gdiplus: make GdipSetPenDashArray return OutOfMemory on (count <= 0) (like native)

[Nikolay Sivov]

Changelog:
    - native version returns OutOfMemory when (count <= 0) and pointers are valid.

---
 dlls/gdiplus/pen.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/dlls/gdiplus/pen.c b/dlls/gdiplus/pen.c
index 7a692e3..a8ec531 100644
--- a/dlls/gdiplus/pen.c
+++ b/dlls/gdiplus/pen.c
@@ -251,6 +251,10 @@ GpStatus WINGDIPAPI GdipSetPenDashArray(GpPen *pen, GDIPCONST REAL *dash,
     if(!pen || !dash)
         return InvalidParameter;
 
+    /* native behaviour */
+    if(count <= 0)
+        return OutOfMemory;
+
     for(i = 0; i < count; i++){
         sum += dash[i];
         if(dash[i] < 0.0)
-- 
1.4.4.4