gdiplus: Stub GdipMultiplyPenTransform.

dlls/gdiplus/gdiplus.spec

@@ -445,7 +445,7 @@
 @ stdcall GdipMultiplyLineTransform(ptr ptr long)
 @ stdcall GdipMultiplyMatrix(ptr ptr long)
 @ stub GdipMultiplyPathGradientTransform
-@ stub GdipMultiplyPenTransform
+@ stdcall GdipMultiplyPenTransform(ptr ptr long)
 @ stdcall GdipMultiplyTextureTransform(ptr ptr long)
 @ stdcall GdipMultiplyWorldTransform(ptr ptr long)
 @ stdcall GdipNewInstalledFontCollection(ptr)

dlls/gdiplus/pen.c

@@ -419,6 +419,22 @@ GpStatus WINGDIPAPI GdipScalePenTransform(GpPen *pen, REAL sx, REAL sy, GpMatrix
     return NotImplemented;
 }
 
+GpStatus WINGDIPAPI GdipMultiplyPenTransform(GpPen *pen, GDIPCONST GpMatrix *matrix,
+    GpMatrixOrder order)
+{
+    static int calls;
+
+    TRACE("(%p,%p,%u)\n", pen, matrix, order);
+
+    if(!pen)
+        return InvalidParameter;
+
+    if(!(calls++))
+        FIXME("not implemented\n");
+
+    return NotImplemented;
+}
+
 GpStatus WINGDIPAPI GdipSetPenBrushFill(GpPen *pen, GpBrush *brush)
 {
     TRACE("(%p, %p)\n", pen, brush);