HP b2600 Reference Manual page 184

G
glGet
params returns one value, the data type of each coordinate in the vertex array. The
initial value is GL_FLOAT. See glVertexPointer.
GL_VIEWPORT
params returns four values: the x and y window coordinates of the viewport, followed by
its width and height. Initially the x and y window coordinates are both set to 0, and the
width and height are set to the width and height of the window into which the GL will do
its rendering. See glViewport.
GL_ZOOM_X
params returns one value, the x pixel zoom factor. The initial value is 1. See
glPixelZoom.
GL_ZOOM_Y
params returns one value, the y pixel zoom factor. The initial value is 1. See
glPixelZoom.
Many of the boolean parameters can also be queried more easily using glIsEnabled.
Notes
GL_COLOR_LOGIC_OP, GL_COLOR_ARRAY, GL_COLOR_ARRAY_SIZE,
GL_COLOR_ARRAY_STRIDE, GL_COLOR_ARRAY_TYPE, GL_EDGE_FLAG_ARRAY,
GL_EDGE_FLAG_ARRAY_STRIDE, GL_INDEX_ARRAY,
GL_INDEX_ARRAY_STRIDE, GL_INDEX_ARRAY_TYPE, GL_INDEX_LOGIC_OP,
GL_NORMAL_ARRAY, GL_NORMAL_ARRAY_STRIDE, GL_NORMAL_ARRAY_TYPE,
GL_POLYGON_OFFSET_UNITS, GL_POLYGON_OFFSET_FACTOR,
GL_POLYGON_OFFSET_FILL, GL_POLYGON_OFFSET_LINE,
GL_POLYGON_OFFSET_POINT, GL_TEXTURE_COORD_ARRAY,
GL_TEXTURE_COORD_ARRAY_SIZE, GL_TEXTURE_COORD_ARRAY_STRIDE,
GL_TEXTURE_COORD_ARRAY_TYPE, GL_VERTEX_ARRAY,
GL_VERTEX_ARRAY_SIZE, GL_VERTEX_ARRAY_STRIDE, and
GL_VERTEX_ARRAY_TYPE are available only if the GL version is 1.1 or greater.
Errors
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•
See Also
glGetClipPlane,
glGetError,
glGetLight,
glGetMap,
glGetMaterial,
glGetPixelMap,
glGetPointer,
glGetPolygonStipple,
glGetString,
glGetTexEnv,
184
GL_INVALID_ENUM is generated if pname is not an accepted value.
GL_INVALID_OPERATION is generated if glGet is executed between the execution
of glBegin and the corresponding execution of glEnd.
Chapter 7