C / C++ / MFC

Re: database connection problem.

25-Apr-07 2:51

david bagaturia wrote:
...but I have Error message wen I Build it.

Such as?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Hamid_RT25-Apr-07 6:47

Hamid_RT

25-Apr-07 6:47

Again its difficult to guess you said "when you Build it" I cant say anything need to more info.

WhiteSky

CFileDialog

Try23-Apr-07 20:24

23-Apr-07 20:24

I am seeing an unusual behavior with a CListCtrl API on a CFileDialog, only
on VISTA. I have a call like GetItemData on the list control which is
supposed to return the item as a LPCITEMIDLIST but it always returns NULL
only on a VISTA OS. Windows XP is fine.

Can anyone help me on this one?

David Crow24-Apr-07 3:10

24-Apr-07 3:10

BeliefInMe wrote:
Can anyone help me on this one?

Without a snippet showing the offending code?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try24-Apr-07 3:20

24-Apr-07 3:20

Code's here

LPNMLISTVIEW phdr = NULL;
phdr = reinterpret_cast<LPNMLISTVIEW>(lParam);
CListCtrl lc;
lc.Attach(phdr->hdr.hwndFrom);
LPCITEMIDLIST pidl = (LPCITEMIDLIST) lc.GetItemData(phdr->iItem);
SHGetPathFromIDList(pidl, str);

pidl is NULL. Hence i am not able to get File Path.
if i use GetItemText, i will get only file name without extension.
Any Solution. Or any other way to follow..
This works in XP but not in Vista.

David Crow24-Apr-07 3:29

24-Apr-07 3:29

This is in response to what (notification) message? Are you using a hook with CFileDialog? Do you have file extensions (in Windows Explorer) turned off?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try24-Apr-07 3:52

24-Apr-07 3:52

Yes, you are right..
I am using Hook and OnNotify.

David Crow24-Apr-07 4:11

24-Apr-07 4:11

BeliefInMe wrote:
I am using...OnNotify.

Which LVN_xxx notification?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try24-Apr-07 5:04

24-Apr-07 5:04

See the link
http://www.codeproject.com/dialog/imagepreviewdialog.asp[^]
I am executing same application..

David Crow24-Apr-07 5:25

24-Apr-07 5:25

At the point pidl is NULL, what is the value of phdr->iItem?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try24-Apr-07 18:31

24-Apr-07 18:31

phdr->iItem is showing corect value... The value depends upon which image i select.

David Crow25-Apr-07 2:26

25-Apr-07 2:26

BeliefInMe wrote:
phdr->iItem is showing corect value...

Is it ever -1?

Are you verifying that phdr->hdr.code is equal to LVN_ITEMCHANGED?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try25-Apr-07 2:37

25-Apr-07 2:37

ya its like

if (pLVHdr->hdr.code ==	LVN_ITEMCHANGED && (pLVHdr->uChanged & LVIF_STATE))

and iItem is never -1

Try25-Apr-07 2:41

25-Apr-07 2:41

Instead of LPNMLISTVIEW, i used LPLVITEM.
LPLVITEM lv = = reinterpret_cast<LPLVITEM>(lParam);
lv.lParam is also zero.

David Crow25-Apr-07 2:50

25-Apr-07 2:50

BeliefInMe wrote:
Instead of LPNMLISTVIEW, i used LPLVITEM.
LPLVITEM lv = = reinterpret_cast<lplvitem>(lParam);
lv.lParam is also zero.

So have you tried casting to a LPNMLISTVIEW instead?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try25-Apr-07 3:01

25-Apr-07 3:01

DavidCrow wrote:
So have you tried casting to a LPNMLISTVIEW instead?

I have casted to LPLVITEM.
I think it cannot convert from 'LPNMLISTVIEW' to 'LPLVITEMW'.

David Crow25-Apr-07 3:08

25-Apr-07 3:08

BeliefInMe wrote:
I think it cannot convert from 'LPNMLISTVIEW' to 'LPLVITEMW'.

Why would you think this would work? They are two different structures. Use LPNMLISTVIEW like the documentation states.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try25-Apr-07 3:33

25-Apr-07 3:33

I am afraid, i am confusing you.. I said instead of

LPNMLISTVIEW pLVHdr	= reinterpret_cast<LPNMLISTVIEW>(lParam);

i used

LPLVITEM pLVHdr	= reinterpret_cast<LPLVITEM>(lParam);

David Crow25-Apr-07 3:40

25-Apr-07 3:40

But why, since LPNMLISTVIEW and LPLVITEM are two different structures. The documentaton plainly states that the lparam that accompanies the LVN_ITEMCHANGED notificaton is a pointer to a NMLISTVIEW structure, not a pointer to a LVITEM as you are trying to use.

That said, I do not know why your code "works" on Windows XP but not on Vista. I do not have the latter to test on.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Try25-Apr-07 3:41

25-Apr-07 3:41

I think, i am disturbing you.
Anyways Thank you very much for your time and help.

Try25-Apr-07 2:45

25-Apr-07 2:45

pidl = (LPCITEMIDLIST) ctl.GetItemData(pLVHdr->iItem);
SHGetPathFromIDList(pidl, tszBuffer);

pidl is '0x000000'. Hence tszBuffer is "".

Try25-Apr-07 3:06

25-Apr-07 3:06

As i said, GetItemData returns NULL, hence i used SendMessage() but in vain.