Solved

Question about COleDropTarget .

Posted on 1998-09-20
5
264 Views
Last Modified: 2013-11-19
Environment: Win95 OSR2 & VC++5

Hi all,
     I have a question about using COleDropTarget to
make a drop-file support app .  My question is ,when a
drag-drop operation is over how to get the file's name
and path in the OnDrop() function ?
     Although I can handle the WM_DROPFILES to get
what I want , I think there also should be these infos in the COleDataObject type object come along with the OnDrop()
function .  

      I'v made below call :
CFile *pFile = pDataObject->GetFileData(CF_HDROP);

It seemed successful and return a value , but I can't get the file's name and path with :  pFile-> GetFilePath () .

      Did I do something wrong ? Can anyone tell me the correct method to do this ?

      Any idea will be greatly appreciated !
0
Comment
Question by:demonP
  • 3
  • 2
5 Comments
 

Author Comment

by:demonP
ID: 1322363
Edited text of question
0
 
LVL 1

Accepted Solution

by:
Andy_Keys earned 50 total points
ID: 1322364
You use the DragQueryFile to get fileneme from the CF_HDROP struct.
0
 

Author Comment

by:demonP
ID: 1322365
Hi Andy,
   Thanks for your answer , could you explain it
more clearly ?
   DragQueryFile() can just accept HDROP handle as
parameter , how can I get it in OnDrop() function ?

0
 
LVL 1

Expert Comment

by:Andy_Keys
ID: 1322366
Sorry I was a bit vague
try something like

FORMATETC fmte = {CF_HDROP,(DVTARGETDEVICE FAR *)NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL };
STGMEDIUM medium;
unsigned int a, uiFiles


HRESULT hres = pDataObject->GetData(this->_pdtobj, &fmte, &medium);
if (SUCCEEDED(hres))
{
HDROP hdrop = medium.hGlobal;
uiFiles = DragQueryFile(hdrop, (UINT)-1, NULL, 0);
char szFile[MAX_PATH];
char szBuf[MAX_PATH*2+64];
//now loop to get the individual names
for(a =0; a < uiFiles; a++ )
{
DragQueryFile(hdrop, a, szFile, sizeof(szFile));
.
}
}
GlobalFree(medium.hGlobal);
This may need a bit of tiding but I hope it helps

0
 

Author Comment

by:demonP
ID: 1322367
Hi Andy,
     I have tried your code , it worked very well .
But it seemed I found a relatively simple method to
do it .

    I just called:
hDropFile = (HDROP)GetGlobalData(CF_HDROP);

Now the handle can be used by DragQueryFile() and
everything is OK ,too .

    Thank you for the answer !

Regards,
Demon.

0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Introduction: Load and Save to file, Document-View interaction inside the SDI. Continuing from the second article about sudoku.   Open the project in visual studio. From the class view select CSudokuDoc and double click to open the header …
Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

760 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now