comdlg32: ::SetFileTypeIndex and ::GetFileTypeIndex uses a one-based index.

dlls/comdlg32/itemdlg.c

@@ -1880,10 +1880,9 @@ static HRESULT WINAPI IFileDialog2_fnSetFileTypeIndex(IFileDialog2 *iface, UINT
     if(!This->filterspecs)
         return E_FAIL;
 
-    if(iFileType >= This->filterspec_count)
-        This->filetypeindex = This->filterspec_count - 1;
-    else
-        This->filetypeindex = iFileType;
+    iFileType = max(iFileType, 1);
+    iFileType = min(iFileType, This->filterspec_count);
+    This->filetypeindex = iFileType-1;
 
     return S_OK;
 }
@@ -1896,7 +1895,10 @@ static HRESULT WINAPI IFileDialog2_fnGetFileTypeIndex(IFileDialog2 *iface, UINT
     if(!piFileType)
         return E_INVALIDARG;
 
-    *piFileType = This->filetypeindex;
+    if(This->filterspec_count == 0)
+        *piFileType = 0;
+    else
+        *piFileType = This->filetypeindex + 1;
 
     return S_OK;
 }

dlls/comdlg32/tests/itemdlg.c

@@ -643,8 +643,6 @@ static void test_basics(void)
     hr = IFileOpenDialog_SetFileTypes(pfod, 0, filterspec);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
 
-    hr = IFileOpenDialog_SetFileTypeIndex(pfod, -1);
-    ok(hr == E_FAIL, "got 0x%08x.\n", hr);
     hr = IFileOpenDialog_SetFileTypeIndex(pfod, 0);
     ok(hr == E_FAIL, "got 0x%08x.\n", hr);
     hr = IFileOpenDialog_SetFileTypeIndex(pfod, 1);
@@ -655,25 +653,39 @@ static void test_basics(void)
     ok(hr == E_UNEXPECTED, "got 0x%08x.\n", hr);
     hr = IFileOpenDialog_SetFileTypeIndex(pfod, 0);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
+    hr = IFileOpenDialog_GetFileTypeIndex(pfod, &filetype);
+    ok(hr == S_OK, "got 0x%08x.\n", hr);
+    ok(filetype == 1, "got %d\n", filetype);
     hr = IFileOpenDialog_SetFileTypeIndex(pfod, 100);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
+    hr = IFileOpenDialog_GetFileTypeIndex(pfod, &filetype);
+    ok(hr == S_OK, "got 0x%08x.\n", hr);
+    ok(filetype == 1, "got %d\n", filetype);
     hr = IFileOpenDialog_SetFileTypes(pfod, 1, filterspec);
     ok(hr == E_UNEXPECTED, "got 0x%08x.\n", hr);
     hr = IFileOpenDialog_SetFileTypes(pfod, 1, &filterspec[1]);
     ok(hr == E_UNEXPECTED, "got 0x%08x.\n", hr);
 
-    hr = IFileSaveDialog_SetFileTypeIndex(pfsd, -1);
-    ok(hr == E_FAIL, "got 0x%08x.\n", hr);
     hr = IFileSaveDialog_SetFileTypeIndex(pfsd, 0);
     ok(hr == E_FAIL, "got 0x%08x.\n", hr);
     hr = IFileSaveDialog_SetFileTypeIndex(pfsd, 1);
     ok(hr == E_FAIL, "got 0x%08x.\n", hr);
-    hr = IFileSaveDialog_SetFileTypes(pfsd, 1, filterspec);
+    hr = IFileSaveDialog_SetFileTypes(pfsd, 2, filterspec);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
+    hr = IFileSaveDialog_GetFileTypeIndex(pfsd, &filetype);
+    ok(hr == S_OK, "got 0x%08x.\n", hr);
+    /* I hope noone relies on this one */
+    todo_wine ok(filetype == 0, "got %d\n", filetype);
     hr = IFileSaveDialog_SetFileTypeIndex(pfsd, 0);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
+    hr = IFileSaveDialog_GetFileTypeIndex(pfsd, &filetype);
+    ok(hr == S_OK, "got 0x%08x.\n", hr);
+    ok(filetype == 1, "got %d\n", filetype);
     hr = IFileSaveDialog_SetFileTypeIndex(pfsd, 100);
     ok(hr == S_OK, "got 0x%08x.\n", hr);
+    hr = IFileSaveDialog_GetFileTypeIndex(pfsd, &filetype);
+    ok(hr == S_OK, "got 0x%08x.\n", hr);
+    ok(filetype == 2, "got %d\n", filetype);
     hr = IFileSaveDialog_SetFileTypes(pfsd, 1, filterspec);
     ok(hr == E_UNEXPECTED, "got 0x%08x.\n", hr);
     hr = IFileSaveDialog_SetFileTypes(pfsd, 1, &filterspec[1]);