imagecolorexact
Descrizione
int imagecolorexact ( resource image, int red, int green, int blue )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 pallete are not resolved.
Elenco dei parametri
- image
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
- red
Value of red component
- green
Value of green component
- blue
Value of blue component
Valori restituiti
Returns the index of the specified color in the palette, or -1 if the color does not exist.