Index for Section 3G

Alphabetical listing for G

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glFlush(3G)
NAME
  glFlush - force execution of GL commands in finite time

SYNOPSIS
  void glFlush(
	  void );

DESCRIPTION
  Different GL implementations buffer commands in several different
  locations, including network buffers and the graphics accelerator itself.
  glFlush() empties all of these buffers, causing all issued commands to be
  executed as quickly as they are accepted by the actual rendering engine.
  Though this execution may not be completed in any particular time period,
  it does complete in finite time.

  Because any GL program might be executed over a network, or on an
  accelerator that buffers commands, all programs should call glFlush()
  whenever they count on having all of their previously issued commands
  completed.  For example, call glFlush() before waiting for user input that
  depends on the generated image.

NOTES
  glFlush() can return at any time. It does not wait until the execution of
  all previously issued GL commands is complete.

ERRORS
  GL_INVALID_OPERATION is generated if glFlush() is executed between the
  execution of glBegin() and the corresponding execution of glEnd().

SEE ALSO
  glFinish(3)

Index for Section 3G

Alphabetical listing for G

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