Request data from DDE server application.
data = ddereq(channel,item,format,timeout)
data
- A matrix that contains the requested data, empty if the function call failed.
channel
- The channel assigned to the conversation, returned by
ddeinit
.
item
- A string that specifies the server application's DDE item name for the data requested.
format
- (optional) A two-element array that specifies the format of the data requested.
- The first element indicates a Windows clipboard format to use for the request. MATLAB supports only Text format, which corresponds to a value of 1.
- The second element of the format array specifies the type of the resultant matrix. The valid types are NUMERIC (the default, corresponding to a value of 0) and STRING (corresponding to a value of 1).
- The default format array is [1 0].
timeout
- (optional) A scalar that specifies the time-out limit for this operation.
timeout
is specified in milliseconds (1000 milliseconds = 1 second). The default timeout
is three seconds.
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.
% Request a matrix of cells from Excel
mymtx = ddereq(channel, 'r1c1:r10c10');
ddeexec, ddeinit
, ddepoke
, ddeterm
, ddeunadv
, ddeadv
(c) Copyright 1994 by The MathWorks, Inc.