glXQueryContextInfoEXT()

NAME

glXQueryContextInfoEXT − query context information

SYNOPSIS

int glXQueryContextInfoEXT(
        Display ∗dpy,
        GLXContext ctx,
        int attribute,
        int ∗value );

PARAMETERS

dpySpecifies the connection to the X server.

ctxSpecifies 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 supported.

ERRORS

GLXBadContext is generated if ctx does not refer to a valid context.