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glIndexdv function

Applies to: desktop apps only

The glIndexdv function sets the current color index.

Syntax

void WINAPI glIndexdv(
  const GLdouble *c
);

Parameters

c

A pointer to a one-element array that contains the new value for the current color index.

Return value

This function does not return a value.

Remarks

The glIndexdv function updates the current (single-valued) color index. It takes one argument: the new value for the current color index.

The current index is stored as a floating-point value. Integer values are converted directly to floating-point values, with no special mapping.

Index values outside the representable range of the color-index buffer are not clamped. However, before an index is dithered (if enabled) and written to the framebuffer, it is converted to fixed-point format. Any bits in the integer portion of the resulting fixed-point value that do not correspond to bits in the framebuffer are masked out.

The current index can be updated at any time. In particular, glIndexdv can be called between a call to glBegin and the corresponding call to glEnd.

The following function retrieves information related to glIndexdv:

glGet with argument GL_CURRENT_INDEX

Requirements

Minimum supported client

Windows 2000 Professional

Minimum supported server

Windows 2000 Server

Header

Gl.h

Library

Opengl32.lib

DLL

Opengl32.dll

See also

glBegin
glColor
glEnd
glGet

 

 

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Build date: 3/6/2012

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