Index for Section 3

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glXCopyContext()
NAME
  glXCopyContext - copy state from one rendering context to another

SYNOPSIS
  void glXCopyContext(
	  Display *dpy,
	  GLXContext src,
	  GLXContext dst,
	  unsigned long mask );

PARAMETERS
  dpy Specifies the connection to the X server.

  src Specifies the source context.

  dst Specifies the destination context.

  mask
      Specifies which portions of src state are to be copied to dst.

DESCRIPTION
  glXCopyContext() copies selected groups of state variables from src to dst.
  mask indicates which groups of state variables are to be copied.  mask
  contains the bitwise OR of the same symbolic names that are passed to the
  GL command glPushAttrib(). The single symbolic constant GL_ALL_ATTRIB_BITS
  can be used to copy the maximum possible portion of rendering state.

  The copy can be done only if the renderers named by src and dst share an
  address space.  Two rendering contexts share an address space if both are
  nondirect using the same server, or if both are direct and owned by a
  single process. Note that in the nondirect case it is not necessary for the
  calling threads to share an address space, only for their related rendering
  contexts to share an address space.

  Not all values for GL state can be copied. For example, pixel pack and
  unpack state, render mode state, and select and feedback state are not
  copied.  The state that can be copied is exactly the state that is
  manipulated by the GL command glPushAttrib().

  An implicit glFlush() is done by glXCopyContext() if src is the current
  context for the calling thread.

NOTES
  A process is a single execution environment, implemented in a single
  address space, consisting of one or more threads.

  A thread is one of a set of subprocesses that share a single address space,
  but maintain separate program counters, stack spaces, and other related
  global data. A thread that is the only member of its subprocess group is
  equivalent to a process.

ERRORS
  BadMatch is generated if rendering contexts src and dst do not share an
  address space or were not created with respect to the same screen.

  BadAccess is generated if dst is current to any thread (including the
  calling thread) at the time glXCopyContext() is called.

  GLXBadCurrentWindow is generated if src is the current context and the
  current drawable is a window that is no longer valid.

  GLXBadContext is generated if either src or dst is not a valid GLX context.

SEE ALSO
  glPushAttrib(3), glXCreateContext(3), glXIsDirect(3)

Index for Section 3

Alphabetical listing for G

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