glutgetcolor(3glut) [osx man page]
glutGetColor(3GLUT) GLUT glutGetColor(3GLUT) NAME
glutGetColor - retrieves a red, green, or blue component for a given color index colormap entry for the layer in use's logical colormap for the current window. SYNTAX
#include <GLUT/glut.h> GLfloat glutGetColor(int cell, int component); ARGUMENTS
cell Color cell index (starting at zero). component One of GLUT_RED, GLUT_GREEN, or GLUT_BLUE. DESCRIPTION
glutGetColor retrieves a red, green, or blue component for a given color index colormap entry for the current window's logical colormap. The current window should be a color index window. cell should be zero or greater and less than the total number of colormap entries for the window. For valid color indices, the value returned is a floating point value between 0.0 and 1.0 inclusive. glutGetColor will return -1.0 if the color index specified is an overlay's transparent index, less than zero, or greater or equal to the value returned by glut- Get(GLUT_WINDOW_COLORMAP_SIZE), that is if the color index is transparent or outside the valid range of color indices. SEE ALSO
glutGet, glutSetColor, glutCopyColormap AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutGetColor(3GLUT)
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glutGet(3GLUT) GLUT glutGet(3GLUT) NAME
glutGet - retrieves simple GLUT state represented by integers. SYNTAX
#include <GLUT/glut.h> int glutGet(GLenum state); ARGUMENTS
state Name of state to retrieve. GLUT_WINDOW_X X location in pixels (relative to the screen origin) of the current window. GLUT_WINDOW_Y Y location in pixels (relative to the screen origin) of the current window. GLUT_WINDOW_WIDTH Width in pixels of the current window. GLUT_WINDOW_HEIGHT Height in pixels of the current window. GLUT_WINDOW_BUFFER_SIZE Total number of bits for current layer of current window's color buffer. For an RGBA window, this is the sum of GLUT_WIN- DOW_RED_SIZE, GLUT_WINDOW_GREEN_SIZE, GLUT_WINDOW_BLUE_SIZE, and GLUT_WINDOW_ALPHA_SIZE. For color index windows, this is the size of the color indexes. GLUT_WINDOW_STENCIL_SIZE Number of bits in the current layer of current window's stencil buffer. GLUT_WINDOW_DEPTH_SIZE Number of bits in the current layer of current window's depth buffer. GLUT_WINDOW_RED_SIZE Number of bits of red stored the current layer of current window's color buffer. Zero if the current layer of the current window is color index. GLUT_WINDOW_GREEN_SIZE Number of bits of green stored the current layer of current window's color buffer. Zero if the current layer of the current window is color index. GLUT_WINDOW_BLUE_SIZE Number of bits of blue stored the current layer of current window's color buffer. Zero if the current layer of the current window is color index. GLUT_WINDOW_ALPHA_SIZE Number of bits of alpha stored the current layer of current window's color buffer. Zero if the current layer of the current window is color index. GLUT_WINDOW_ACCUM_RED_SIZE Number of bits of red stored in the current layer of current window's accumulation buffer. Zero if the current layer of the current window is color index. GLUT_WINDOW_ACCUM_GREEN_SIZE Number of bits of green stored in the current layer of current window's accumulation buffer. Zero if the current layer of the cur- rent window is color index. GLUT_WINDOW_ACCUM_BLUE_SIZE Number of bits of blue stored in the current layer of current window's accumulation buffer. Zero if the current layer of the cur- rent window is color index. GLUT_WINDOW_ACCUM_ALPHA_SIZE Number of bits of alpha stored in the current layer of current window's accumulation buffer. Zero if the current layer of the cur- rent window is color index. GLUT_WINDOW_DOUBLEBUFFER One if the current layer of the current window is double buffered, zero otherwise. GLUT_WINDOW_RGBA One if the current layer of the current window is RGBA mode, zero otherwise (i.e., color index). GLUT_WINDOW_PARENT The window number of the current window's parent; zero if the window is a top-level window. GLUT_WINDOW_NUM_CHILDREN The number of subwindows the current window has (not counting children of children). GLUT_WINDOW_COLORMAP_SIZE Size of current layer of current window's color index colormap; zero for RGBA color model layers. GLUT_WINDOW_NUM_SAMPLES Number of samples for multisampling for the current layer of the current window. GLUT_WINDOW_STEREO One if the current layer of the current window is stereo, zero otherwise. GLUT_WINDOW_CURSOR Current cursor for the current window. GLUT_SCREEN_WIDTH Width of the screen in pixels. Zero indicates the width is unknown or not available. GLUT_SCREEN_HEIGHT Height of the screen in pixels. Zero indicates the height is unknown or not available. GLUT_SCREEN_WIDTH_MM Width of the screen in millimeters. Zero indicates the width is unknown or not available. GLUT_SCREEN_HEIGHT_MM Height of the screen in millimeters. Zero indicates the height is unknown or not available. GLUT_MENU_NUM_ITEMS Number of menu items in the current menu. GLUT_DISPLAY_MODE_POSSIBLE Whether the current display mode is supported or not. GLUT_INIT_DISPLAY_MODE The initial display mode bit mask. GLUT_INIT_WINDOW_X The X value of the initial window position. GLUT_INIT_WINDOW_Y The Y value of the initial window position. GLUT_INIT_WINDOW_WIDTH The width value of the initial window size. GLUT_INIT_WINDOW_HEIGHT The height value of the initial window size. GLUT_ELAPSED_TIME Number of milliseconds since glutInit called (or first call to glutGet(GLUT_ELAPSED_TIME)). GLUT_WINDOW_FORMAT_ID The window system dependent format ID for the current layer of the current window. On X11 GLUT implementations, this is the X vis- ual ID. On Win32 GLUT implementations, this is the Win32 Pixel Format Descriptor number. This value is returned for debugging, benchmarking, and testing ease. DESCRIPTION
glutGet retrieves simple GLUT state represented by integers. The state parameter determines what type of state to return. Where appropri- ate, window capability state is returned for the layer in use. GLUT state names beginning with GLUT_WINDOW_ return state for the current window. GLUT state names beginning with GLUT_MENU_ return state for the current menu. Other GLUT state names return global state. Request- ing state for an invalid GLUT state name returns negative one. SEE ALSO
glutDeviceGet, glutLayerGet, glutGetColor, glutGetWindow, glutGetMenu, glutGetModifiers, glutExtensionSupported AUTHOR
Mark J. Kilgard (mjk@nvidia.com) GLUT
3.7 glutGet(3GLUT)