GLXQUERYCONTEXTINFOEXT() GLXQUERYCONTEXTINFOEXT()
NAME
glXQueryContextInfoEXT - query context information
C SPECIFICATION
int glXQueryContextInfoEXT( Display *dpy,
GLXContext ctx,
int attribute,
int *value )
delim $$
PARAMETERS
dpy Specifies the connection to the X server.
ctx Specifies a GLX rendering context.
attribute The visual ID that the context was created with.
value The X screen the the context was created for.
_param5 The context with which this context shares display lists. or NULL if this context does not share display lists.
DESCRIPTION
glXQueryContextInfoEXT returns the the visual id, screen number, and share list of ctx. This call may cause a round trip to the server.
glXQueryContextInfoEXT is part of the EXT_import_context extension, not part of the core GLX command set. If GLX_EXT_import_context is
included in the string returned by glXQueryExtensionsString, when called with argument GLX_EXTENSIONS, extension EXT_import_context is sup-
ported.
ERRORS
GLXBadContext is generated if ctx does not refer to a valid context.
SEE ALSO
glXCreateContext, glXQueryVersion, glXQueryExtensionsString
GLXQUERYCONTEXTINFOEXT()
Check Out this Related Man Page
GLXQUERYCONTEXTINFOE(3G) OpenGL Manual GLXQUERYCONTEXTINFOE(3G)NAME
glXQueryContextInfoEXT - query context information
C SPECIFICATION
int glXQueryContextInfoEXT(Display * dpy, GLXContext ctx, int attribute, int * value);
PARAMETERS
dpy
Specifies the connection to the X server.
ctx
Specifies a GLX rendering context.
attribute
Specifies that a context parameter should be retrieved. Must be one of GLX_SHARED_CONTEXT_EXT, GLX_VISUAL_ID_EXT, or GLX_SCREEN_EXT.
value
Contains the return value for attribute.
DESCRIPTION
glXQueryContextInfoEXT sets value to the value of attribute with respect to ctx. glXQueryContextInfoEXT returns an error code if it fails
for any reason. Otherwise, Success is returned.
attribute may be one of the following:
GLX_SHARED_CONTEXT_EXT
Returns the XID of the share list context associated with ctx at its creation.
GLX_VISUAL_ID_EXT
Returns the XID of the GLX Visual associated with ctx.
GLX_SCREEN_EXT
Returns the screen number associated with ctx.
This call may cause a round-trip to the server.
glXQueryContextInfoEXT is part of the EXT_import_context extension, not part of the core GLX command set. If
_glxextstring(EXT_import_context) is included in the string returned by glXQueryExtensionsString(), when called with argument
GLX_EXTENSIONS, extension EXT_import_context is supported.
ERRORS
GLXBadContext is generated if ctx does not refer to a valid context.
GLX_BAD_ATTRIBUTE is returned if attribute is not a valid GLX context attribute.
fred GLX_BAD_CONTEXT is returned if attribute is not a valid context.
SEE ALSO
glXCreateContext(), glXQueryVersion(), glXQueryExtensionsString()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLXQUERYCONTEXTINFOE(3G)
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