Qt调用CodeSoft打标签问题

[zxw0558]

在Win32平台下做打标签，总是不成功，请高手指点。代码如下

void PrintLabel::label_returnPressed()
{
	if(!lppx)//lppx init ok
	{
		ui.label->setText("lppx init fail.");

		return;
	}

	
	QAxObject *docs = lppx->querySubObject("Documents");//docs not null,ok
	docs->dynamicCall("CloseAll(bool)",false);//ok
	//QAxObject *lppxDoc = docs->querySubObject("Open(QString,bool)","C:\\label.lab",false);//lppxDoc not null,ok
		docs->dynamicCall("Open(QString,bool)","C:\\label.lab",false);//Open OK
	
	//qDebug()<<lppxDoc->dynamicCall("FullName").toString();//""
	QAxObject *lppxDoc = lppx->querySubObject("ActiveDocument");//lppxDoc not null
	qDebug()<<lppx->querySubObject("ActiveDocument")->property("FullName").toString();//output "",reason??
	qDebug()<<docs->querySubObject("Item(QString)","label.lab")->property("FullName").toString();//also ""
	QAxObject *vars = lppxDoc->querySubObject("Variables");
	
	QAxObject *var1 = vars->querySubObject("Item(QString)","var1");
	qDebug()<<var1->property("Value").toString();
	var1->setProperty("Value",ui.lineEdit->text());// set value fail
	//lppx->setProperty("Visible",true);

	//lppxDoc->dynamicCall("PrintDocument()");
}

[zxw0558]

看样子没人会啊还是没人用过啊

[zxw0558]

难道是分数给的太低了，只要高手能解决可加分。