I made one of these things recently and with editor support, check the code bellow for more information:
}
void FRemReflectedFunctionCallDataDetails::OnFunctionNameChanged(const FPropertyChangedEvent& PropertyChangedEvent) const
{
RemCheckVariable(FunctionCallDataPropertyHandle, return;);
auto* FunctionCallData{Rem::Editor::GetStructPtr<FRemReflectedFunctionCallData>(FunctionCallDataPropertyHandle.ToSharedRef())};
RemCheckVariable(FunctionCallData, return;);
const auto SavedFunctionName{FunctionCallData->FunctionData.FunctionName};
FunctionCallData->TryFillParameters();
if (bool bFunctionNameGotRest = !SavedFunctionName.IsNone() && FunctionCallData->FunctionData.FunctionName.IsNone())
{
FNotificationInfo Info(NSLOCTEXT("RemReflectedFunctionCallData", "FunctionIsNotSupported", "Parameter of selected function is not supported"));
Info.bUseThrobber = true;
Info.Image = FAppStyle::GetBrush(FName{TEXTVIEW("MessageLog.Warning")});
Info.FadeOutDuration = 4.0f;
Info.ExpireDuration = Info.FadeOutDuration;
FSlateNotificationManager::Get().AddNotification(Info);
}
{
RemCheckCondition(LocalFunction->HasAllFunctionFlags(EFunctionFlags::FUNC_Static), return;, LogRemCommon, Error,
TEXT("ContextObject is required for member function"));
LocalObject = GetMutableDefault<UObject>(FunctionData.FunctionOwnerClass);
}
LocalObject->ProcessEvent(LocalFunction, Parameters.GetMutableValue().GetMemory());
}
bool FRemReflectedFunctionCallData::TryFillParameters()
{
Parameters.Reset();
if (!FunctionData.FunctionOwnerClass || FunctionData.FunctionName.IsNone())
{
return false;
}
auto* Function = FunctionData.FunctionOwnerClass->FindFunctionByName(FunctionData.FunctionName);
RemCheckVariable(Function, return false;);
RemReflectedFunctionCallData which support calling a static or memberUFUNCTION, with almost any parameters(except parameter of delegate type (or more) for now because of limitation of FInstancedPropertyBag), and has return value.
I’m searching for populating default value for these parameters ATM.