HP Workstation zx2000 OpenGL 1.1 Reference for HP-UX 11.x - Page 169
Gl_current_raster_position_valid
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Chapter 7 G glGet params returns four values: the red, green, blue, and alpha values of the current raster position. Integer values, if requested, are linearly mapped from the internal floating-point representation such that 1.0 returns the most positive representable integer value, and - 1.0 returns the most negative representable integer value. The initial value is (1, 1, 1, 1). See glRasterPos. GL_CURRENT_RASTER_DISTANCE params returns one value, the distance from the eye to the current raster position. The initial value is 0. See glRasterPos. GL_CURRENT_RASTER_INDEX params returns one value, the color index of the current raster position. The initial value is 1. See glRasterPos. GL_CURRENT_RASTER_POSITION params returns four values: the x, y, z, and w components of the current raster position. x, y, and z are in window coordinates, and w is in clip coordinates. The initial value is (0, 0, 0, 1). See glRasterPos. GL_CURRENT_RASTER_POSITION_VALID params returns a single boolean value indicating whether the current raster position is valid. The initial value is GL_TRUE. See glRasterPos. GL_CURRENT_RASTER_TEXTURE_COORDS params returns four values: the s, t, r, and q current raster texture coordinates. The initial value is (0, 0, 0, 1). See glRasterPos and glTexCoord. GL_CURRENT_TEXTURE_COORDS params returns four values: the s, t, r, and q current texture coordinates. The initial value is (0, 0, 0, 1). See glTexCoord. GL_DEPTH_BIAS params returns one value, the depth bias factor used during pixel transfers. The initial value is 0. See glPixelTransfer. GL_DEPTH_BITS params returns one value, the number of bitplanes in the depth buffer. GL_DEPTH_CLEAR_VALUE params returns one value, the value that is used to clear the depth buffer. Integer values, if requested, are linearly mapped from the internal floating-point representation such that 1.0 returns the most positive representable integer value, and - 1.0 returns the most negative representable integer value. The initial value is 1. See glClearDepth. GL_DEPTH_FUNC params returns one value, the symbolic constant that indicates the depth comparison function. The initial value is GL_LESS. See glDepthFunc. GL_DEPTH_RANGE params returns two values: the near and far mapping limits for the depth buffer. Integer values, if requested, are linearly mapped from the internal floating-point representation such that 1.0 returns the most positive representable integer value, and - 1.0 returns the most negative representable integer value. The initial value is (0, 1). See glDepthRange. 169