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Version 1.6.8 comes with the following
changes:
- The DrawLAF Java
Bean can start external commands, then get the
result.
It allows the developer to start external commands, then after
get the result or the error.
A new method has been added to the DrawLAF Java Bean :
SET_EXT_PROG.
Result text or error message is transmitted to the bean through
new Custom Item Event added to the DrawLAF When-Custom-Item-Event
trigger.
The event name is EXT_MSGSTND for a correct result or
EXT_MSGERROR for an error message. The text itself is transmitted
line by line and asynchronously via the EXT_MSGTEXT event:
-------------------------------
-- External
command events --
-------------------------------
ElsIF (eventName='EXT_MSGSTND')
THEN
-- get the standard output
--
eventValues :=
get_parameter_list(:system.custom_item_event_parameters);
get_parameter_attr(eventValues,'EXT_MSGTEXT'
,eventValueType, LC$param);
ELSIF
(eventName='EXT_MSGERROR') THEN
--
get the component properties --
eventValues :=
get_parameter_list(:system.custom_item_event_parameters);
get_parameter_attr(eventValues,'EXT_MSGTEXT'
,eventValueType, LC$param);
END IF;
The screenshot, here, present a "DIR" MS/DOS command to show the
files located on the local machine, but you could also display a
short text file with the TYPE command, or get an environment
variable with the SET command: "cmd /c set username", for
instance.
If you intend to pass a space (blank) in one of the arguments,
pass it into double-quotes:
Set_Custom_Property('BL.BEAN', 1,
'SET_EXT_PROG', 'cmd,/c,findstr
,"width
height",d:\oracle9i\forms90\server\formsweb.cfg' ) ;
The LAF_BEAN's
When-Custom-Item-Event trigger has been updated in the
laf.olb Object Library, so think to get it from the zip
file.
Test the
new /fmb/test_laf_host.fmb sample dialog.
See the Draw_LAF Java Bean properties documentation,
particularly the External Command properties.
See the
old version new
features.
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