[ARX程序]：程序实现插入文本，但出现了错误。

bluesolar

想由程序实现插入文本，但出现了错误。
程序如下：
// AsdkTextStyleSamp.h: interface for the AsdkTextStyleSamp class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_ASDKTEXTSTYLESAMP_H__3308094C_A54B_40F3_9796_E0425A7456D9__INCLUDED_)
#define AFX_ASDKTEXTSTYLESAMP_H__3308094C_A54B_40F3_9796_E0425A7456D9__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class AsdkTextStyleSamp : public AcDbEntity  
{
public:

        virtual Adesk::Boolean worldDraw(AcGiWorldDraw *,AcGePoint3d pos,AcGeVector3d norm,AcGeVector3d dir,char* pStr);

        virtual ~AsdkTextStyleSamp();


};

#endif // !defined(AFX_ASDKTEXTSTYLESAMP_H__3308094C_A54B_40F3_9796_E0425A7456D9__INCLUDED_)
// AsdkTextStyleSamp.cpp: implementation of the AsdkTextStyleSamp class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "resource.h"
#include "AsdkTextStyleSamp.h"
#include <string.h>
#include <stdio.h>
#include "aced.h"
#include "dbsymtb.h"
#include "dbapserv.h"
#include "acgi.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
//Acad::ErrorStatus AsdkTextStyleSamp::transformBy(
//    const AcGeMatrix3d &xfm)
//{
//    return Acad::eOk;
//}
//ACRX_DXF_DEFINE_MEMBERS(AsdkTextStyleSamp,AcDbEntity,
//AcDb::kDHL_CURRENT, AcDb::kMReleaseCurrent, 0,\
//    ASDKTEXTSTYLESAMP,AsdkTextStyle Sample);

Adesk::Boolean
AsdkTextStyleSamp::worldDraw(AcGiWorldDraw* pW,AcGePoint3d pos,AcGeVector3d norm,AcGeVector3d dir,char* pStr)
{
    int len = strlen(pStr);
    AcGiTextStyle style;
    AcGeVector3d vec = norm;
    vec = vec.crossProduct(dir);
    dir = vec.crossProduct(norm);
    style.setFileName("txt.shx");
    style.setBigFontFileName("");
    int status;
    if (!((status = style.loadStyleRec()) & 1))
        pStr = "Font not found.";
    pW->geometry().text(pos, norm, dir, pStr, len,
        Adesk::kFalse, style);
    pos.y += 2.0;
    style.setTrackingPercent(80.0);
    style.setObliquingAngle(10.0);
    pW->geometry().text(pos, norm, dir, pStr, len,
        Adesk::kFalse, style);
        AsdkTextStyleSamp *pNewObj = new AsdkTextStyleSamp;
    AcDbBlockTable *pBlockTable;
    acdbHostApplicationServices()->workingDatabase()
        ->getSymbolTable(pBlockTable, AcDb::kForRead);
    AcDbBlockTableRecord *pBlock;
    pBlockTable->getAt(ACDB_MODEL_SPACE, pBlock,
        AcDb::kForWrite);
    AcDbObjectId objId;
    pBlock->appendAcDbEntity(objId, pNewObj);
    pBlockTable->close();
    pBlock->close();
    pNewObj->close();
    return Adesk::kTrue;
}

AsdkTextStyleSamp::~AsdkTextStyleSamp()
{
}
//命令部分摘要：
AcGePoint3d pos(4.0, 4.0, 0.0);
AcGeVector3d norm(0.0, 0.0, 1.0);
AcGeVector3d dir(1.0, 1.0, 0.0);
char* pStr= "This is a pen";
AsdkTextStyleSamp tSamp;
AcGiWorldDraw* pW;
tSamp.worldDraw(pW,pos,norm,dir,pStr);
//。。。。
Compiling...
qweCommands.cpp
D:\rail\qwe\qweCommands.cpp(121) : warning C4700: local variable 'pW' used without having been initialized
Linking...
- 0 error(s), 1 warning(s)
执行时，看不见文本，
不知错在何处，恳请指教
不胜感激！

leyou12250

local variable 'pW' used without having been initialized