TModifiableImage derived classes
TModifiableImage has the derived classes shown in Figure 78 and described in Table 7 on page 126. These classes provide black and white, gray scale, RGB, or halftone images. See the heading "Creating an image graphic" on page 123 for a description of these classes.
TGModifiableImage derived classes
Each image graphic owns an image geometry that is a pixel buffer. Figure 79 shows how each image graphic listed in the table above has its corresponding pixel buffer that descends from TGImage. Pixel buffers are part of the graphics device architecture that is briefly described in Chapter 19.