UNTITLED LOCAL UNTITLED
NAME
glutSetColor -- Sets an indexed color-mode entry.
LIBRARY
OpenGLUT - colormap
SYNOPSIS
#include <openglut.h>
void
glutSetColor(int nColor, GLfloat red, GLfloat green, GLfloat blue);
PARAMETERS
nColor The palette entry to change.
red New red value for palette entry.
green New green value for palette entry.
blue New blue value for palette entry.
DESCRIPTION
glutSetCursor() allows you to set individual color-map entries in a GLUT_INDEX type of display. Respects the current overlay setting.
BUGS
Unimplemented.
SEE ALSO glutGetColor(3)glutCopyColorMap(3)
Epoch
Check Out this Related Man Page
IMAGECOLOREXACT(3) 1 IMAGECOLOREXACT(3)imagecolorexact - Get the index of the specified colorSYNOPSIS
int imagecolorexact (resource $image, int $red, int $green, int $blue)
DESCRIPTION
Returns the index of the specified color in the palette of the image.
If you created the image from a file, only colors used in the image are resolved. Colors present only in the palette are not resolved.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $red
-Value of red component.
o $green
-Value of green component.
o $blue
-Value of blue component.
RETURN VALUES
Returns the index of the specified color in the palette, or -1 if the color does not exist.
EXAMPLES
Example #1
Get colors from the GD logo
<?php
// Setup an image
$im = imagecreatefrompng('./gdlogo.png');
$colors = Array();
$colors[] = imagecolorexact($im, 255, 0, 0);
$colors[] = imagecolorexact($im, 0, 0, 0);
$colors[] = imagecolorexact($im, 255, 255, 255);
$colors[] = imagecolorexact($im, 100, 255, 52);
print_r($colors);
// Free from memory
imagedestroy($im);
?>
The above example will output something similar to:
Array
(
[0] => 16711680
[1] => 0
[2] => 16777215
[3] => 6618932
)
SEE ALSO imagecolorclosest(3).
PHP Documentation Group IMAGECOLOREXACT(3)
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