[PATCH 5/6] winex11: Use IDataObject to get CF_HDROP format for WM_DROPFILES.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winex11.drv/xdnd.c | 30 +++++++++---------------------
 1 file changed, 9 insertions(+), 21 deletions(-)

diff --git a/dlls/winex11.drv/xdnd.c b/dlls/winex11.drv/xdnd.c
index ccebaf5c617..27b7a24af56 100644
--- a/dlls/winex11.drv/xdnd.c
+++ b/dlls/winex11.drv/xdnd.c
@@ -601,45 +601,33 @@ static BOOL X11DRV_XDND_HasHDROP(void)
  */
 static HRESULT X11DRV_XDND_SendDropFiles(HWND hwnd)
 {
-    struct format_entry *iter;
+    FORMATETC format = {.cfFormat = CF_HDROP};
+    STGMEDIUM medium;
     HRESULT hr;
-    BOOL found = FALSE;
-    HGLOBAL hglobal;

EnterCriticalSection(&xdnd_cs);

-    for (iter = xdnd_formats; iter < xdnd_formats_end; iter = next_format( iter ))
-    {
-         if (iter->format == CF_HDROP)
-         {
-             found = TRUE;
-             break;
-         }
-    }
-    if (!found) hr = E_FAIL;
-    else if (!(hglobal = GlobalAlloc( GMEM_FIXED, iter->size ))) hr = HRESULT_FROM_WIN32(GetLastError());
-    else
+    if (!xdnd_formats) hr = E_FAIL;
+    else if (SUCCEEDED(hr = IDataObject_GetData( &xdnd_data_object, &format, &medium )))
     {
-        DROPFILES *drop = GlobalLock( hglobal );
-        void *files;
+        DROPFILES *drop = GlobalLock( medium.hGlobal );
+        void *files = (char *)drop + drop->pFiles;
         RECT rect;

-        memcpy( drop, iter->data, iter->size );
-        files = (char *)drop + drop->pFiles;
         drop->pt.x = XDNDxy.x;
         drop->pt.y = XDNDxy.y;
         drop->fNC  = !ScreenToClient( hwnd, &drop->pt ) || !GetClientRect( hwnd, &rect ) || !PtInRect( &rect, drop->pt );

TRACE( "Sending WM_DROPFILES: hwnd %p, pt %s, fNC %u, files %p (%s)\n", hwnd,
                wine_dbgstr_point( &drop->pt), drop->fNC, files, debugstr_w(files) );
-        GlobalUnlock( hglobal );
+        GlobalUnlock( medium.hGlobal );

-        if (PostMessageW( hwnd, WM_DROPFILES, (WPARAM)hglobal, 0 ))
+        if (PostMessageW( hwnd, WM_DROPFILES, (WPARAM)medium.hGlobal, 0 ))
             hr = S_OK;
         else
         {
             hr = HRESULT_FROM_WIN32(GetLastError());
-            GlobalFree( hglobal );
+            GlobalFree( medium.hGlobal );
         }
     }