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BarCode Wiz ActiveX Component ActiveX Component Programming Reference

 

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Barcode Wiz Start

Programming Reference
BackColor
Returns or sets the background color of BarCodeWiz.
The BackColor property is ignored if the BackStyle property setting is 0 (Transparent).
For maximum readabilty by barcode scanners, BackColor should be in high contrast with ForeColor .

Syntax

BarCodeWiz1.BackColor [ = color]

The settings for color are
Setting Description
Normal RGB colors Colors specified by using the Color palette or by using the RGB or QBColor functions in code.
System Default colors Colors specified by system color constants listed in the Visual Basic (VB) object library in the Object Browser.
BackStyle
Returns or sets the background style of BarCodeWiz.
The BackColor property is ignored if the BackStyle property setting is 0 (Transparent).

Syntax

BarCodeWiz1.BackStyle [ = number]

The settings for number are
Constant Setting Description
Transparent 0 Background color and any graphics are visible behind the control.
Opaque 1 The control's BackColor property setting fills the control and obscures any color or graphics behind it.
Barcode
Returns or sets the value of Barcode. This value cannot be empty.

Syntax

BarCodeWiz1.Barcode [ = string]

Keep in mind that not all symbologies (types of barcodes) support all ASCII values. For example, Code 128 C supports numbers only.
See Symbology for more details.
BarcodeHeight
Returns or sets the height of the barcode (bars only - not the full component). This value cannot be zero. BarcodeHeight is measured in HiMetric units (0.01 millimeter) for highest accuracy.
1 inch = 2540 * 0.01 millimeter

Syntax

BarCodeWiz1.BarcodeHeight [ = number]
BarcodeTextPosition
Returns or sets the position of the barcode text (human readeable) in relation to the barcode.

Syntax

BarCodeWiz1.BarcodeTextPosition [ = number]

The settings for number are
Constant Setting Description
None 0 Text is not displayed.
Top_Left 1 Text is positioned above the barcode, left-aligned.
Top_Right 2 Text is positioned above the barcode, right-aligned.
Top_Center 3 Text is positioned above the barcode, centered.
Bottom_Left 4 Text is positioned below the barcode, left-aligned.
Bottom_Right 5 Text is positioned below the barcode, right-aligned.
Bottom_Center 6 Text is positioned below the barcode, centered.
BearerBars
Returns or sets the value indicating whether bearer bars are displayed. Bearer bars are two horizontal lines on top and bottom of a barcode, which may be used to increase scanning accuracy of certain symbologies. Most commonly, they are used with Interleaved 2 of 5.

Syntax

BarCodeWiz1.BearerBars [ = boolean]

The settings for boolean are
Setting Description
True Bearer bars are displayed.
False Bearer bars are not displayed.
Border
Returns or sets the border surrounding BarCodeWiz.

Syntax

BarCodeWiz1.Border [ = number]

The settings for number are
Constant Setting Description
No_Border 0 Border is not displayed.
Thin_Solid 1 Thin, rectangular border.
Thin_Dash 2 Thin, rectangular border with dashed lines.
Thin_Dot 3 Thin, rectangular border with dotted lines.
Thin_DashDot 4 Thin, rectangular border with dash-dotted lines.
Thin_Rd_Solid 5 Thin border with rounded edges.
BottomText
Returns or sets the value of BottomText.

Syntax

BarCodeWiz1.BottomText [ = string]

In order to hide the BottomText line, set string to an empty value.
BottomTextAlign
Returns or sets the horizontal alignment of BottomText. This property has no effect when BottomText is empty.

Syntax

BarCodeWiz1.BottomTextAlign [ = number]

The settings for number are
Constant Setting Description
Left 0 BottomText is aligned with the left side of the barcode.
Right 1 BottomText is aligned with the right side of the barcode.
Center 2 BottomText is in the center, below the barcode.
ForeColor
Returns or sets the foreground color of BarCodeWiz. This property affects the color of the barcode, text, bearer bars and the border.
For maximum readabilty by barcode scanners, BackColor should be in high contrast with ForeColor.

