1991-2006 Silicon Graphics, Inc. glXQueryDrawable 3G 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 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/.