AlphaBlendFlags

Name	Value	Description
BLEND_ZERO	1
BLEND_ONE	2
BLEND_SRCCOLOR	3
BLEND_INVSRCCOLOR	4
BLEND_SRCALPHA	5
BLEND_INVSRCALPHA	6
BLEND_DESTALPHA	7
BLEND_INVDESTALPHA	8
BLEND_DESTCOLOR	9
BLEND_INVDESTCOLOR	10
BLEND_SRCALPHASAT	11
BLEND_BOTHINVSRCALPHA	12