查找最大Drive，NSIS安装程序

Question

我对NSIS安装程序脚本完全陌生，我想将安装目录设置为计算机上最大的磁盘。任何人都可以指导我如何去做。

Answer 1

!include LogicLib.nsh 
System::Call 'kernel32::GetLogicalDrives()i.r0' 
StrCpy $1 $windir 3 ; Fallback if things go wrong 
StrCpy $2 0 
StrCpy $4 65 ; 'A' 
loop: 
    IntOp $3 $0 & 1 
    ${If} $3 <> 0 
     IntFmt $3 "%c:\" $4 
     System::Call 'kernel32::GetDiskFreeSpaceEx(tr3,*l.r5,*l,*l)i' 
     ${If} $5 L> $2 
      StrCpy $2 $5 
      StrCpy $1 $3 
     ${EndIf} 
    ${EndIf} 
    IntOp $4 $4 + 1 
    IntOp $0 $0 >> 1 
    StrCmp $0 0 "" loop 
StrCpy $InstDir "$1" ;You should probably append something to the path here, you cannot install to the root of a drive by default 

放入.onInit或目录页面预回调...