中的代码
answer you found
实际上返回文件系统的名称,然后它继续告诉您这可能不是最好的方式。如果可能,您应该使用文件系统标志。例如,微软的新文件系统
ReFS
支持一些NTFS功能,并添加了一些新的可靠性功能。
!include LogicLib.nsh
StrCpy $9 "c:\"
System::Call 'Kernel32::GetVolumeInformation(t "$9",t.r3,i ${NSIS_MAX_STRLEN},*i,*i,*i.r1,t.r2,i ${NSIS_MAX_STRLEN})i.r0'
${If} $0 <> 0
IntFmt $1 "%#.8x" $1
MessageBox MB_OK " FileSystemFlags=$1 $\n FileSystemName=$2 $\n VolumeName=$3"
${If} $2 == "NTFS"
MessageBox MB_OK "$9 is NTFS"
${Else}
MessageBox MB_OK "$9 is $2 and not NTFS but hopefully you don't care"
${EndIf}
${EndIf}
您的其他属性不会被此函数公开,如果您查看其
documentation on MSDN
!include LogicLib.nsh
StrCpy $9 "c:\"
System::Call 'Kernel32::GetDiskFreeSpaceEx(t "$9", *l.r1, *l.r2, *l.r3)i.r0' ; This function does not work on Windows 95
${If} $0 <> 0
MessageBox MB_OK " FreeBytesAvailable=$1 $\n TotalNumberOfBytes=$2 $\n TotalNumberOfFreeBytes=$3"
System::Call 'ShLwApi::StrFormatByteSizeW(l $1, w.r4, i ${NSIS_MAX_STRLEN})'
MessageBox MB_OK "Friendly FreeBytesAvailable: $4" ; For display in UI only!
!define /math MYSIZE 0x100000 * 666 ; 666 MiB
${If} $1 L>= ${MYSIZE}
MessageBox MB_OK "Disk quota on $9 allows you to write at least ${MYSIZE} bytes on this volume"
${Else}
MessageBox MB_OK|MB_ICONSTOP "Not enough space on volume, ${MYSIZE} bytes required!"
Quit
${EndIf}
${EndIf}
NSIS已经提供了一个目录页来检查磁盘空间,如果可能的话可以使用它。注意:您不能比较不同比例的数字(TB与GB等),必须比较64位字节计数。
按分配单位,我假设你说的是
cluster size
?
!include LogicLib.nsh
StrCpy $9 "c:\"
System::Call 'Kernel32::GetDiskFreeSpace(t "$9", *i.r1, *i.r2, *i, *i)i.r0'
${If} $0 <> 0
IntOp $1 $1 * $2
System::Call 'ShLwApi::StrFormatByteSizeW(l $1, w.r3, i ${NSIS_MAX_STRLEN})'
MessageBox MB_OK "Cluster size: $3 ($1 bytes)"
${If} 4096 <> $1
; ...
${EndIf}
${EndIf}
(报告的群集大小可能是逻辑大小,而不是物理大小)