Memory When you click on this gadget, you order the SpecialHost program, to pass a pointer of the bitmap of the picture to be included to the printerdriver or previewer.
File This gadget makes, that the driver is passed only one filename, in which the bitmap is stored in a special (simple) format. The file ends on the resolution of the driver in DPI. At that however, first it is tested whether this file is younger as the actual IFF file. Is the IFF file newer – so it must have been changed – or the bitmap file does not yet exist, then the bitmap is created in memory and the bitmap file is freshly created. As the picture is then already in memory anyway, the bitmap is now passed directly.
Mem-B This gadget is related to the Memory gadget. The only difference is, that the driver is additionally appointed to draw a border around the picture.
File-B This gadget resembles the File gadget, however, the driver draws a border around the picture.
Border Here, the SpecialHost program points the driver, to actually draw a border, which corresponds to the size of the picture. The size is evaluated by the SpecialHostprogram, by reading the header of the IFF file.
Rect. Has the same function as the Border gadget. But now, not a border, but a filled rectangle is shown.
Base DPI With this gadget you indicate, in which resolution the IFF pictures are drawn, which you include in the TEX-text. The default value is 100dpi. This means, that a picture in the previewer, set to 100dpi, is shown unchanged. In case of a printer driver with 300dpi resolution however, the picture is enlarged by a factor 3. When the Base DPI remains set to 100, it means, that 100 pixels in the IFF picture are always one inch on the page – all the same with which resolution this picture is displayed or printed out.
Icon By clicking this gadget the window is transformed into a small icon. You can reopen this icon with a double click. The program continues its work uninterrupted as an icon as well.