[ARX程序]：ARX程序中用MFC作成的对话框中如何插入DWG文件，大虾请指点一二。

chxmhsd

ARX程序中用MFC作成的对话框如何插入DWG文件，
要求实时生成，当然不能BMP。大虾指教

fastdev

code:
Include File

dbmain.h

Adesk::Boolean

acdbDisplayPreviewFromDwg(
    const char *pszDwgfilename,

    void* pPreviewWnd);

pszDwgfilename        Input path\filename string
pPreviewWnd        Input HWND for window within which to display preview

This function obtains the preview image (if any) of the drawing specified by pszDwgfilename and displays it in the window identified by the HWND argument pPreviewWnd.
The image size varies up to a maximum size no larger than 256 x 188 pixels. If the pPreviewWnd window is larger than the image, then the image will be stretched to fit. But, if the window is smaller than the image, the image will not be adjusted and will spill out beyond the window's borders.

Returns Adesk::kTrue if successful, otherwise it returns Adesk::kFalse.

chxmhsd

Many thanks for your so kind help.

chxmhsd

我用了这个Function,也返回True,DWG图形但是还是什么也没显示出来。对话框需要什么操作么？
大虾能给个例子么？
谢谢了。

dwjnet

用控件
上传一个VB的程序，VC的（arx）正在写。

ymd

AcDbObjectId insBK(char *file,char *kname)
{
AcDbObjectId id;
AcDbBlockTable *pTb;
acdbCurDwg()->getBlockTable(pTb,AcDb::kForRead);
if(pTb->getAt(kname,id)==Acad::eOk){
   pTb->close();
   //ads_printf("\n%s 已存在",kname);
   return id;
   }
pTb->close();
AcDbDatabase *pDb=new AcDbDatabase(Adesk::kFalse);
if(pDb->readDwgFile(file)!=Acad::eOk){
  delete pDb;
  return NULL;
  }
acdbCurDwg()->insert(id,kname,pDb);
delete pDb;
return id;
}
其中：file 要插入的文件名（含路径），kname 插入后在当前图形中的块名