windowscodecs: Add stub for DllCanUnloadNow

[André Hentschel]

this obsoletes http://source.winehq.org/patches/data/84324
needed by .Net 4.5 preview
---
 dlls/windowscodecs/main.c             |    5 +++++
 dlls/windowscodecs/windowscodecs.spec |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/dlls/windowscodecs/main.c b/dlls/windowscodecs/main.c
index a6588fd..8dd847e 100644
--- a/dlls/windowscodecs/main.c
+++ b/dlls/windowscodecs/main.c
@@ -49,6 +49,11 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
     return WIC_DllMain(hinstDLL, fdwReason, lpvReserved);
 }
 
+HRESULT WINAPI DllCanUnloadNow(void)
+{
+    return S_FALSE;
+}
+
 HRESULT copy_pixels(UINT bpp, const BYTE *srcbuffer,
     UINT srcwidth, UINT srcheight, INT srcstride,
     const WICRect *rc, UINT dststride, UINT dstbuffersize, BYTE *dstbuffer)
diff --git a/dlls/windowscodecs/windowscodecs.spec b/dlls/windowscodecs/windowscodecs.spec
index d0b6a7e..71022cb 100644
--- a/dlls/windowscodecs/windowscodecs.spec
+++ b/dlls/windowscodecs/windowscodecs.spec
@@ -1,3 +1,4 @@
+@ stdcall -private DllCanUnloadNow()
 @ stdcall -private DllGetClassObject(ptr ptr ptr)
 @ stdcall -private DllRegisterServer()
 @ stdcall -private DllUnregisterServer()
-- 

Best Regards, André Hentschel
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