Datamax-oneil Class Series II Programmer’s Manual Manual do Utilizador descarregar pdf (Página 187)

Appendix B – Sample Programs

Class Series 2 Programmer’s Manual 173

cmboFonts.AddItem Printer.Fonts(I) ‘ Put each font into list

box.

Next I

Exit For

End If

End Sub

‘Exit the program and shut down the serial port

‘by clicking Exit button with the mouse

Private Sub cmdExit_Click()

End

End Sub

When the program is run, the combo box should be populated with the available fonts as shown

below.

VB Application to Send Raw Data via Printer Driver

This is a sample Visual Basic program that checks for any printer driver attached to

“LPT1”. If one is installed then a DPL file can be printed via the print driver. **Note that

this does not have to be a Datamax-O’Neil DPL print driver. DPL is created by the

application and sent to LPT1.

To begin, a global variable called SelPrinter must be defined as a string. Then use the

following code to create a .frm file.

VERSION 5.00

Object = “{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0”; “comdlg32.ocx”

Begin VB.Form Form1

Caption = “Form1”

ClientHeight = 1290

ClientLeft = 165

ClientTop = 735

ClientWidth = 3750

LinkTopic = “Form1”

MaxButton = 0 ‘False

MinButton = 0 ‘False

ScaleHeight = 1290

ScaleWidth = 3750

StartUpPosition = 3 ‘Windows Default

Begin MSComDlg.CommonDialog CommonDialog1

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