Description
The IPBX_UserObject interface is the ancestor class of the PowerBuilder native classes.
Methods
IPBX_UserObject has two methods: Destroy and Invoke
Description
Destroys the current instance of a PowerBuilder native class that inherits from IPBX_UserObject.
Syntax
Destroy( )
Return value
None.
Examples
This example shows how you would call Destroy for the class MyPBNIClass:
void MyPBNIClass::Destroy()
{
delete this;
}Usage
You must implement this method in the native class after creating an instance of the class and invoking remote methods.
See also
Description
Calls methods in PowerBuilder native classes.
Syntax
Invoke(IPB_Session * session, pbobject obj, pbmethodID mid, PBCallInfo *ci)
|
Argument |
Description |
|---|---|
|
session |
This IPB session |
|
obj |
The PowerBuilder extension object to be invoked |
|
mid |
The pbMethodID returned by GetMethodID |
|
ci |
The parameters and return value setting for the call |
Return value
PBXRESULT.PBX_OK for success.
Examples
In this example, the method invoked depends on the value (0, 1, or 2) of the method ID returned from the GetMethodID method:
PBXRESULT PBNIExt::Invoke
(
IPB_Session* session,
pbobject obj,
pbmethodID mid,
PBCallInfo* ci
)
{
PBXRESULT result = PBX_OK;
switch (mid)
{
case mFuncA:
result = FuncA(session, obj, ci);
break;
case mFuncB:
result = FuncB(session, obj, ci);
break;
case mFuncC:
result = FuncC(session, obj, ci);
break;
default:
result = PBX_E_INVOKE_FAILURE;
break;
}
return PBX_OK;
}See also
