Re: [4/4] ole32: Fix IDataObject_GetDataHere may not implement

[Huw Davies]

On Wed, Apr 26, 2017 at 03:45:50PM +0800, Wei Xie wrote:
> Fix cann't insert any HBITMAP in RichEdit control
> From 2c5a9b4df394c6d50bcc24bcc7b489a864224155 Mon Sep 17 00:00:00 2001
> From: Wei xie <xiewei(a)linuxdeepin.com>
> Date: Wed, 26 Apr 2017 15:24:00 +0800
> Subject: [PATCH 4/4] ole32: Fix IDataObject_GetDataHere may not implement
>
> Fix cann't insert any HBITMAP in RichEdit control
>
> Signed-off-by: Wei xie <xiewei(a)linuxdeepin.com>
> ---
>  dlls/ole32/ole2impl.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/dlls/ole32/ole2impl.c b/dlls/ole32/ole2impl.c
> index a0c4445..5ee031e 100644
> --- a/dlls/ole32/ole2impl.c
> +++ b/dlls/ole32/ole2impl.c
> @@ -115,6 +115,10 @@ static HRESULT get_storage(IDataObject *data, IStorage *stg, UINT *src_cf, BOOL
>      med.u.pstg = stg;
>      med.pUnkForRelease = NULL;
>      hr = IDataObject_GetDataHere(data, &fmt, &med);
> +    if (FAILED(hr))
> +    {
> +        hr = IDataObject_GetData(data, &fmt, &med);
> +    }

This can't work.  The STGMEDIUM is an [out]-only parameter
of _GetData(), meaning that the callee will return a new
stg in the STGMEDIUM.  If this is indeed called (we need
tests to check), then you'd have to copy the returned stg
into the original one.

Huw.