Select a Text from AutoCAD and to Display in C# windows forms
Hi Micky,
Greetings to you too 🙂
Will a pure .Net API route suit your needs ? You will not need the COM API for this :
Here is a sample code :
Document doc = Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
PromptSelectionOptions pso = new PromptSelectionOptions();
pso.MessageForAdding = "\nSelect the entities";
pso.SingleOnly = false;
PromptSelectionResult psr = ed.GetSelection(pso);
if (psr.Status != PromptStatus.OK) return;
SelectionSet ss = psr.Value;
foreach (SelectedObject selectedObj in ss)
{
switch (selectedObj.SelectionMethod)
{
case SelectionMethod.Crossing:
{
CrossingOrWindowSelectedObject crossingWindSelectedObj = selectedObj as CrossingOrWindowSelectedObject;
break;
}
}
}
The SelectionMethod enum has other values for Window selection and so on. You can check it out yourself.
Balaji
Developer Technical Services
Autodesk Developer Network
The OP is obviously doing a stand-alone EXE app that automate AutoCAD (or the OP would not have to have code "new AcadApplication();" , thus cannot use .NET API.
To OP:
In your Select() method, you only pass in 2 points, which cannot form a polygon, thus, the first argument of the Select() method should be acSelectionSetFence.
Since your selecting target is text, it would be better to supply a selection filter (the last 2 arguments of the Select() method).
Anyway, assume the Select() method does return a set of AcadEnity, you simply loop through the SelectionSet to retrieve test string, like this:
StringBuillder txt=new StringBuilder();
foreach (object ent in ssetObj)
{
AcadText t=ent as AcadText
if (T!=null)
{
txt.Append(t.TextString + "\n");
}
}
//Show the text clollected in message box, or in your form.
MessageBox.Show(t.ToString());
Of course, if your selection target alos include MText, then you need to deal with it accordingly.
OK, simply call
ssetobj.Select(acSelectionSetWindow, startPoint, endPoint,....)
