class HT_Device

class HT_Image_Format

An enum which describes the data format for image data.

Methods

bitonal                    One bit per pixel. Used by the GDI driver to look up 
                                           and determine the least or most significant bit function. If 
                                           bitonal is off then palette_index is 0; if on then 
                                           palette_index is 1.
index                      One bit per pixel. This is a look-up into the current color palette.
rgb32                      Four bytes per pixel. This method gives a full RGB plus alpha
                                           for transparency.
depth16 & 32               A two or four byte representation of two buffer values.
any                        Will read the image using any format you choose.
device specific            Will use its own internal format. Don't expect to be 
                                           able to read the image, however it will draw it back again.

Constructor

HT_Image_Format       Initializes a new HT_Image_Format object.

HT_Device_Options::HT_Image_Format

Purpose

Constructor to initialize a new HT_Image_Format object.

Synopsis

class HT_Image_Format {
    public:
        enum Enum {
            bitonal,
            index8,
            rgb32,
            depth16,
            depth32,

            any,
            device_specific,

            invalid = -1
        };

    ENUM_CLASS_FUNCTIONS (HT_Image_Format)
};