IPB_Session interface:
SetString method
Description
Frees an existing string and assigns a new string value to it by performing a deep copy.
Syntax
SetString (pbstring string, LPCTSTR src)
Argument |
Description |
|---|---|
string |
A valid pbstring variable whose value is to be replaced |
src |
The string to be assigned to string |
Return Values
PBXRESULT. Returns PBX_OK for success or PBX_E_INVALID_ARGUMENT if the new string value is invalid; otherwise, returns PBX_E_OUTOF_MEMORY.
Examples
This example uses the IPB_Session SetString method to set the ret_val string to the return value in the PBCallInfo structure. It also uses the IPB_Value SetPBString method to set values in PBCallInfo:
pbclass cls;
pbmethodID mid;
PBCallInfo* ci = new PBCallInfo;
pbstring ret_val;
LPCTSTR pStr;
cls= Session -> GetClass(myobj);
if (isAny)
mid=Session-> GetMethodID(cls, "uf_any_byvalue",
PBRT_FUNCTION, "AAAAA");
else
mid=Session-> GetMethodID(cls, "uf_string_byvalue",
PBRT_FUNCTION, "SSSSS");
Session-> InitCallInfo(cls, mid, ci);
ci-> pArgs -> GetAt(0) -> SetPBString(s_low);
ci-> pArgs -> GetAt(1) -> SetPBString(s_mid);
ci-> pArgs -> GetAt(2) -> SetPBString(s_high);
pStr = Session -> GetString(s_null);
if (pStr != 0)
{
if (strcmp(pStr, "null") == 0 )
ci-> pArgs -> GetAt(3) -> SetToNull();
else
ci-> pArgs -> GetAt(3) -> SetPBString(s_null);
}
Session -> InvokeObjectFunction(myobj, mid, ci);
ret_val = Session -> NewString("");
Session -> SetPBString(ret_val, Session->GetString
(ci->returnValue->GetString()));
Session -> FreeCallInfo(ci);
delete ci;
return ret_val;
Usage
A deep copy is performed. The existing value is destroyed first, and then the contents of the src argument are copied into a new value.