public static void TestCallback()
{
_Count = 0;
var ed = Application.DocumentManager.MdiActiveDocument.Editor;
// start Line command, the first line
Editor.CommandResult cmdResult1 = ed.CommandAsync(new object[] { "_.LINE", Editor.PauseToken, Editor.PauseToken });
// delegate callback function, wait for interaction ends
_actionCompletedDelegate = new Del(CreateLinesAsyncCallback);
cmdResult1.OnCompleted(new Action(_actionCompletedDelegate));
}
// callback function
public static void CreateLinesAsyncCallback()
{
// AutoCAD hands over to the callback function
var ed = Application.DocumentManager.MdiActiveDocument.Editor;
//if Line command is running
if (isLineActive())
{
if (_Count == 0)
{
// get the first line ID
PromptSelectionResult LastEnt = ed.SelectLast();
oIdArray.Add(LastEnt.Value[0].ObjectId);
// increase count
_Count++;
// hand over to AutoCAD to execute the next interaction
Editor.CommandResult cmdResult = ed.CommandAsync(Editor.PauseToken);
// delegate callback function, wait for interaction ends
_actionCompletedDelegate = new Del(CreateLinesAsyncCallback);
cmdResult.OnCompleted(new Action(_actionCompletedDelegate));
}
else if (_Count == 1)
{
// get the second line ID
PromptSelectionResult LastEnt = ed.SelectLast();
oIdArray.Add(LastEnt.Value[0].ObjectId);
// increase count
_Count++;
// hand over to AutoCAD to execute the next interaction
Editor.CommandResult cmdResult = ed.CommandAsync(Editor.PauseToken);
// delegate callback function, wait for interaction ends
_actionCompletedDelegate = new Del(CreateLinesAsyncCallback);
cmdResult.OnCompleted(new Action(_actionCompletedDelegate));
}
}
else
{
//the end user ends the send command
// display each id of the line
foreach (ObjectId eachId in oIdArray)
{
ed.WriteMessage("\nline object ID: {0}", eachId.ToString());
}
}
}