UNTITLED LOCAL UNTITLED
NAMEglutGet — Allows you to query some general state/option variables.
LIBRARY
OpenGLUT - state
SYNOPSIS
#include <openglut.h>
int
glutGet(GLenum eWhat);
PARAMETERS
eWhat Enumerated parameter ID.
DESCRIPTION
This function permits you to query for the current value of many differ‐
ent OpenGLUT state variables. The current list is:
- GLUT_ACTION_ON_WINDOW_CLOSE
Allows you to do something other than die if the user closes one of your
windows.
- GLUT_DISPLAY_MODE_POSSIBLE
- GLUT_ELAPSED_TIME
- GLUT_INIT_DISPLAY_MODE
- GLUT_INIT_STATE
- GLUT_INIT_WINDOW_HEIGHT
- GLUT_INIT_WINDOW_WIDTH
- GLUT_INIT_WINDOW_X
- GLUT_INIT_WINDOW_Y
- GLUT_MENU_NUM_ITEMS
- GLUT_RENDERING_CONTEXT
Allows you to specify context-sharing when you open new windows.
- GLUT_SCREEN_HEIGHT
- GLUT_SCREEN_HEIGHT_MM
Height in millimeters.
- GLUT_SCREEN_WIDTH
- GLUT_SCREEN_WIDTH_MM
Width in millimeters.
- GLUT_VERSION
- GLUT_WINDOW_ACCUM_ALPHA_SIZE
- GLUT_WINDOW_ACCUM_BLUE_SIZE
- GLUT_WINDOW_ACCUM_GREEN_SIZE
- GLUT_WINDOW_ACCUM_RED_SIZE
- GLUT_WINDOW_ALPHA_SIZE
- GLUT_WINDOW_BLUE_SIZE
- GLUT_WINDOW_BORDER_WIDTH
- GLUT_WINDOW_BUFFER_SIZE
- GLUT_WINDOW_COLORMAP_SIZE
- GLUT_WINDOW_CURSOR
- GLUT_WINDOW_DEPTH_SIZE
- GLUT_WINDOW_DOUBLEBUFFER
- GLUT_WINDOW_FORMAT_ID
System dependant.
- GLUT_WINDOW_GREEN_SIZE
- GLUT_WINDOW_HEADER_HEIGHT
- GLUT_WINDOW_HEIGHT
- GLUT_WINDOW_NUM_CHILDREN
- GLUT_WINDOW_NUM_SAMPLES
- GLUT_WINDOW_PARENT
- GLUT_WINDOW_RED_SIZE
- GLUT_WINDOW_RGBA
- GLUT_WINDOW_STENCIL_SIZE
- GLUT_WINDOW_STEREO
- GLUT_WINDOW_WIDTH
- GLUT_WINDOW_X
- GLUT_WINDOW_Y
Most of the above are very obvious, and so full documentation is post‐
poned for now.
TODO
Go back and flesh out the above list.
This function is a bit messy, especially the WINCE part. Fix.
Lots of code uses return to hop out. Since it's such a sprawling func‐
tion, it's easy to be in the middle and not be 100% sure if there's any‐
thing important at the end of the function, or if it is safe to just
"drop out" of the current case and head for the bottom.
Causes crashes (assertion failure) if you call this before having called
glutInit()---other than GLUT_INIT_STATE and GLUT_ELAPSED_TIME. Because
various things can cause OpenGLUT to become deinitialized, we should
probably either return default values of some kind or do minimal initial‐
ization if we are called without proper initialization.
SEE ALSOglutSetOption(3)glutDeviceGet(3)glutGetModifiers(3)glutLayerGet(3)
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