1. Scott Roberts
  2. Education & Research
  3. Воскресенье, Июнь 17 2018, 09:50 PM
  4.  Подписаться через email
Hello,

I am having difficulty figuring out how to use the VCursor Class Casting Field Methods in LiveCode.

If I use the VCursor_Field() method, then everything works fine. However, if I attempt to use, for example, VCursor_UShortField() then I get an "error in function handler" error.

What is the correct LiveCode syntax for these methods?

The code that I am using is:


local tRecordCount
put VCursor_RecordCount(tCursor) into tRecordCount

if tRecordCount <> 0 then
local tField

-- These two statements will operate as expected
put VCursor_Field(tCursor, "number_of_recently_opened_databases") into tField
put VField_Value(tField) into sNumberOfRecentlyOpenedDatabases

-- These two statements are the way that I would like to code this because I know that the field in the database is an unsigned short
-- This statement generates an "error in function handler" error
put VCursor_UShortField(tCursor, "number_of_recently_opened_databases") into tField
put VUShort_Value(tField) into sNumberOfRecentlyOpenedDatabases

put true into tSuccess
else
put false into tSuccess
end if

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Ivan Smahin Ответ принят
There are no such functions in V4REV.
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Ruslan Zasukhin Ответ принят
Hi Scott,

you can download detailed PDF about methods in V4REV
https://goo.gl/KexYwE

it is marked as v5, but still valid - API is stable enough
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