Class that allows to manipulate image capability supported by device.
Allows an application to request the delivery of thumbnail representations for the set of images that are to be
delivered. Setting CAP_THUMBNAILSENABLED to TRUE turns on thumbnail mode.
Images transferred thereafter will be sent at thumbnail size (exact thumbnail size is determined by the Data Source).
Setting this capability to FALSE turns thumbnail mode off and returns full size images.
A successful set of this capability to TRUE will cause the Source to deliver image thumbnails during normal data
transfer operations. This mode remains in effect until this capability is set back to FALSE.
Application can use this capability to inquire, set, or restrict the values for BRIGHTNESS used in the Source.
Inheritance Hierarchy
TwainScanning.CapabilityCapSetBase
TwainScanning.Capability.CapabilitySetsImageAcquire
Namespace: TwainScanning.Capability.CapabilitySets
Assembly: TwainScanning (in TwainScanning.dll) Version: 1.3.4.0 (1.3.4.0)
Syntax
The ImageAcquire type exposes the following members.
Methods
| Name | Description | |
|---|---|---|
 | Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
 | Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetCapabilities | (Inherited from CapSetBase.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MakeCapT | (Inherited from CapSetBase.) |
| MakeCapArrT | (Inherited from CapSetBase.) |
| MakeCapReadOnlyT | (Inherited from CapSetBase.) |
| MakeCapReadOnlyArrayT | (Inherited from CapSetBase.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a String that represents the current Object. (Inherited from Object.) |
Properties
| Name | Description | |
|---|---|---|
 | AutoBright |
The source Auto-brightness function (if any).
ICAP_AUTOBRIGHT
|
| Brightness |
The brightness values available within the Source.
ICAP_BRIGHTNESS
|
| Contrast |
The contrast values available within the Source.
ICAP_CONTRAST
|
| Highlight |
Specifies which value in an image should be interpreted as the lightest “highlight.” All values
“lighter” than this value will be clipped to this value.
ICAP_HIGHLIGHT
|
| ImageDataSet |
Gets or sets the image indices that will be delivered during the standard image transfer.
ICAP_IMAGEDATASET
|
| Mirror |
How the Source can/should mirror the scanned image data prior to transfer.
ICAP_MIRROR
|
| Orientation |
Defines which edge of the “paper” the image’s “top” is aligned with.
ICAP_ORIENTATION
|
| Rotation |
How the Source can/should rotate the scanned image data prior to transfer.
ICAP_ROTATION
|
| Shadow |
Darkest shadow, values darker than this value will be clipped to this value.
|
| ThumbnailsEnabled |
Allows an application to request the delivery of thumbnail representations for the set of images
that are to be delivered.
CAP_THUMBNAILSENABLED
|
| XScaling |
All the X-axis scaling values available. A value of ‘1.0’ is equivalent to 100% scaling. Do not use
values less than or equal to zero.
ICAP_XSCALING
|
| YScaling |
All the Y-axis scaling values available. A value of ‘1.0’ is equivalent to 100% scaling. Do not use
values less than or equal to zero.
ICAP_YSCALING
|
See Also