Vincent Povirk : windowscodecs: Implement IWICBitmapScaler::GetResolution.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e4f8ab605e24df0bdd79bb1d2fa8f67145cbe4c0
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=e4f8ab605e24df0bdd79bb1d2fa8f67145cbe4c0

Author: Vincent Povirk <vincent at codeweavers.com>
Date:   Tue Feb 28 16:32:31 2012 -0600

windowscodecs: Implement IWICBitmapScaler::GetResolution.

---

 dlls/windowscodecs/scaler.c |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/dlls/windowscodecs/scaler.c b/dlls/windowscodecs/scaler.c
index 2289a9d..511968c 100644
--- a/dlls/windowscodecs/scaler.c
+++ b/dlls/windowscodecs/scaler.c
@@ -135,9 +135,16 @@ static HRESULT WINAPI BitmapScaler_GetPixelFormat(IWICBitmapScaler *iface,
 static HRESULT WINAPI BitmapScaler_GetResolution(IWICBitmapScaler *iface,
     double *pDpiX, double *pDpiY)
 {
-    FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
+    BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
+    TRACE("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
 
-    return E_NOTIMPL;
+    if (!pDpiX || !pDpiY)
+        return E_INVALIDARG;
+
+    if (!This->source)
+        return WINCODEC_ERR_WRONGSTATE;
+
+    return IWICBitmapSource_GetResolution(This->source, pDpiX, pDpiY);
 }
 
 static HRESULT WINAPI BitmapScaler_CopyPalette(IWICBitmapScaler *iface,