• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 283
  • Last Modified:

CRichEditView drop file

How can I make my Rich  Edit view accept dropped files like Notepad does? i.e.; immediately render it it plain text instead of creating an OLE object.
0
midthune
Asked:
midthune
1 Solution
 
Tommy HuiCommented:
You'll need to do a couple of things:

1. Derive a new class from CRichEditView.

2. Override QueryAcceptData to return TRUE if the object supports the format CF_TEXT:


HRESULT CDrvLayView::QueryAcceptData(LPDATAOBJECT lpdataobj, CLIPFORMAT* lpcfFormat,
        DWORD dwReco, BOOL bReally, HGLOBAL hMetaPict)
{
        if (lpcfFormat == NULL)
                return S_FALSE;

        if (!bReally)
                return S_OK;

        COleDataObject obj;
        obj.Attach(lpdataobj);
        if (obj.IsDataAvailable(CF_TEXT))
        {
                *lpcfFormat = CF_TEXT;
                obj.Detach();
                return S_OK;
        }
        else
        {
                obj.Detach();
        }

        TRACE("format = %d\r\n", *lpcfFormat);

        if (*lpcfFormat == CF_TEXT)
                return CRichEditView::QueryAcceptData(lpdataobj, lpcfFormat, dwReco,
                        bReally, hMetaPict);
        else
                return S_FALSE;
}
0
 
midthuneAuthor Commented:
Silly me. You had answered this question for me before, but my app would only accept text dragged from other apps, not files. Gee, could this have anything to do with the fact that I had never called DragAcceptFiles()? :)
    You've answered my question but would you be so kind as to let me know if there is an easy way to insert the dropped file's text in the open view (at the dropped point without erasing what's currently there) this is an MDI app and the dropped files only work when they are dropped on the frame, not in a view.
    I would ask another question but I only have 25 points left. I would understand if you do not wish to answer this second question. If you do, I will ask a non-question and give you all of my current points when you respond.
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now