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handle must be a valid handle to a printer.
Пример 1. printer_abort() example

the function simply draws an pie. handle must be a valid handle to a printer.
printer_draw_pie

the function simply draws an chord. handle must be a valid handle to a printer.
printer_draw_chord

the function calculates the logical font height of height. handle must be a valid handle to a printer.
Пример 1. printer_logical_fontheight() example

mcal_date_valid() returns true if the given year, month and day is a valid date, false if not.
Пред.

mcal_time_valid() returns true if the given hour, minutes and seconds is a valid time, false if not.
Пред.

it is a valid handle for the connected database, and as such it can be used in module-specific functions (if required).
Замечание:

the function selects a font to draw text. printer_handle must be a valid handle to a printer. font_handle must be a valid handle to a font.
Пример 1. printer_select_font() example

ingres_query() sends the given query to the ingres server. this query must be a valid sql query (see the ingres sql reference guide)
Внимание

the function creates a new document in the printer spooler. a document can contain multiple pages, it's used to schedule the print job in the spooler. handle must be a valid handle to a printer. the optional parameter document can be used to set an alternative document name.
Пример 1. printer_start_doc() example

the function simply draws a line from position from_x, from_y to position to_x, to_y using the selected pen. printer_handle must be a valid handle to a printer.
Пример 1. printer_draw_line() example