include: Add extended treeview style (TVS_EX_) definitions.

include/commctrl.h

@@ -2463,6 +2463,16 @@ static const WCHAR WC_TREEVIEWW[] = { 'S','y','s',
 #define TVS_SHAREDIMAGELISTS  0x0000
 #define TVS_PRIVATEIMAGELISTS 0x0400
 
+#define TVS_EX_MULTISELECT         0x0002
+#define TVS_EX_DOUBLEBUFFER        0x0004
+#define TVS_EX_NOINDENTSTATE       0x0008
+#define TVS_EX_RICHTOOLTIP         0x0010
+#define TVS_EX_AUTOHSCROLL         0x0020
+#define TVS_EX_FADEINOUTEXPANDOS   0x0040
+#define TVS_EX_PARTIALCHECKBOXES   0x0080
+#define TVS_EX_EXCLUSIONCHECKBOXES 0x0100
+#define TVS_EX_DIMMEDCHECKBOXES    0x0200
+#define TVS_EX_DRAWIMAGEASYNC      0x0400
 
 #define TVE_COLLAPSE          0x0001
 #define TVE_EXPAND            0x0002