WideStudio/MWT Programming Guide	WideStudio/MWT Index Table of contents

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How to access to the member instances

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How to access to the member instances in the class event procedures

To access to the member instance, the instance needs to be defined as "member" of the user defined class. See [Class application window: chapter [How to make a instance be member]]

The following shows a sample of a user defined class: sample.

The variable: sample* base is the pointer of the sample class. Then you can access to the member instance: base->newvlab000 which name is newvlab000 for example.

#include <sample.h>
void sample::event_procedure(WSCbase* object){
  sample* base = (sample*)object->getUserData(WS_BASE_CLASS);
  ...

  //Access the member instance...
  WSCvariant val = base->newvlab000->getProperty(WSNuserValue);
   ...
}

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How to access to the member instances in the method

To access to the member instance in the class event procedure, it needs "base->", but in the method, it does no need "base->".

The following is the sample of a user defined class: sample. Then you can access to the member instance directly: newvlab000 which name is newvlab000 for example.

//a sample of the method.
void sample::method1(long data){
  newvlab000->setProperty(WSNuserValue,data);
  ...
}