## GetColorInfoList GetColorInfoList() returns any colors that match the specified pattern. The format of the GetColorInfoList function is:
      const ColorInfo **GetColorInfoList(const char *pattern,
        unsigned long *number_colors,ExceptionInfo *exception)
A description of each parameter follows: #### pattern Specifies a pointer to a text string containing a pattern. #### number_colors This integer returns the number of colors in the list. #### exception Return any errors or warnings in this structure. ## GetColorList GetColorList() returns any colors that match the specified pattern. The format of the GetColorList function is:
      char **GetColorList(const char *pattern,unsigned long *number_colors,
        ExceptionInfo *exception)
A description of each parameter follows: #### pattern Specifies a pointer to a text string containing a pattern. #### number_colors This integer returns the number of colors in the list. #### exception Return any errors or warnings in this structure. ## GetImageHistogram GetImageHistogram() returns the unique colors in an image. The format of the GetImageHistogram method is:
      unsigned long GetImageHistogram(const Image *image,
        unsigned long *number_colors,ExceptionInfo *exception)
A description of each parameter follows. #### image The image. #### file Write a histogram of the color distribution to this file handle. #### exception Return any errors or warnings in this structure. ## GetMagickPixelPacket GetMagickPixelPacket() initializes the MagickPixelPacket structure. The format of the GetMagickPixelPacket method is:
      GetMagickPixelPacket(const Image *image,MagickPixelPacket *pixel)
A description of each parameter follows: #### image The image. #### pixel Specifies a pointer to a PixelPacket structure. ## GetNumberColors GetNumberColors() returns the number of unique colors in an image. The format of the GetNumberColors method is:
      unsigned long GetNumberColors(const Image *image,FILE *file,
        ExceptionInfo *exception)
A description of each parameter follows. #### image The image. #### file Write a histogram of the color distribution to this file handle. #### exception Return any errors or warnings in this structure. ## IsGrayImage IsGrayImage() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities. The format of the IsGrayImage method is:
      MagickBooleanType IsGrayImage(const Image *image,
        ExceptionInfo *exception)
A description of each parameter follows: #### image The image. #### exception Return any errors or warnings in this structure. ## IsMonochromeImage IsMonochromeImage() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities and the intensity is either 0 or QuantumRange. The format of the IsMonochromeImage method is:
      MagickBooleanType IsMonochromeImage(const Image *image,
        ExceptionInfo *exception)
A description of each parameter follows: #### image The image. #### exception Return any errors or warnings in this structure. ## IsOpaqueImage IsOpaqueImage() returns MagickTrue if none of the pixels in the image have an opacity value other than opaque (0). The format of the IsOpaqueImage method is:
      MagickBooleanType IsOpaqueImage(const Image *image,
        ExceptionInfo *exception)
A description of each parameter follows: #### image The image. #### exception Return any errors or warnings in this structure. ## IsPaletteImage IsPaletteImage() returns MagickTrue if the image is PseudoClass and has 256 unique colors or less. The format of the IsPaletteImage method is:
      MagickBooleanType IsPaletteImage(const Image *image,
        ExceptionInfo *exception)
A description of each parameter follows. #### image The image. #### exception Return any errors or warnings in this structure. ## ListColorInfo ListColorInfo() lists color names to the specified file. Color names are a convenience. Rather than defining a color by its red, green, and blue intensities just use a color name such as white, blue, or yellow. The format of the ListColorInfo method is:
      MagickBooleanType ListColorInfo(FILE *file,ExceptionInfo *exception)
A description of each parameter follows. #### file List color names to this file handle. #### exception Return any errors or warnings in this structure. ## LoadColorList LoadColorList() loads one or more color configuration file which provides a mapping between color attributes and a color name. The format of the LoadColorLists method is:
      MagickBooleanType LoadColorLists(const char *filename,
        ExceptionInfo *exception)
A description of each parameter follows: #### filename The font file name. #### exception Return any errors or warnings in this structure. ## QueryColorDatabase QueryColorDatabase() returns the red, green, blue, and opacity intensities for a given color name. The format of the QueryColorDatabase method is:
      MagickBooleanType QueryColorDatabase(const char *name,PixelPacket *color,
        ExceptionInfo *exception)
A description of each parameter follows: #### name The color name (e.g. white, blue, yellow). #### color The red, green, blue, and opacity intensities values of the named color in this structure. #### exception Return any errors or warnings in this structure. ## QueryColorname QueryColorname() returns a named color for the given color intensity. If an exact match is not found, a hex value is return instead. For example an intensity of rgb:(0,0,0) returns black whereas rgb:(223,223,223) returns #dfdfdf. The format of the QueryColorname method is:
      MagickBooleanType QueryColorname(const Image *image,
        const PixelPacket *color,const ComplianceType compliance,char *name,
        ExceptionInfo *exception)
A description of each parameter follows. #### image The image. #### color The color intensities. #### Compliance Adhere to this color standard: SVG, X11, or XPM. #### name Return the color name or hex value. #### exception Return any errors or warnings in this structure. ## QueryMagickColor QueryMagickColor() returns the red, green, blue, and opacity intensities for a given color name. The format of the QueryMagickColor method is:
      MagickBooleanType QueryMagickColor(const char *name,
        MagickPixelPacket *color,ExceptionInfo *exception)
A description of each parameter follows: #### name The color name (e.g. white, blue, yellow). #### color The red, green, blue, and opacity intensities values of the named color in this structure. #### exception Return any errors or warnings in this structure. |

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