IMcFrameCreateRegionAccess Method

Function CreateRegionAccess ( 
	<OptionalAttribute> vType As Object,
	Optional lChannel As Integer = -1,
	Optional lLeft As Integer = -1,
	Optional lTop As Integer = -1,
	Optional lRight As Integer = -1,
	Optional lBottom As Integer = -1,
	Optional AccessMode As mcRegionAccessMode = mcRegionAccessMode.mcramReadWrite
) As McRegionAccess

Parameters

vType (Optional)

Type: SystemObject

lChannel (Optional)

Type: SystemInt32

lLeft (Optional)

Type: SystemInt32

lTop (Optional)

Type: SystemInt32

lRight (Optional)

Type: SystemInt32

lBottom (Optional)

Type: SystemInt32

AccessMode (Optional)

Type: MediaCy.IQL.EnginemcRegionAccessMode
If given, specifies whether pixel access will be read-only, write-only or read-write (mcramReadWrite is the default). For mcramReadOnly AccessMode, any attempt to write to pixels will result in an error. Similarly, for mcramWriteOnly AccessMode, any attempt to read pixels is an error. The main advantage of specifying the AccessMode is for mcramWriteOnly access to a non-native (i.e., cast) Type. In this case, the initial forward cast of pixels from the native image Type to the requested McRegionAccess.Type can be skipped, thereby potentially saving substantial time.

Return Value

Reference