Syntax

BarCodeWiz1.ForeColor [ = color]

The settings for color are
Setting Description
Normal RGB colors Colors specified by using the Color palette or by using the RGB or QBColor functions in code.
System Default colors Colors specified by system color constants listed in the Visual Basic (VB) object library in the Object Browser.
NarrowBarWidth
Returns or sets the width of the narrowest bar in the barcode. This value cannot be zero. NarrowBarWidth is measured in HiMetric units (0.01 millimeter) for highest accuracy.
1 inch = 2540 * 0.01 millimeter

Syntax

BarCodeWiz1.NarrowBarWidth [ = number]

In order to preserve excellent scaling ability, many measurements in BarCodeWiz depend on the NarrowBarWidth value. For example QuietZone property defines its Medium_Zone setting as 15 times the NarrowBarWidth. Because of this, keep in mind that by changing NarrowBarWidth you may also change the overall dimensions of the component.
OptionalCheckChar
An optional checksum character may be calculated and added in order to increase scanning accuracy of a barcode. This property affects Code 39, Code 39 Extended, Interleaved 2 of 5, and Standard 2 of 5.

Note that many symbologies (such ase UPC-A) require an already-calculated checksum character. Do not use OptionalCheckChar property for that purpose -- it will be ignored. BarCodeWiz will verify the supplied checksum character, and will notify you if incorrect.

Syntax

BarCodeWiz1.OptionalCheckChar [ = number]

The settings for number are
Constant Setting Description
No_Check_Char 0 Optional checksum character is not used.
Barcode_Only 1 Optional checksum character is encoded into the barcode, but not shown in text.
Barcode_And_Text 2 Optional checksum character is encoded into the barcode as well as shown in text.
Orientation
Returns or sets the orientation of the component in degrees.
Multiples of 90 may be used (ie. 360 is equivalent to 0 degrees)

Syntax

BarCodeWiz1.Orientation [ = number]

The settings for number are
Constant Setting Description
Degrees_0 0 Default orientation. Component is not rotated.
Degrees_90 90 Component is shown at 90 degrees angle (counter-clockwise).
Degrees_180 180 Component is shown upside-down, at 180 degrees angle.
Degrees_270 270 Component is shown at 270 degrees angle (counter-clockwise).
Picture
Returns the image of the component (this is a read-only property, not available at design-time). You may use this property to output a barcode to printer.

Syntax

BarCodeWiz1.Picture

Visual Basic Examples

Example 1. Send a barcode image to your printer. It will print the barcode in the top left position on the page (0,0). Printer.PaintPicture BarCodeWiz1.Picture, 0, 0
Printer.EndDoc

Example 2. Set the Picture property of a PictureBox (named Picture1) to that of BarCodeWiz1.

Picture1.Picture = BarCodeWiz1.Picture
QuietZone
Returns or sets the horizontal clear space around the barcode. Quiet zone may be required for higher barcode readability.

Syntax

BarCodeWiz1.QuietZone [ = number]

The settings for number are
Constant Setting Description
No_Zone 0 No quiet zone.
Smallest_Zone 1 Horizontal quiet zone is equal to 5 times NarrowBarWidth .
Small_Zone 2 Horizontal quiet zone is equal to 10 times NarrowBarWidth .
Medium_Zone 3 Horizontal quiet zone is equal to 15 times NarrowBarWidth .
Large_Zone 4 Horizontal quiet zone is equal to 20 times NarrowBarWidth .
Largest_Zone 5 Horizontal quiet zone is equal to 25 times NarrowBarWidth .
StretchBarcodeText
Returns or sets the value indicating whether the human readable barcode text is stretched to match the width of the barcode itself.

Syntax

BarCodeWiz1.StretchBarcodeText [ = boolean]

The settings for boolean are
Setting Description
True Text is stretched to match the width of the barcode. Horizontal alignment in BarcodeTextPosition is ignored.
False Text is drawn without changes.
Symbology
Returns or sets the type of barcode to be used.

