vba 如何知道是否安装了Office的VBA组件？
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How to know if the VBA component of Office is installed?
提问by Jason
My Excel addin requires the Visual Basic for Applications option of Excel to be installed in order for it to work. I would like my install (which is written with InnoSetup) to be able to detect if VBA is installed and warn the user if it is not.
我的 Excel 插件需要安装 Excel 的 Visual Basic for Applications 选项才能工作。我希望我的安装（用 InnoSetup 编写）能够检测是否安装了 VBA，如果没有则警告用户。
How can I detect if the option is already installed?
如何检测该选件是否已安装？
采纳答案by Tony Toews
One possibility is to check for the presence of VBE6.DLL in C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6. Or poke about in the registry looking for references to that DLL or the string VBA.
一种可能性是检查 C:\Program Files\Common Files\Microsoft Shared\VBA\VBA6 中是否存在 VBE6.DLL。或者在注册表中查找对该 DLL 或字符串 VBA 的引用。
Note that this location/file name might be different for Office 2010 as there are some changes in the VBA editor.
请注意，此位置/文件名对于 Office 2010 可能有所不同，因为 VBA 编辑器中有一些更改。
回答by Anonymous Type
Why don't you try a function like this... found here
你为什么不试试这样的功能...... 在这里找到
Option Explicit
Private Declare Function FreeLibrary Lib "kernel32" (ByVal hLibModule As Long) As Long
Private Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Long
Private Sub cmdCheck_Click()
MsgBox "Exist ??? =" & CheckForComponent("user32.dll")
End Sub
Private Function CheckForComponent(ComPath As String) As Boolean
Dim Ret As Long
Ret = LoadLibrary(ComPath)
FreeLibrary Ret
If Ret = 0 Then
CheckForComponent = False
Else
CheckForComponent = True
End If
End Function
回答by Siarhei Helis
public static class VbePrerequisiteDetector {
private const string VbeInstallationPathKey = @"SOFTWARE\Microsoft\VBA";
private const string Vbe6InstallationPathValue = "Vbe6DllPath";
private const string Vbe7InstallationPathValue = "Vbe7DllPath";
/// <summary>
/// Return true if VBE6 installed. VBE6 is prerequisite for for Office2003 and Office2007
/// </summary>
/// <returns>Return true if VBE6 installed.</returns>
public static bool IsVbe6Installed() {
try {
RegistryKey vbaPathKey = Registry.LocalMachine.OpenSubKey(VbeInstallationPathKey);
if (vbaPathKey != null) {
if (vbaPathKey.GetValue(Vbe6InstallationPathValue) != null) {
string pathToVbe = (string)vbaPathKey.GetValue(Vbe6InstallationPathValue);
if (File.Exists(pathToVbe)) {
return true;
}
}
}
}
catch (Exception) {
//Ignore all exceptions
}
return false;
}
/// <summary>
/// Return true if VBE7 installed. VBE7 is prerequisite for for Office2010
/// </summary>
/// <returns>Return true if VBE7 installed.</returns>
public static bool IsVbe7Installed() {
try {
RegistryKey vbaPathKey = Registry.LocalMachine.OpenSubKey(VbeInstallationPathKey);
if (vbaPathKey != null) {
if (vbaPathKey.GetValue(Vbe7InstallationPathValue) != null) {
string pathToVbe = (string)vbaPathKey.GetValue(Vbe7InstallationPathValue);
if (File.Exists(pathToVbe)) {
return true;
}
}
}
}
catch (Exception) {
//Ignore all exceptions
}
return false;
}
}
回答by Bernd Ott
We are talking about Windows Installer components. The Installer has an API, where you can request if a feature/component is installed. ofcurse that api also return where the component is installed. if nessacary you can install missing components.
我们正在谈论 Windows Installer 组件。安装程序有一个 API，您可以在其中请求是否安装了功能/组件。该 api 也会返回安装组件的位置。如果 nessacary 您可以安装缺少的组件。
the only thing you need, is the component und product guid.
您唯一需要的是组件和产品指南。
回答by Armin Sadeghi
The best way to detect if VBA is installed is to use the MsiQueryFeatureState API and ask Windows Installer whether the feature is installed or not. Below is some sample code that does this in VB.NET, however you could code this in any language that allows you to call COM components (sorry, not familiar with InnoSetup).
检测是否安装了 VBA 的最佳方法是使用 MsiQueryFeatureState API 并询问 Windows Installer 是否安装了该功能。下面是一些在 VB.NET 中执行此操作的示例代码，但是您可以使用任何允许您调用 COM 组件的语言对其进行编码（抱歉，不熟悉 InnoSetup）。
Private Declare Function MsiQueryFeatureState Lib "Msi" Alias "MsiQueryFeatureStateA" (ByVal Product As String, ByVal Feature As String) As Long
Public Function FVbaAvailable() As Boolean
Dim objExcelApp As Object
Dim strProductCode As String
Dim nState As Long
Dim fAvailable As Boolean = False
Try
' Start an Excel instance and get the product code.
objExcelApp = CreateObject("Excel.Application")
strProductCode = DirectCast(objExcelApp.ProductCode, String)
' Get FeatureState for the VBAFiles Feature.
nState = MsiQueryFeatureState(strProductCode, "VBAFiles")
If (nState = 1) OrElse (nState = 3) OrElse (nState = 4) Then
' VBA is available.
fAvailable = True
End If
' Clean up.
objExcelApp.Quit()
Runtime.InteropServices.Marshal.FinalReleaseComObject(objExcelApp)
objExcelApp = Nothing
Catch ex As Exception
Trace.WriteLine(ex.Message)
End Try
Return fAvailable
End Function
