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glxquerydrawable(3g) [centos man page]

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)

Check Out this Related Man Page

GLXQUERYCONTEXT(3G)						   OpenGL Manual					       GLXQUERYCONTEXT(3G)

NAME

       glXQueryContext - query context information

C SPECIFICATION

       int glXQueryContext(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_FBCONFIG_ID, GLX_RENDER_TYPE, or GLX_SCREEN.

       value
	   Contains the return value for attribute.

DESCRIPTION

       glXQueryContext sets value to the value of attribute with respect to ctx.  attribute may be one of the following:

       GLX_FBCONFIG_ID
	   Returns the XID of the GLXFBConfig associated with ctx.

       GLX_RENDER_TYPE
	   Returns the rendering type supported by ctx.

       GLX_SCREEN
	   Returns the screen number associated with ctx.

       Success is returned unless attribute is not a valid GLX context attribute, in which case GLX_BAD_ATTRIBUTE is returned.

       This call may cause a round-trip to the server.

NOTES

       glXQueryContext is available only if the GLX version is 1.3 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. If the GLX
       version is 1.3, then the GL version must be 1.2.

ERRORS

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

SEE ALSO

       glXCreateNewContext(), glXGetCurrentContext(), 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						       GLXQUERYCONTEXT(3G)
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