Warning: This property is deprecated. Deprecated components of Microsoft DirectX 9.0 for Managed Code are considered obsolete. While these components are still supported in this release of DirectX 9.0 for Managed Code, they may be removed in the future. When writing new applications, you should avoid using these deprecated components. When modifying existing applications, you are strongly encouraged to remove any dependency on these components.
Indicates that the alpha channel becomes more transparent as the alpha value increases. The depth of the alpha channel-data can be 1, 2, 4, or 8. Regardless of the depth of the alpha information, 0 is always the fully opaque value. This flag can be set only if Alpha has been set. Used for blit operations. Deprecated.
Definition
Visual Basic
Public ReadOnly Property DrawAlphaSurfacesNegative As Boolean