Syntax

BarCodeWiz1.Symbology [ = number]

The settings for number are
Constant Setting Description
Code_39 0 Most commonly used non-retail symbology.
Note that the leading and trailing asterisks (*) are added automatically, if not supplied.
Characters allowed:
0-9; A-Z; -.$*/+%, and space
Code_39_Extended 1 Allows all ASCII 128 characters to be encoded by using a double-character format. Most scanners will need to be switched to the extended mode in order to recognize this.
Code_128_A 2 Allows all ASCII values between 0 and 96. This includes special characters, such as tab or escape.
Code_128_B 3 Allows all ASCII values between 32 and 127.
(Unlike Code 128 A, it allows the use of lower-case letters)
Code_128_C 4 High density, numeric only
Code_128_Auto 5 Automatically chooses the best Code 128 subset.
Interleaved_2of5 6 Hight density, numeric only symbology.
Must have an even number of digits.
Standard_2of5 7 Numeric-only, low density. Commonly used in libraries, blood banks, and parcels.
Code_93 8 Superset of Code 39.
If required, it switches to Code 93 Extended automatically.
Code_11 9 Uses numbers 0-9 and the dash symbol "-"
Codabar 10 Numeric-only symbology. Each barcode, however, must Start and end with the letters A,B,C or D.
UPC_A 11 Used in retail environments in North America
UPC_E 12 Shorter version of UPC-A.
Not all UPC-A numbers can be converted to UPC-E
EAN_13 13 Used in retail environments outside of North America.
EAN_8 14 Similar to EAN 13, but EAN 8 numbers are not derived from EAN 13 (as is the case with UPC).
TopText
Returns or sets the value of TopText.

Syntax

BarCodeWiz1.TopText [ = string]

In order to hide the TopText line, set string to an empty value.
TopTextAlign
Returns or sets the horizontal alignment of TopText. This property has no effect when TopText is empty.

Syntax

BarCodeWiz1.TopTextAlign [ = number]

The settings for number are
Constant Setting Description
Left 0 TopText is aligned with the left side of the barcode.
Right 1 TopText is aligned with the right side of the barcode.
Center 2 TopText is in the center, above the barcode.
WideToNarrowRatio
Returns or sets the ratio of the wide to narrow bar in a barcode. This property affects Code 39, Code 39 Extended, Interleaved 2of5, Standard 2of5, and Codabar only (these symbologies only use two bar widths).

Syntax

BarCodeWiz1.WideToNarrowRatio [ = number]

The settings for number are
Constant Setting Description
Optimal_Ratio 0 No quiet zone.
Smallest_Ratio 1 Width of the wide bar is equal to 2 times NarrowBarWidth .
Small_Ratio 2 Width of the wide bar is equal to 2.25 times NarrowBarWidth .
Medium_Ratio 3 Width of the wide bar is equal to 2.5 times NarrowBarWidth .
Large_Ratio 4 Width of the wide bar is equal to 2.75 times NarrowBarWidth .
Largest_Ratio 5 Width of the wide bar is equal to 3 times NarrowBarWidth .
CopyToClipboard
This method stores the current image into the clipboard as an enhanced metafile.
You may paste this image into a number of programs simply by pressing Ctrl+V or by selecting Edit->Paste from the menu.

Syntax

BarCodeWiz1.CopyToClipboard
SaveAs
This method saves the current image to disk as an enhanced- or a Windows metafile.

Syntax

BarCodeWiz1.SaveAs (ByVal pathname As String)

pathname is a string expression specifying the path and filename of the file. The type of file is determined by its three-letter extension. Possible file extensions are wmf and emf (the latter is recommended).

The following example shows how to create (save to files) 100 barcode images (values from 1000 to 1099) in Visual Basic:

Dim x As Integer
For x = 0 To 99
BarCodeWiz1.Barcode = 1000 + x
BarCodeWiz1.SaveAs "c:\images\" & 1000 + x & ".emf"
Next

Barcode Wiz Start. Screen Shots

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See Also: Barcodes - Fonts, ActiveX, labels and DLL's Index. Barcode MICR CMC-7 || Codabar Barcode Font || Code 11 Barcode Font || Code 128 Barcode Font || Code 25 Barcode Font || Code 39 Barcode Font || Code 93 Barcode Font || Code39 Full ASCII Barcode Font || Data Matrix Encoder || Interleaved 25 Barcode Font || MICR E13B Font || MSI Barcode Font || OCR Font || PDF417 Encoder || Telepen Barcode Font || UPC EAN Barcode Font



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