windows如何调用Linux的API,PowerShell中调用Win32API

调用Win32 API, 取得网络文件夹的剩余空间. 用户无需挂载磁盘即可取得结果

$a = Add-Type -memberDefinition @"

[DllImport("Kernel32.dll")]

public static extern bool GetDiskFreeSpaceEx(

string lpDirectoryName,

out long lpFreeBytesAvailable,

out long lpTotalNumberOfBytes,

out long lpTotalNumberOfFreeBytes

);

"@ -passthru -name MyGetDiskFreeSpaceEx

$fba = [int64] 0;

$tnb = [int64] 0;

$nfb = [int64] 0;

$a::GetDiskFreeSpaceEx(" Folders\files", [ref] $fba, [ref] $tnb, [ref] $nfb)

"FreeBytesAvailable: $($x)"

"TotalNumberOfBytes: $($y)"

"TotalNumberOfFreeBytes: $($z)"

------------OLD------------

$a = Add-Type -memberDefinition @"

[DllImport("Kernel32.dll")]

public static extern bool GetDiskFreeSpaceEx(

string lpDirectoryName,

IntPtr lpFreeBytesAvailable,

IntPtr lpTotalNumberOfBytes,

IntPtr lpTotalNumberOfFreeBytes

);

"@ -passthru -name MyGetDiskFreeSpaceEx

$fba = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);

$tnb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);

$nfb = [System.Runtime.InteropServices.Marshal]::AllocHGlobal(20);

$a::GetDiskFreeSpaceEx(" Folders\files", $fba, $tnb,  $nfb)

$x = [System.Runtime.InteropServices.Marshal]::ReadInt64($fba)

$y = [System.Runtime.InteropServices.Marshal]::ReadInt64($tnb)

$z = [System.Runtime.InteropServices.Marshal]::ReadInt64($nfb)

"FreeBytesAvailable: $($x)"

"TotalNumberOfBytes: $($y)"

"TotalNumberOfFreeBytes: $($z)"

[System.Runtime.InteropServices.Marshal]::FreeHGlobal($fba);

[System.Runtime.InteropServices.Marshal]::FreeHGlobal($tnb);

[System.Runtime.InteropServices.Marshal]::FreeHGlobal($nfb);