[DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
public static extern IntPtr FindFirstFileEx(
string lpFileName,
FINDEX_INFO_LEVELS fInfoLevelId,
out WIN32_FIND_DATA lpFindFileData,
FINDEX_SEARCH_OPS fSearchOp,
IntPtr lpSearchFilter,
int dwAdditionalFlags);
<DllImport("kernel32.dll", CharSet:=CharSet.Auto)> _
Private Function FindFirstFileEx(ByVal lpFileName As String, ByVal fInfoLevelId As FINDEX_INFO_LEVELS, ByRef lpFindFileData As WIN32_FIND_DATA, ByVal fSearchOp As FINDEX_SEARCH_OPS, lpSearchFilter As Int32, dwAdditionalFlags As Integer) As Int32
End Function
<DllImport("kernel32.dll", CharSet:=CharSet.Unicode)> _
Public Shared Function FindFirstFileExW(ByVal lpFileName As String, ByVal fInfoLevelId As FINDEX_INFO_LEVELS, ByRef lpFindFileData As WIN32_FIND_DATAW, ByVal fSearchOp As FINDEX_SEARCH_OPS, lpSearchFilter As IntPtr, dwAdditionalFlags As Integer) As IntPtr
End Function
Those 'int32's are IntPtr - and using an Int32 instead will fail on a 64-bit platform.
Jens
// dwAdditionalFlags:
public const int FIND_FIRST_EX_CASE_SENSITIVE= 1;
public const int FIND_FIRST_EX_LARGE_FETCH = 2;
None.
Please add some!
WIN32_FIND_DATA findData;
FINDEX_INFO_LEVELS findInfoLevel = FINDEX_INFO_LEVELS.FindExInfoStandard;
int additionalFlags = 0;
if (Environment.OSVersion.Version.Major >= 6)
{
findInfoLevel = FINDEX_INFO_LEVELS.FindExInfoBasic;
additionalFlags = FIND_FIRST_EX_LARGE_FETCH;
}
IntPtr hFile = FindFirstFileEx(
pattern,
findInfoLevel,
out findData,
FINDEX_SEARCH_OPS.FindExSearchNameMatch,
IntPtr.Zero,
additionalFlags);
int error = Marshal.GetLastWin32Error();
if (hFile.ToInt32() != -1)
{
do
{
if ((findData.dwFileAttributes & FileAttributes.Directory) != FileAttributes.Directory)
{
Console.WriteLine("Found file {0}", findData.cFileName);
}
}
while (FindNextFile(hFile, out findData));
FindClose(hFile);
}
The FileInfo() class provides managed access to this information. As with all .NET file handling (as of framework 4) it is constrained in terms of the length of filename allowed.