Prototype
subroutine EcsReadFieldRowCol(integer:Row, integer: Col, string:FieldContents)
Description
Field-oriented. Copies the contents of a field at a specified screen position into a string variable.
Parameters
Row |
Input |
An integer specifying the row in which the field is on the screen. The value must be greater than zero and less than or equal to the number of rows on the screen. |
Col |
Input |
An integer specifying the column in which the field is on the screen. The value must be greater than zero and less than or equal to the number of columns on the screen. |
FieldContents |
Output |
A reference to the string that will receive the content of the specified field. |
Return Value
ECS_E_NOTINIT |
Not initialized - command was ignored |
ECS_E_NOTCONN |
Not connected to an active session |
ECS_E_NOFLDS |
Screen contains no fields |
ECS_E_FLDNUM |
Invalid field number or Row/Col values were not valid, e.g. not on the screen |
ECS_E_ERRORFREE |
No errors were generated |
Example
###*******************************************
### action to read a field at screen position
###*******************************************
action ReadFieldAtPosition is
copy text of Row_SB in Read_DB to Row_IV
copy text of Column_SB in Read_DB to Column_IV
call EcsReadFieldRowCol ( Row_IV, Column_IV, String_SV )
copy errorlevel to ErrorLevel_IV
copy "EcsReadField" to Call_SV
if ( ErrorLevel_IV = ECS_E_ERRORFREE ) then
copy "Read was successful" to Message_SV
action DisplayMessage
else
action DisplayError
end if
