[reactos] 01/03: [SHELL32] Ensure CIDLDataObject::GetData always returns an STGMEDIUM that is safe for use with ReleaseStgMedium

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=6a6a28b6349bbdb42bca39...

commit 6a6a28b6349bbdb42bca39a3295b4a2013e9f100
Author:     Mark Jansen [e-mail]
AuthorDate: Wed Jan 29 21:36:08 2020 +0100
Commit:     Ioannis Adamopoulos [e-mail]
CommitDate: Mon Apr 20 17:36:43 2020 +0300

[SHELL32] Ensure CIDLDataObject::GetData always returns an STGMEDIUM that is safe for use with ReleaseStgMedium
---
 dll/win32/shell32/CIDLDataObj.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dll/win32/shell32/CIDLDataObj.cpp b/dll/win32/shell32/CIDLDataObj.cpp
index 8e1993e2a66..f3366d89a1d 100644
--- a/dll/win32/shell32/CIDLDataObj.cpp
+++ b/dll/win32/shell32/CIDLDataObj.cpp
@@ -236,6 +236,8 @@ HRESULT WINAPI CIDLDataObj::GetData(LPFORMATETC pformatetcIn, STGMEDIUM *pmedium
         GetClipboardFormatNameA (pformatetcIn->cfFormat, szTemp, 256);
         TRACE("(%p)->(%p %p format=%s)\n", this, pformatetcIn, pmedium, szTemp);
     }
+    pmedium->hGlobal = NULL;
+    pmedium->pUnkForRelease = NULL;
     for (int n = 0; n < m_Formats.GetSize(); ++n)
     {
         const FORMATETC& fmt = m_Formats[n];