GLUTINITDISPLAYMODE(3)

NAME
glutInitDisplayMode - Set the window creation display mode.

LIBRARY
OpenGLUT - window

SYNOPSIS
#include <openglut.h>
void
glutInitDisplayMode(unsigned int displayMode);

PARAMETERS

displayMode Requested display mode bitmask.

DESCRIPTION
glutInitDisplayMode() allows you to control the mode for subsequent OpenGLUT windows.

Allowable displayMode is a combination of:

- GLUT_RGB

Red, green, blue framebuffer.

- GLUT_RGBA

Red, green, blue, alpha framebuffer.

- GLUT_INDEX

Indexed color framebuffer.

- GLUT_SINGLE

Single-buffered mode.

- GLUT_DOUBLE

Double-buffered mode.

- GLUT_ACCUM

Accumulation buffer.

- GLUT_ALPHA

Alpha channel.

- GLUT_DEPTH

Depth buffering.

- GLUT_STENCIL

Stencil buffering.

- GLUT_MULTISAMPLE

Multisampling mode. (not always available)

- GLUT_STEREO

Left and right framebuffers.

- GLUT_LUMINANCE

Greyscale color mode.

Additionally, the following experimental features are implemented:

- GLUT_OFFSCREEN

Offscreen windows are very much like onscreen windows that have been dragged off of the edge of the screen. The biggest issue is that offscreen windows do not support subwindows. Other than that, onscreen windows that are dragged off of the edge may not store graphics that you render (while GLUT_OFFSCREEN

windows do), and there is no way to drag an offscreen window onscreen for user interaction.

- GLUT_BORDERLESS

Borderless windows are very experimental, and their precise behavior is not set in stone. See also glutCreateMenuWindow().

The following are defaults :

- GLUT_RGB

- GLUT_SINGLE

CAVEATS
Some display mode features were introduced by OpenGLUT.

Not all features or combinations of features are valid for all platforms.

There is no way to change the display mode of an open window.

BUGS
GLUT_OFFSCREEN windows do not work with nVidia cards/drivers. (Both Win32 and X11)

GLUT_BORDERLESS seems to vary by the window manager on X11, though twm (for example) performs very similarly to WIN32. But KDE's window manager (for example) does not let you send keystrokes to borderless windows without OpenGLUT hacks.

SEE ALSO
glutCreateMenuWindow(3) glutInit(3) glutInitWindowSize(3) glutInitWindowPosition(3) glutInitDisplayString(3) glutSwapBuffers(3)