InvokeObjectFunction

PowerBuilder Native Interface

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IPB_Session interface:

InvokeObjectFunction method

Description

Invokes a class member method.

Syntax

InvokeObjectFunction(pbobject obj, pbmethodID mid, PBCallInfo *ci)

Argument	Description
obj	The pbobject containing the method
mid	The pbMethodID returned by GetMethodID
ci	A pointer to a preallocated PBCallInfo structure

Return Values

PBXRESULT. Returns PBX_OK for success, or one of the following for failure:

PBX_E_INVALID_ARGUMENT
PBX_E_INVOKE_METHOD_INACCESSABLE
PBX_E_INVOKE_WRONG_NUM_ARGS
PBX_E_INVOKE_REFARG_ERROR
PBX_E_INVOKE_METHOD_AMBIGUOUS
PBX_E_INVOKE_FAILURE
PBX_E_INVOKE_FAILURE

Examples

This code invokes the DataWindow Update function and returns its integer return value:

pbclass cls;
pbmethodID mid;
PBCallInfo* ci = new PBCallInfo;
pbint ret_val;
 
cls = session->GetClass(dwobj);
mid = session->GetMethodID
   (cls, "Update", PBRT_FUNCTION, "I");
session->InitCallInfo(cls, mid, ci);
 
session->InvokeObjectFunction(dwobj, mid, ci);
 
ret_val = ci.returnValue->GetInt();
session->FreeCallInfo(ci);
delete ci;
return ret_val;