[reactos] 01/01: [SHELL32] CFSDropTarget: Fix right click menu when shown over the tree view. CORE-11240

[Giannis Adamopoulos]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=1d55f459d6402eb5f97e5…

commit 1d55f459d6402eb5f97e5ebf65a32e24cdd7a13b
Author:     Giannis Adamopoulos <gadamopoulos(a)reactos.org>
AuthorDate: Sat Oct 27 11:53:56 2018 +0300
Commit:     Giannis Adamopoulos <gadamopoulos(a)reactos.org>
CommitDate: Tue Nov 27 12:58:08 2018 +0200

    [SHELL32] CFSDropTarget: Fix right click menu when shown over the tree view.
CORE-11240
---
 dll/win32/shell32/droptargets/CFSDropTarget.cpp | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/dll/win32/shell32/droptargets/CFSDropTarget.cpp
b/dll/win32/shell32/droptargets/CFSDropTarget.cpp
index 41d4bab1c1..641770b37a 100644
--- a/dll/win32/shell32/droptargets/CFSDropTarget.cpp
+++ b/dll/win32/shell32/droptargets/CFSDropTarget.cpp
@@ -206,9 +206,26 @@ HRESULT CFSDropTarget::_GetEffectFromMenu(IDataObject *pDataObject,
POINTL pt, D
 
     /* FIXME: We need to support shell extensions here */
 
+    /* We shouldn't use the site window here because the menu should work even when
we don't have a site */
+    HWND hwndDummy = CreateWindowEx(0,
+                              WC_STATIC,
+                              NULL,
+                              WS_OVERLAPPED | WS_DISABLED | WS_CLIPSIBLINGS | WS_BORDER |
SS_LEFT,
+                              pt.x,
+                              pt.y,
+                              1,
+                              1,
+                              NULL,
+                              NULL,
+                              NULL,
+                              NULL);
+
     UINT uCommand = TrackPopupMenu(hpopupmenu,
                                    TPM_LEFTALIGN | TPM_RETURNCMD | TPM_LEFTBUTTON |
TPM_RIGHTBUTTON | TPM_NONOTIFY,
-                                   pt.x, pt.y, 0, m_hwndSite, NULL);
+                                   pt.x, pt.y, 0, hwndDummy, NULL);
+
+    DestroyWindow(hwndDummy);
+
     if (uCommand == 0)
         return S_FALSE;
     else if (uCommand == IDM_COPYHERE)