or 1.0, the GL version must be 1.0. If the GLX version is 1.2,

then the GL version must be 1.1.

glXGetClientString only returns information about GLX extensions supported by the

client. Call glGetString to get a list of GL extensions supported by the server.

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