_P_u_i_P_r_i_n_t_B_o_x_D_o_P_r_i_n_t provides a programmatic interface to the PrintBox
widget's printing mechanism. A call to _P_u_i_P_r_i_n_t_B_o_x_D_o_P_r_i_n_t simulates
pressing the PPPPrrrriiiinnnntttt button on the PrintBox widget panel.
_P_u_i_P_r_i_n_t_B_o_x_D_o_P_r_i_n_t first calls all functions registered on the
PPPPuuuuiiiiNNNNpppprrrriiiinnnnttttCCCCaaaallllllllbbbbaaaacccckkkk list. Next, if the PPPPuuuuiiiiNNNNpppprrrriiiinnnnttttiiiinnnnggggPPPPoooolllliiiiccccyyyy resource is set
to PPPPuuuuiiiiWWWWIIIIDDDDGGGGEEEETTTT____PPPPRRRRIIIINNNNTTTTIIIINNNNGGGG, the PrintBox widget's internal printing function
is called to print the specified file(s), or buffer. If
PPPPuuuuiiiiNNNNpppprrrriiiinnnnttttiiiinnnnggggPPPPoooolllliiiiccccyyyy is set to PPPPuuuuiiiiAAAAPPPPPPPPLLLLIIIICCCCAAAATTTTIIIIOOOONNNN____PPPPRRRRIIIINNNNTTTTIIIINNNNGGGG, the widget's
internal printing routine is not called, and it becomes the application's
responsibility to submit the job for printing.
If an error occurs when submitting the print job to the spooling system,
the functions registered on the PPPPuuuuiiiiNNNNeeeerrrrrrrroooorrrrCCCCaaaallllllllbbbbaaaacccckkkk list will be called. If
the print job is successfully submitted, the functions registered on the
PPPPuuuuiiiiNNNNjjjjoooobbbbIIIInnnnffffooooCCCCaaaallllllllbbbbaaaacccckkkk list will be called.
For a complete definition of the PPPPrrrriiiinnnnttttBBBBooooxxxx and its associated resources,