oledb32: Implement GetConversionSize, DBTYPE_VARIANT(VT_ARRAY|VT_UI1)->DBTYPE_BYTES.

dlls/oledb32/convert.c

@@ -1364,7 +1364,24 @@ static HRESULT WINAPI convert_GetConversionSize(IDataConvert* iface,
             if(V_VT((VARIANT*)src) == VT_BSTR)
                 *dst_len = (SysStringLen(V_BSTR((VARIANT*)src))) / sizeof(WCHAR);
             else
+            {
+                switch(V_VT((VARIANT*)src))
+                {
+                case VT_UI1 | VT_ARRAY:
+                {
+                    LONG l;
+
+                    hr = SafeArrayGetUBound(V_ARRAY((VARIANT*)src), 1, &l);
+                    if(FAILED(hr))
+                        return hr;
+                    *dst_len = l+1;
+
+                    break;
+                }
+                default:
                     WARN("DBTYPE_VARIANT(%d)->DBTYPE_BYTES unimplemented\n", V_VT((VARIANT*)src));
+                }
+            }
             break;
         default:
             FIXME("unimplemented for %04x -> DBTYPE_BYTES\n", src_type);

dlls/oledb32/tests/convert.c

@@ -2382,6 +2382,8 @@ static void test_getconversionsize(void)
     static WCHAR strW[] = {'t','e','s','t',0};
     static char strTest[] = "test";
     VARIANT var;
+    SAFEARRAY *psa = NULL;
+    SAFEARRAYBOUND rgsabound[1];
 
     /* same way as CanConvert fails here */
     dst_len = 0;
@@ -2478,6 +2480,19 @@ static void test_getconversionsize(void)
     hr = IDataConvert_GetConversionSize(convert, DBTYPE_VARIANT, DBTYPE_BYTES, &src_len, &dst_len, &var);
     ok(hr == S_OK, "got 0x%08x\n", hr);
     VariantClear(&var);
+
+    dst_len = 0;
+    src_len = 20;
+    rgsabound[0].lLbound = 0;
+    rgsabound[0].cElements = 1802;
+    psa = SafeArrayCreate(VT_UI1,1,rgsabound);
+
+    V_VT(&var) = VT_ARRAY|VT_UI1;
+    V_ARRAY(&var) = psa;
+    hr = IDataConvert_GetConversionSize(convert, DBTYPE_VARIANT, DBTYPE_BYTES, &src_len, &dst_len, &var);
+    ok(hr == S_OK, "got 0x%08x\n", hr);
+    ok(dst_len == 1802, "%ld\n", dst_len);
+    VariantClear(&var);
 }
 
 static void test_converttobytes(void)