IpcServer.DataRequest Method

Called whenever a client makes a request for data or when the IpcServer:UpdateTopic() is called.

Namespace: VO
Assembly: VOGUIClasses (in VOGUIClasses.dll) Version: 2.21

Syntax

 VIRTUAL METHOD DataRequest(
	oIpcDataRequestEvent
) AS USUAL CLIPPER

[ClipperCallingConventionAttribute(new string[] { ... })]
public virtual Usual DataRequest(
	Usual oIpcDataRequestEvent = default
)

Request Example View Source

Parameters

oIpcDataRequestEvent (Optional): Type: Usual
Stores the topic name and item name.

Return Value

Type: Usual
An object containing a pointer to the data and the length of the data string (it created as a global memory object by Windows DDE management library and it passes a data handle back to the application).

Remarks

Tip
Important! This is a callback method used by X#. Normally, it should not be called in your application code.

Reference

IpcServer Class

VO Namespace