CONST_DDWAITVBFLAGS

The CONST_DDWAITVBFLAGS enumeration is used by the flags parameter of the DirectDraw7.WaitForVerticalBlank method to specify how long to wait for the vertical blank.

Enum CONST_DDWAITVBFLAGS
    DDWAITVB_BLOCKBEGIN      = 1
    DDWAITVB_BLOCKBEGINEVENT = 2
    DDWAITVB_BLOCKEND        = 4
End Enum

DDWAITVB_BLOCKBEGIN

Returns when the vertical-blank interval begins.

DDWAITVB_BLOCKBEGINEVENT

Triggers an event when the vertical blank begins. This value is not currently supported.

DDWAITVB_BLOCKEND

Returns when the vertical-blank interval ends and the display begins.