shell32: Add SHPathPrepareForWrite and related constants.

include/shlobj.h

@@ -59,6 +59,9 @@ BOOL         WINAPI SHGetPathFromIDListW(LPCITEMIDLIST,LPWSTR);
 INT          WINAPI SHHandleUpdateImage(LPCITEMIDLIST);
 HRESULT      WINAPI SHILCreateFromPath(LPCWSTR,LPITEMIDLIST*,DWORD*);
 HRESULT      WINAPI SHLoadOLE(LPARAM);
+HRESULT      WINAPI SHPathPrepareForWriteA(HWND,IUnknown*,LPCSTR,DWORD);
+HRESULT      WINAPI SHPathPrepareForWriteW(HWND,IUnknown*,LPCWSTR,DWORD);
+#define             SHPathPrepareForWrite WINELIB_NAME_AW(SHPathPrepareForWrite);
 UINT         WINAPI SHReplaceFromPropSheetExtArray(HPSXA,UINT,LPFNADDPROPSHEETPAGE,LPARAM);
 LPITEMIDLIST WINAPI SHSimpleIDListFromPath(LPCWSTR);
 int          WINAPI SHMapPIDLToSystemImageListIndex(IShellFolder*,LPCITEMIDLIST,int*);
@@ -78,6 +81,15 @@ int          WINAPI RestartDialogEx(HWND,LPCWSTR,DWORD,DWORD);
 #define SHFMT_OPT_FULL		1
 #define SHFMT_OPT_SYSONLY	2
 
+/* SHPathPrepareForWrite flags */
+#define SHPPFW_NONE             0x00000000
+#define SHPPFW_DIRCREATE        0x00000001
+#define SHPPFW_DEFAULT          SHPPFW_DIRCREATE
+#define SHPPFW_ASKDIRCREATE     0x00000002
+#define SHPPFW_IGNOREFILENAME   0x00000004
+#define SHPPFW_NOWRITECHECK     0x00000008
+#define SHPPFW_MEDIACHECKONLY   0x00000010
+
 /* SHObjectProperties flags */
 #define SHOP_PRINTERNAME 0x01
 #define SHOP_FILEPATH    0x02