作者：伪祢添睬_362 | 来源：互联网 | 2023-07-08 15:17
我正在编写一个程序((部分工作)执行其他程序.我希望能够使用Process.Start运行尽可能多的类型的程序(用不同的语言编写).所以,我想我应该：>打开文件&
我正在编写一个程序((部分工作)执行其他程序.我希望能够使用Process.Start运行尽可能多的类型的程序(用不同的语言编写).所以,我想我应该：
>打开文件
>阅读第一行
>检查它是否以#开头！
>如果是这样,请使用#后面的内容！作为要执行的程序,并将文件名作为参数传递
>如果没有#！找到,检查文件扩展名对已知程序的字典(例如.py – > python)并执行该程序
>否则,只需尝试执行该文件并捕获任何错误
但是,我认为实际检查文件是否可执行是否更容易/更有效,如果是,请跳转到6.有没有办法做到这一点？
解决方法:
执行此操作的唯一方法是使用P / Invoke调用Win32 API.您需要使用SHGetFileInfo方法,然后解压返回值：
[Flags]
internal enum SHGFI : uint
{
ADDOVERLAYS = 0x20,
ATTR_SPECIFIED = 0x20000,
ATTRIBUTES = 0x800,
DISPLAYNAME = 0x200,
EXETYPE = 0x2000,
ICON = 0x100,
ICOnLOCATION= 0x1000,
LARGEICON = 0,
LINKOVERLAY = 0x8000,
OPENICON = 2,
OVERLAYINDEX = 0x40,
PIDL = 8,
SELECTED = 0x10000,
SHELLICOnSIZE= 4,
SMALLICON = 1,
SYSICOnINDEX= 0x4000,
TYPENAME = 0x400,
USEFILEATTRIBUTES = 0x10
}
///
/// This structure contains information about a file object.
///
///
/// This structure is used with the SHGetFileInfo function.
///
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
internal struct SHFILEINFO
{
///
/// Handle to the icon that represents the file.
///
internal IntPtr hIcon;
///
/// Index of the icon image within the system image list.
///
internal int iIcon;
///
/// Specifies the attributes of the file object.
///
internal SFGAO dwAttributes;
///
/// Null-terminated string that contains the name of the file as it
/// appears in the Windows shell, or the path and name of the file that
/// contains the icon representing the file.
///
[MarshalAs(UnmanagedType.ByValTStr, SizeCOnst= Constants.MAX_PATH)]
internal string szDisplayName;
///
/// Null-terminated string that describes the type of file.
///
[MarshalAs(UnmanagedType.ByValTStr, SizeCOnst= 80)]
internal string szTypeName;
}
///
/// