_Application.DDERequest(Int32, String) Method

Definition

Namespace:

Microsoft.Office.Interop.Word

Assembly:

Microsoft.Office.Interop.Word.dll

Uses an open dynamic data exchange (DDE) channel to request information from the receiving application, and returns the information as a string.

public:
 System::String ^ DDERequest(int Channel, System::String ^ Item);

public string DDERequest (int Channel, string Item);

abstract member DDERequest : int * string -> string

Public Function DDERequest (Channel As Integer, Item As String) As String

Parameters

Channel

Int32

Required Integer. The channel number returned by the DDEInitiate(String, String) method.

Item

String

Required String. The item to be requested.

Returns

String

Remarks

Dynamic data exchange (DDE) is an older technology that is not secure. If possible, use a more secure alternative to DDE.

When you request information from the topic in the server application, you must specify the item in that topic whose contents you're requesting. In Microsoft Excel, for example, cells are valid items, and you refer to them by using either the "R1C1" format or named references.

Microsoft Excel and other applications that support DDE recognize a topic named "System." Three standard items in the System topic are described in the following table. Note that you can get a list of the other items in the System topic by using the SysItems item.

	SysItems	Returns a list of all the items in the System topic.
	Topics	Returns a list of all the available topics.
	Formats	Returns a list of all the Clipboard formats supported by Microsoft Word.