Property access for
read only.
The property itself cannot be changed (is "read only"), but the called method can change anything by its algorithm.
Designer methods in the PmaPanel object:
This property is also functional in
Web panels. See
Example2.
Calling the methods for the Web is protected by the "
WebMethods" permission.
Limitations: Called methods can have parameters and an output value (
pResult) only:
- simple data types (e.g. Integer, String, etc.)
- 1-dimensional array defined e.g.
Dim arr(20)- 2-dimensional array defined e.g.
Dim arr(10,20)- there must not be other arrays in the array items
Calling this method for
Web panels should be used with limit because each such calling performs a XML communication with the server! If, for example, 100
Pmg objects were in the panel and this method in the
onRefresh event was called in each such
Pmg object, then 100 communications would been performed step by step during each refresh of the picture, which wouldn't been probably acceptable.
Designer methods in the PmaSequencer object: The
PmaSequencer object is special because its the
onStep event is triggered in main or working thread (
"thread:work;" or
"thread:main;"). Therefore the methods were doubled internally and then compiled in both: in the main thread and in the worker thread.
If the method is called from the working thread, then it is executed in this thread. In other cases it is executed in the main thread (as other object methods are).
This allows easy creation of auxiliary functions making the
onStep event itself much better arranged. Even if the
onStep event is called alternatively in main and working thread the method is then called automatically in the corresponding thread.
Designer methods in the PmaRoot object:
Methods in the
PmaRoot object (application global methods) are called by means of the
Pm.Methods property.