The user preferences can be read and changed without running the Workbench Preferences tool. Reading printer preferences can be done by referring to PD->pd_Preferences. Listed on the next page are the printer Preferences fields and their valid ranges. Text Preferences ---------------- PrintPitch - PICA, ELITE, FINE PrintQuality - DRAFT, LETTER PrintSpacing - SIX_LPI, EIGHT_LPI PrintLeftMargin - 1 to PrintRightMargin PrintRightMargin - PrintLeftMargin to 999 PaperLength - 1 to 999 PaperSize - US_LETTER, US_LEGAL, N_TRACTOR, W_TRACTOR,CUSTOM PaperType - FANFOLD, SINGLE Graphic Preferences ------------------- PrintImage - IMAGE_POSITIVE, IMAGE_NEGATIVE PrintAspect - ASPECT_HORIZ, ASPECT_VERT PrintShade - SHADE_BW, SHADE_GREYSCALE, SHADE_COLOR PrintThreshold - 1 to 15 PrintFlags - CORRECT_RED, CORRECT_GREEN, CORRECT_BLUE, CENTER_IMAGE, IGNORE_DIMENSIONS, BOUNDED_DIMENSIONS, ABSOLUTE_DIMENSIONS, PIXEL_DIMENSIONS, MULTIPLY_DIMENSIONS, INTEGER_SCALING, ORDERED_DITHERING, HALFTONE_DITHERING, FLOYD_DITHERING, ANTI_ALIAS, GREY_SCALE2 PrintMaxWidth - 0 to 65535 PrintMaxHeight - 0 to 65535 PrintDensity - 1 to 7 PrintXOffset - 0 to 255 This example program changes various settings in the printer device's copy of preferences. Set_Prefs.c Do Your Duty. ------------- The application program is responsible for range checking if the user is able to change the preferences from within the application.
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