Access 2007中的VBA6语法和OPOS打印机OCX驱动程序

时间:2013-06-18 14:47:58

标签: vba ms-access ms-access-2007 access-vba opos

我正在使用“OPOS”打印机和Access 2007,我正试图让一些访问VBA代码与驱动程序进行交互。

到目前为止,我得到了这个VBA6程序,我正试图咀嚼Access VBA:

Form1.frm:

VERSION 5.00
Object = "{CCB90150-B81E-11D2-AB74-0040054C3719}#1.0#0"; "OPOSPOSPrinter.ocx"
Begin VB.Form Step1 
   BorderStyle     =   1  'fixed
   Caption         =   "Step1: ""Hello OPOS"" is printed "
   ClientHeight    =   1590
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   3795
   LinkTopic       =   "MDIForm1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   1590
   ScaleWidth      =   3795
   StartUpPosition =   3  'Windows default value
   Begin VB.CommandButton cmdPrint 
      Caption         =   "Print Now"
      Height          =   450
      Left            =   1155
      TabIndex        =   0
      Top             =   525
      Width           =   1515
   End
   Begin OposPOSPrinter_CCOCtl.OPOSPOSPrinter OPOSPOSPrinter1 
      Left            =   3120
      OleObjectBlob   =   "Step1.frx":0000
      Top             =   960
   End
End
Attribute VB_Name = "Step1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' Step 1: "Hello OPOS" gets printed

Option Explicit

Private Sub cmdPrint_Click()

'send a string to the printer using method PrintNormal
'vbCrLf is VisualBasic standard newline
    OPOSPOSPrinter1.PrintNormal PTR_S_RECEIPT, "Hello OPOS" + vbCrLf

End Sub


Private Sub Form_Load()

    With OPOSPOSPrinter1
        'open device
        .Open "Unit1"

        'Claim exclusive access
        .ClaimDevice 1000

        'enable the device
        .DeviceEnabled = True
    End With

End Sub


Private Sub Form_Unload(Cancel As Integer)

    With OPOSPOSPrinter1
        'stop device
        .DeviceEnabled = False

        'Release exclusive access
        .ReleaseDevice

        'Done with the printer
        .Close
    End With

End Sub

另外

包含此其他文件:OposAll.bas

...可以在VBA项目文件中看到:

Type=Exe
Form=Step1.frm
Module=OPOS; ..\..\..\..\Include\OposAll.bas
Object={CCB90150-B81E-11D2-AB74-0040054C3719}#1.0#0; OPOSPOSPrinter.ocx
IconForm="Step1"
Startup="Step1"
HelpFile=""
Title="SamplePrint1"
Command32=""
Name="SamplePrint1"
HelpContextID="0"
CompatibleMode="0"
MajorVer=1
MinorVer=0
RevisionVer=0
AutoIncrementVer=0
ServerSupportFiles=0
VersionCompanyName="MECS"
CompilationType=0
OptimizationType=0
FavorPentiumPro(tm)=0
CodeViewDebugInfo=0
NoAliasing=0
BoundsCheck=0
OverflowCheck=0
FlPointCheck=0
FDIVCheck=0
UnroundedFP=0
StartMode=0
Unattended=0
ThreadPerObject=0
MaxNumberOfThreads=1

[MS Transaction Server]
AutoRefresh=1

我正在努力弄清楚如何将其转换为可用的Access VBA代码。

我的问题可能看起来很愚蠢,但请记住,我不知道VBA6和Access 2007 VBA。但使用DLL版本相当容易,我认为这也是可行的。

1)愚蠢的问题:这段代码代表什么? 是初始化一些对象吗? Access似乎不喜欢OPOSPOSPrinter1部分,是否有其他方法可以在Access中完成此操作?

   Begin OposPOSPrinter_CCOCtl.OPOSPOSPrinter OPOSPOSPrinter1
      Left            =   3120
      OleObjectBlob   =   "Step1.frx":0000
      Top             =   960
   End

2)这可能是最重要的问题:是否有更好的方式与Access 2007 VBA中的OCX驱动程序进行通信?

1 个答案:

答案 0 :(得分:1)

正如我在MS website中发现的那样,在Access 2007中,您需要以一种模糊的方式召唤ActiveX注册对话框:

Open a trusted database, or enable macros in the database.
Press CTRL+G to open the Immediate window.
Type the following code, and then press ENTER.

DoCmd.RunCommand acCmdRegisterActiveXControls

接下来,我注册了我的异国情调的OCX控件并将其列为OPOS POSPrinter Control 1.13.001 [Public, by CRM/RCS-Dayton]

之后,我从同样隐藏的Insert ActiveX按钮添加了新注册的控件:

IMHO MS employees use their OS backdoor to lol at desperate users who try to find things in the Ribbon®

将控件添加到表单后,我继续添加用于加载和卸载驱动程序的代码:

Private Sub Form_Load()

    With OPOSPOSPrinter1
        'open device
        .Open "Unit1"

        'Claim exclusive access
        .ClaimDevice 1000

        'enable the device
        .DeviceEnabled = True
    End With

End Sub


Private Sub Form_Unload(Cancel As Integer)

    With OPOSPOSPrinter1
        'stop device
        .DeviceEnabled = False

        'Release exclusive access
        .ReleaseDevice

        'Done with the printer
        .Close
    End With

End Sub

正如您所看到的,与原始VBA6表单相比,它完全没有变化。哦,这个语法:WITH <resource> (Body) END WITH只是VBA等同于C#using或Java中的全新try (<autoclosable>)。所以,当你说WITH OPOSPOSPrinter1时,你指的是你刚刚添加的activex控件。检查为其选择的访问名称。

导入opos.bas非常简单,可能是因为Ribbon®在此过程中根本没有参与。在代码编辑器中右键单击项目树,然后单击“导入...”。 .bas文件逐字导入为“模块”,如图所示。也许是因为它只是一堆变量定义。

print命令也可以不加改变地编译:

Private Sub Command1_Click()
    OPOSPOSPrinter1.PrintNormal PTR_S_RECEIPT, "Hello OPOS" + vbCrLf
End Sub

我还没有测试过这个怪物,但是我很轻松地保证在收集设备的反馈后我会更新。

最后,回答我自己的愚蠢问题。我的问题 1)中的语法是VBA6声明新控件的方式。访问似乎在其他地方进行。