Finally I used tempoary line and text to show out informaiton on screen (Left), however I 'm still looking for the possibility to use a small dialog which look like the attached picture (Right). Is there any functions can do the similar...?
NX does not have any built in API to create these small 'temporary' dialogs (as far as I know).
But you could get something more like you want with some careful usage of the following (or their wrapper methods):
You could possibly even create a tiny WinForms dialog that sat at the end of the leader line you displayed. But that's an awful lot of work for a simple label.
Lenovo ThinkPad W540, Win7, 16GB. Developing in: Java | C | C# | KF
Production: NX18.104.22.168 MP11 64bit Testing: NX22.214.171.124