MATLAB Function Reference Volume 1: A - E - Bad Request

2ddereq
Purpose Request data from application
Syntax data = ddereq(channel,'item')
data = ddereq(channel,'item',format)
data = ddereq(channel,'item',format,timeout)
Description ddereq requests data from a server application via an established DDE
conversation. ddereq returns a matrix containing the requested data or an
empty matrix if the function is unsuccessful.
Arguments
ddereq
If you omit optional arguments that are not at the end of the argument list, you
must substitute the empty matrix for the missing argument(s).
If successful, ddereq returns a matrix containing the requested data in
variable, data. Otherwise, it returns an empty matrix.
channel Conversation channel from ddeinit.
item String specifying the server application's DDE item name for
the data requested.
format
(optional)
timeout
(optional)
Two-element array specifying the format of the data requested.
The first element specifies the Windows clipboard format to
use. The only currently supported format is cf_text, which
corresponds to a value of 1. The second element specifies the
type of the resultant matrix. Valid types are numeric (the
default, which corresponds to 0) and string (which
corresponds to a value of 1). The default format array is [1 0].
Scalar specifying the time-out limit for this operation. timeout
is specified in milliseconds. (1000 milliseconds = 1 second). The
default value of timeout is three seconds.
Examples Assume that we have an Excel spreadsheet stocks.xls. This spreadsheet
contains the prices of three stocks in row 3 (columns 1 through 3) and the
number of shares of these stocks in rows 6 through 8 (column 2). Initiate
conversation with Excel with the command:
channel = ddeinit('excel','stocks.xls')
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