(go to: table of contents, index, list of vms_smg, prev: END_PASTEBOARD_UPDATE, next: ERASE_COLUMN)
Format:
None
Arguments:
ERASE_CHARS - Erase Characters
Erase Characters in a virtual display by replacing them with blanks.
vms_smg.erase_chars (display_id, number_of_characters, \
start_row, start_column)
Returns:
Examples:
(go to: table of contents,
index, list of vms_smg,
prev: END_PASTEBOARD_UPDATE,
next: ERASE_COLUMN)
>>> 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)
>>>
>>> # paste virtual display
>>> status = vms_smg.paste_virtual_display \
... (vtdpy1, pasteboard_id, 3, 5, None)
>>>
>>> # put characters on 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)
>>>
>>> # erase some characters
>>> vms_smg.erase_chars (vtdpy1, 2, 2, 2)
>>> vms_smg.erase_chars (vtdpy1, 3, 4, 3)
>>>