I am developing 64-bit Windows program and need to use CListCtrl and CTreeCtrl.
But there are following sentences in MSDN:
CListCtrl::SetItemData
http://msdn2.microsoft.com/en-us/library/936147y4.aspx
BOOL SetItemData(
int nItem,
DWORD_PTR dwData
);
Sets the 32-bit application-specific value associated with the item
specified by nItem.

Similar sentences appear in CListCtrl::GetItemData(),
CListCtrl::InsertItem() and CTreeList::SetItemData(), etc.

How do I understand "32-bit"? Does it mean I cannot pass 64-bit value to it?
or just Microsoft forgot to update these pages?

Where should I get help on this issue?

Jessie:

Your assumption of overlooked documents is correct. The DWORD_PTR type's size depends on the platform (4 bytes on 32bit and 8 bytes on 64bit).

You can use SetItemData on 64bit and 32bit without an issue.

Jeff

Jessie:

Your assumption of overlooked documents is correct. The DWORD_PTR type's size depends on the platform (4 bytes on 32bit and 8 bytes on 64bit).

You can use SetItemData on 64bit and 32bit without an issue.

Jeff

It's 2009 and the following MSDN page still says 32 bits on all architectures:
http://msdn.microsoft.com/en-us/library/936147y4(VS.100).aspx

Will MSDN be corrected some year? Some programmers wish we didn't have to depend on undocumented behaviour.