GLXQUERYDRAWABLE(3G) OpenGL Manual GLXQUERYDRAWABLE(3G)
NAME
glXQueryDrawable - returns an attribute assoicated with a GLX drawable
C SPECIFICATION
int glXQueryDrawable(Display * dpy, GLXDrawable draw, int attribute, unsigned int * value);
PARAMETERS
dpy
Specifies the connection to the X server.
draw
Specifies the GLX drawable to be queried.
attribute
Specifies the attribute to be returned. Must be one of GLX_WIDTH, GLX_HEIGHT, GLX_PRESERVED_CONTENTS, GLX_LARGEST_PBUFFER, or
GLX_FBCONFIG_ID.
value
Contains the return value for attribute.
DESCRIPTION
glXQueryDrawable sets value to the value of attribute with respect to the GLXDrawable draw.
attribute may be one of the following:
GLX_WIDTH
Returns the width of ctx.
GLX_HEIGHT
Returns the height of ctx.
GLX_PRESERVED_CONTENTS
Returns True if the contents of a GLXPbuffer are preserved when a resource conflict occurs; False otherwise.
GLX_LARGEST_PBUFFER
Returns the value set when glXCreatePbuffer was called to create the GLXPbuffer. If False is returned, then the call to
glXCreatePbuffer will fail to create a GLXPbuffer if the requested size is larger than the implementation maximum or available
resources. If True is returned, a GLXPbuffer of the maximum availble size (if less than the requested width and height) is created.
GLX_FBCONFIG_ID
Returns the XID for draw.
If draw is a GLXWindow or GLXPixmap and attribute is set to GLX_PRESERVED_CONTENTS or GLX_LARGETST_PBUFFER, the contents of value are
undefined. If attribute is not one of the attributes listed above, the contents of value are unedfined.
ERRORS
A GLXBadDrawable is generated if draw is not a valid GLXDrawable.
SEE ALSO
glXCreateWindow(), glXCreatePixmap(), glXCreatePbuffer(), glXGetFBConfigAttrib(), glXChooseFBConfig()
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 GLXQUERYDRAWABLE(3G)