[求助]：图库预览的程序！

sandf

有哪位知道附件中的图库预览是如何实现的，请指教一下小弟！很急！不胜感激！

HillMan

bool

acdbDisplayPreviewFromDwg(

const char * pszDwgfilename,

void* pPreviewWnd,

const Adesk::UInt32* pBgColor = NULL);

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

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 true if successful; otherwise, it returns false.

sandf

多谢！可是我还有个问题，就是该如何实现象图中那样的一次可以预览多个图形的列表框呢？还请斑竹多多指点，不胜感激！

xux4618

请讲一下吧