Property: PatchType

(TBarcode1D_Patch)

For TBarcode1D_Patch barcode component, the property determines which Patch Code patterns to use.

Syntax:

type

{ Defined in the pPatch unit }

TPatchType = string;

property PatchType: TPatchType;

Description:

For Patch Code barcode symbology, there are six patch patterns ("1", "2", "3", "4", "6" and "T") that can be used. The property determines which Patch Code to use as follows:

• 1: Creates the Patch Type 1. It can be used for by the host for post-scan image control for the i800/i1800 (with image addressing) Series Scanners (they are not used for image addressing).
• 2: Creates the Patch Type 2. It is used for assigning image level 2 to the current document.
• 3: Creates the Patch Type 3. It is used for assigning image level 3 to the current document.
• 4: Create the Patch Type 4 / Toggle Patch. The Patch Type 4 is used by the host for post-scan image control for the i800/i1800 (with image addressing) Series Scanners (they are not used for image addressing). The Toggle Patch is used to switch back and forth from bi-tonal and color/grayscale scanning for the i280, 3590C, i600, i800 and i1800 (without image addressing) Series Scanners. This provides Color on the Fly during capture, with no need for post-scan processing by the host application.
• 6: Creates the Patch Type 6. It can be used for by the host for post-scan image control for the i800/i1800 (with image addressing) Series Scanners (they are not used for image addressing).
• T: Creates the Patch T / Transfer Patch. It can be used to assigns a predefined image level to the next document. The predefined image level is based upon the transfer patch definition which is defined for each application. For example, if the transfer patch definition is image level 2, then use of a transfer patch assigns image level 2 to the next document.

Note: Only one of characters 1, 2, 3, 4, 5, and T is allowed, an OnInvalidChar event will occur if you set the property to other character, and an OnInvalidLength event will occur if you set the property to 2 or more characters, or set it to empty.

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