GLboolean rese )

PARAMETERS
       target  Must be GL_MINMAX.

       rese    If  GL_TRUE,  all  entries in the minmax table that are actually
               returned are reset to their initial values.  (Other entries  are
               unaltered.)  If GL_FALSE, the minmax table is unaltered.

       _param3 The  format  of the data to be returned in _param5.  Must be one
               of GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, GL_RGB, GL_BGR, GL_RGBA,
               GL_BGRA, GL_LUMINANCE, or GL_LUMINANCE_ALPHA.

       _param4 The  type  of the data to be returned in _param5.  Symbolic con‐
               stants GL_UNSIGNED_BYTE, GL_BYTE, GL_BITMAP,  GL_UNSIGNED_SHORT,
               GL_SHORT,        GL_UNSIGNED_INT,        GL_INT,       GL_FLOAT,
               GL_UNSIGNED_BYTE_3_3_2,              GL_UNSIGNED_BYTE_2_3_3_REV,
               GL_UNSIGNED_SHORT_5_6_5,            GL_UNSIGNED_SHORT_5_6_5_REV,
               GL_UNSIGNED_SHORT_4_4_4_4,        GL_UNSIGNED_SHORT_4_4_4_4_REV,
               GL_UNSIGNED_SHORT_5_5_5_1,        GL_UNSIGNED_SHORT_1_5_5_5_REV,
               GL_UNSIGNED_INT_8_8_8_8,            GL_UNSIGNED_INT_8_8_8_8_REV,
               GL_UNSIGNED_INT_10_10_10_2,  and  GL_UNSIGNED_INT_2_10_10_10_REV
               are accepted.

       _param5 A pointer to storage for the returned values.

DESCRIPTION
       glGetMinmax returns the accumulated minimum  and  maximum  pixel  values
       (computed  on a per-component basis) in a one-dimensional image of width
       2.  The first set of return values are the minima, and the second set of
       return values are the maxima.  The format of the return values is deter‐
       mined by _param3, and their type is determined by _param4.

       No pixel transfer operations are performed on  the  return  values,  but
       pixel storage modes that are applicable to 1-dimensional images are per‐
       formed.  Color components that are requested in the  specified  _param3,
       but  that  are  not included in the internal format of the minmax table,
       are returned as zero.  The assignment of internal  color  components  to
       the components requested by _param3 are as follows:

                       ─────────────────────────────────────────
                       Internal Component   Resulting Component
                       ─────────────────────────────────────────
                       Red                  Red
                       Green                Green
                       Blue                 Blue
                       Alpha                Alpha
                       Luminance            Red
                       ─────────────────────────────────────────

       If rese is GL_TRUE, the minmax table entries corresponding to the return
       values are reset to their initial values.  Minimum  and  maximum  values

       GL_INVALID_OPERATION is generated if glGetMinmax is executed between the
       execution of glBegin and the corresponding execution of glEnd.

       GL_INVALID_OPERATION    is    generated    if    _param4   is   one   of
       GL_UNSIGNED_BYTE_3_3_2,                      GL_UNSIGNED_BYTE_2_3_3_REV,
       GL_UNSIGNED_SHORT_5_6_5,  or  GL_UNSIGNED_SHORT_5_6_5_REV and _param3 is
       not GL_RGB.

       GL_INVALID_OPERATION   is   generated   if    _param4    is    one    of
       GL_UNSIGNED_SHORT_4_4_4_4,                GL_UNSIGNED_SHORT_4_4_4_4_REV,
       GL_UNSIGNED_SHORT_5_5_5_1,                GL_UNSIGNED_SHORT_1_5_5_5_REV,
       GL_UNSIGNED_INT_8_8_8_8,                    GL_UNSIGNED_INT_8_8_8_8_REV,
       GL_UNSIGNED_INT_10_10_10_2,   or   GL_UNSIGNED_INT_2_10_10_10_REV    and
       _param3 is neither GL_RGBA nor GL_BGRA.

SEE ALSO
       glMinmax, glResetMinmax, glGetMinmaxParameter

                                                                GLGETMINMAX(3G)