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Format:
CHANGE_RENDITION - Change Default Rendition
Changes the video attributes for all or part of a virtual display.
status = vms_smg.change_rendition (display_id, \
start_row, start_column, \
number_of_rows, number_of_columns, \
[rendition_set], [rendition_complement])
Returns:
Arguments:
Examples:
(go to: table of contents,
index, list of vms_smg,
prev: CHANGE_PBD_CHARACTERISTICS,
next: CHANGE_VIEWPORT)
>>> import vms_smg
>>> import vms_smgdef
>>> # create a new DECwindows terminal using SMG
>>> status, pasteboard_id, number_of_pasteboard_rows, \
... number_of_pasteboard_columns, type_of_terminal, \
... device_name = vms_smg.create_pasteboard \
... (None, vms_smgdef.SMG_M_WORKSTATION)
>>>
>>> # create virtual display
>>> status, vtdpy1 = vms_smg.create_virtual_display \
... (5, 10, vms_smgdef.SMG_M_BORDER, None, None)
>>>
>>> # write to virtual display
>>> status = vms_smg.put_chars (vtdpy1, '1234567890', 1, 1)
>>> status = vms_smg.put_chars (vtdpy1, 'ABCDEFGHIJ', 2, 1)
>>> status = vms_smg.put_chars (vtdpy1, 'KLMNOPQRST', 3, 1)
>>> status = vms_smg.put_chars (vtdpy1, 'abcdefghij', 4, 1)
>>> status = vms_smg.put_chars (vtdpy1, 'klmnopqrst', 5, 1)
>>>
>>> # paste virtual display
>>> status = vms_smg.paste_virtual_display \
... (vtdpy1, pasteboard_id, 3, 5, None)
>>>
>>> # define the new rendition set
>>> rendition_set = vms_smgdef.SMG_M_REVERSE + \
... vms_smgdef.SMG_M_UNDERLINE
>>> # change the set
>>> status = vms_smg.change_rendition \
... (vtdpy1, 2, 3, 2, 3, rendition_set)
>>>
>>> # try to change the rendition of a non-existing display
>>> status = vms_smg.change_rendition (vtdpy1+99, 1, 2, 3, 4)
Traceback (innermost last):
File "<stdin>", line 1, in ?
vms_smg.error: (1212956, '%SMG-F-INVDIS_ID, invalid display-id')
>>>
>>> # use a bad value for the rendition_complement
>>> status = vms_smg.change_rendition (vtdpy1, 1, 2, 3, 4, 3, 99)
Traceback (innermost last):
File "<stdin>", line 1, in ?
vms_smg.error: (1212940, '%SMG-F-INVARG, invalid argument')
>>>