gdiplus: Implemented GdipDrawCurve2I.

dlls/gdiplus/gdiplus.spec

@@ -164,7 +164,7 @@
 @ stub GdipDrawClosedCurve
 @ stub GdipDrawClosedCurveI
 @ stdcall GdipDrawCurve2(ptr ptr ptr long long)
-@ stub GdipDrawCurve2I
+@ stdcall GdipDrawCurve2I(ptr ptr ptr long long)
 @ stub GdipDrawCurve3
 @ stub GdipDrawCurve3I
 @ stub GdipDrawCurve

dlls/gdiplus/graphics.c

@@ -1059,6 +1059,31 @@ GpStatus WINGDIPAPI GdipDrawCurve2(GpGraphics *graphics, GpPen *pen,
     return retval;
 }
 
+GpStatus WINGDIPAPI GdipDrawCurve2I(GpGraphics *graphics, GpPen *pen,
+    GDIPCONST GpPoint *points, INT count, REAL tension)
+{
+    GpPointF *pointsF;
+    GpStatus ret;
+    INT i;
+
+    if(!points || count <= 0)
+        return InvalidParameter;
+
+    pointsF = GdipAlloc(sizeof(GpPointF)*count);
+    if(!pointsF)
+        return OutOfMemory;
+
+    for(i = 0; i < count; i++){
+        pointsF[i].X = (REAL)points[i].X;
+        pointsF[i].Y = (REAL)points[i].Y;
+    }
+
+    ret = GdipDrawCurve2(graphics,pen,pointsF,count,tension);
+    GdipFree(pointsF);
+
+    return ret;
+}
+
 GpStatus WINGDIPAPI GdipDrawImageI(GpGraphics *graphics, GpImage *image, INT x,
     INT y)
 {