directory - 选择后添加浏览安装目录 "${PRODUCT_NAME}"后的 NSIS 目录页面

Question

我有一个带有目录页面的简单 NSIS 脚本，用户可以在其中选择一个目录来安装应用程序。请参见下面的示例，如果该应用程序已安装，它会从注册表或 www 根目录或“程序文件\发布者\产品名称”中获取值。

问题是，当我在目录页面上单击浏览并选择特定目录(例如:c:\test)时，当我关闭浏览对话框时，定义的 PRODUCT_NAME 会自动添加到路径:c:\test\发票管理工作流程。如何避免自动添加产品名称？

!define PRODUCT_NAME "Invoice Management Workflow"

!insertmacro MUI_DEFINES
!insertmacro MUI_PAGE_WELCOME
Page directory DirPre
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH
!insertmacro MUI_UNPAGE_INSTFILES

Function DirPre
    ; set the INSTDIR to 
    ReadRegStr $0 HKLM "Software\${PRODUCT_PUBLISHER}\${PRODUCT_NAME}" "InstallDirectory"
    ${If} $0 != ""
        StrCpy $INSTDIR $0
        Abort
    ${Else}
        ; get the install dir from reg
        ReadRegStr $0 HKLM "SOFTWARE\Microsoft\InetStp" "PathWWWRoot"
        ${If} $0 != ""
            StrCpy $INSTDIR $0
        ${EndIf}
    ${EndIf}
FunctionEnd

Answer 1

这与 InstallDir 指令有关，引用手册:

Note that the part of this string following the last \ will be used if the user selects 'browse', and may be appended back on to the string at install time (to disable this, end the directory with a \ (which will require the entire parameter to be enclosed with quotes).

所以您可能需要 Installdir "$programfiles\${PRODUCT_PUBLISHER}\${PRODUCT_NAME}\"