gdiplus: Implement GdipCreateFont.
diff --git a/include/gdiplusenums.h b/include/gdiplusenums.h
index a27ed5e..8e1148d 100644
--- a/include/gdiplusenums.h
+++ b/include/gdiplusenums.h
@@ -250,6 +250,16 @@
     StringTrimmingEllipsisPath         = 5
 };
 
+enum FontStyle
+{
+    FontStyleRegular    = 0,
+    FontStyleBold       = 1,
+    FontStyleItalic     = 2,
+    FontStyleBoldItalic = 3,
+    FontStyleUnderline  = 4,
+    FontStyleStrikeout  = 8
+};
+
 enum HotkeyPrefix
 {
     HotkeyPrefixNone   = 0,
@@ -330,6 +340,7 @@
 typedef enum TextRenderingHint TextRenderingHint;
 typedef enum StringAlignment StringAlignment;
 typedef enum StringTrimming StringTrimming;
+typedef enum FontStyle FontStyle;
 typedef enum StringFormatFlags StringFormatFlags;
 typedef enum HotkeyPrefix HotkeyPrefix;
 typedef enum PenAlignment GpPenAlignment;