带有session.message功能的WiX-vbscript自定义操作

Question

我想向用户显示一个对话框，上面写着"这将在本次安装中删除"，如果按下"是"或"确定"，则安装可以继续；否则，我想中止它。

因此，我定义了一个自定义操作（运行vbscript），如下所示：

<CustomAction Id="ShowUninstallInformationDlg" Impersonate="yes" Return="check" Execute="immediate" BinaryKey="ShowUninstallInformationDlg.vb" VBScriptCall=""/>
<Binary Id="ShowUninstallInformationDlg.vb" SourceFile="c:myscriptsinstallerShowUninstallInformationDlg.vbs"/>
<InstallExecuteSequence>
  <Custom Action="ShowUninstallInformationDlg" After="FindRelatedProducts">NOT Installed AND NOT PATCH AND NOT MYPRODUCT_ANYVERSION=""</Custom>
</InstallExecuteSequence>

VBSCRIPT（ShowUninstallInformationDlg.vbs）:

'ShowUninstallInformationDlg
Option Explicit
Dim text
Dim productName
Dim rec
productName = Session.Property("ProductName")
text = "The following installations are going to be removed with the installation of " & productName & ":"
If Session.Property("MYPRODUCT_ANYVERSION") <> "" Then
  text = text & "n    * MyOtherProduct (any version)"
End If
Set rec = Session.Installer.CreateRecord(1)
rec.StringData(0) = text
Session.Message &H0B000034, rec

我用作"Session.Message"参数的类型"&H0B000034"来自MSDN中的一个示例，请参阅http://msdn.microsoft.com/en-us/library/windows/desktop/aa371672（v=vs.85）.aspx.

脚本总是在执行中，我在MSI日志中得到以下错误：

错误1720。此Windows安装程序包有问题。无法运行完成此安装所需的脚本。请联系您的支持人员或软件包供应商。自定义操作ShowUninstallInformationDlg脚本错误-2147467259，Msi API错误：消息，种类，记录行19，列1，

我在谷歌上搜索了大量使用Session.Message的例子，但没有成功的结果。。。有人能帮忙吗？谢谢

Answer 1

我使用了以下内容，它正确地工作了

Session.Message &H04000000, rec 

请看我为它写的vbs

  Sub LogMessage(msg)
      Dim rec
      Set rec = Session.Installer.CreateRecord(1)
      rec.StringData(0) = "Custom Message : " & msg
      Session.Message &H04000000,rec
  End Sub

Answer 2

当在"添加/删除程序"中按下"删除"按钮时，不应该显示任何UI。或者，您可以禁用"删除"按钮并保持"更改"按钮处于启用状态。调用维护UI体验，该体验通常具有"修复|更改|删除"对话框。如果他们选择"删除"并按"下一步"，您可以显示一个丰富的UI来询问您的问题。

Answer 3

这个脚本通过使用MsgBox而不是"Session.Message"解决了我的问题：

'ShowUninstallInformationDlg
Option Explicit
const vbOKOnly           = 0    'OK button only
const vbOKCancel         = 1    'OK and Cancel buttons
const vbAbortRetryIgnore = 2    'Abort, Retry, and Ignore buttons
const vbYesNoCancel      = 3    'Yes, No, and Cancel buttons
const vbYesNo            = 4    'Yes and No buttons
const vbRetryCancel      = 5    'Retry and Cancel buttons
const vbCritical         = 16   'Critical Message icon
const vbQuestion         = 32   'Warning Query icon
const vbExclamation      = 48   'Warning Message icon
const vbInformation      = 64   'Information Message icon
const vbDefaultButton1   = 0    'First button is default
const vbDefaultButton2   = 256  'Second button is default
const vbDefaultButton3   = 512  'Third button is default
const vbDefaultButton4   = 768  'Fourth button is default
const vbApplicationModal = 0    'Application modal (the current application will not work until the user responds to the message box)
const vbSystemModal      = 4096 'System modal (all applications wont work until the user responds to the message box)
const vbOK     = 1 'OK was clicked
const vbCancel = 2 'Cancel was clicked
const vbAbort  = 3 'Abort was clicked
const vbRetry  = 4 'Retry was clicked
const vbIgnore = 5 'Ignore was clicked
const vbYes    = 6 'Yes was clicked
const vbNo     = 7 'No was clicked
const msiDoActionStatusNoAction      = 0 '&H0
const msiDoActionStatusSuccess       = 1 '&H1
const msiDoActionStatusUserExit      = 2 '&H2
const msiDoActionStatusFailure       = 3 '&H3
const msiDoActionStatusSuspend       = 4 '&H4
const msiDoActionStatusFinished      = 5 '&H5
const msiDoActionStatusWrongState    = 6 '&H6
const msiDoActionStatusBadActionData = 7 '&H7
public function ShowMessage()
  Dim productName
  Dim text
  Dim buttons
  Dim result
  productName = Session.Property("ProductName")
  text = "The following installations are going to be removed from this computer by continuing the installation of " & productName & ":"
  If Session.Property("MYPRODUCT_ANYVERSION") <> "" Then
    text = text & chr(13) & chr(13) & "    * MyOtherProduct (any version)"
  End If 
  buttons = vbExclamation + vbOKCancel
  result = MsgBox(text, buttons, "Dependant Product Installations")
  If result = vbOK Then
    ShowMessage = msiDoActionStatusSuccess
  Else
    ShowMessage = msiDoActionStatusUserExit
  End If
end function

Answer 4

请参阅本文以获取类似的示例和解决方案。