gdiplus: GdipDrawString should not clip the string if StringFormatFlagsNoClip is specified.

dlls/gdiplus/graphics.c

@@ -4907,7 +4907,7 @@ GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string
     GpPointF pt[3], rectcpy[4];
     POINT corners[4];
     REAL rel_width, rel_height, margin_x;
-    INT save_state;
+    INT save_state, format_flags = 0;
     REAL offsety = 0.0;
     struct draw_string_args args;
     RectF scaled_rect;
@@ -4932,6 +4932,8 @@ GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string
     if(format){
         TRACE("may be ignoring some format flags: attr %x\n", format->attr);
 
+        format_flags = format->attr;
+
         /* Should be no need to explicitly test for StringAlignmentNear as
          * that is default behavior if no alignment is passed. */
         if(format->vertalign != StringAlignmentNear){
@@ -4985,7 +4987,8 @@ GpStatus WINGDIPAPI GdipDrawString(GpGraphics *graphics, GDIPCONST WCHAR *string
     if (scaled_rect.Width >= 1 << 23 || scaled_rect.Width < 0.5) scaled_rect.Width = 1 << 23;
     if (scaled_rect.Height >= 1 << 23 || scaled_rect.Height < 0.5) scaled_rect.Height = 1 << 23;
 
-    if (scaled_rect.Width != 1 << 23 && scaled_rect.Height != 1 << 23)
+    if (!(format_flags & StringFormatFlagsNoClip) &&
+        scaled_rect.Width != 1 << 23 && scaled_rect.Height != 1 << 23)
     {
         /* FIXME: If only the width or only the height is 0, we should probably still clip */
         rgn = CreatePolygonRgn(corners, 4, ALTERNATE);