gdiplus: Implement GdipLoadImageFromFile.

dlls/gdiplus/gdiplus.spec

@@ -435,7 +435,7 @@
 @ stub GdipIsVisibleRegionPointI
 @ stub GdipIsVisibleRegionRect
 @ stub GdipIsVisibleRegionRectI
-@ stub GdipLoadImageFromFile
+@ stdcall GdipLoadImageFromFile(wstr ptr)
 @ stub GdipLoadImageFromFileICM
 @ stdcall GdipLoadImageFromStream(ptr ptr)
 @ stdcall GdipLoadImageFromStreamICM(ptr ptr)

dlls/gdiplus/image.c

@@ -697,6 +697,27 @@ GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
     return Ok;
 }
 
+GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
+                                          GpImage **image)
+{
+    GpStatus stat;
+    IStream *stream;
+
+    if (!filename || !image)
+        return InvalidParameter;
+
+    stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
+
+    if (stat != Ok)
+        return stat;
+
+    stat = GdipLoadImageFromStream(stream, image);
+
+    IStream_Release(stream);
+
+    return stat;
+}
+
 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
 {
     IPicture *pic;

dlls/gdiplus/tests/image.c

@@ -114,6 +114,12 @@ static void test_LoadingImages(void)
 
     stat = GdipCreateBitmapFromFile(0, (GpBitmap**)0xdeadbeef);
     expect(InvalidParameter, stat);
+
+    stat = GdipLoadImageFromFile(0, 0);
+    expect(InvalidParameter, stat);
+
+    stat = GdipLoadImageFromFile(0, (GpImage**)0xdeadbeef);
+    expect(InvalidParameter, stat);
 }
 
 START_TEST(image)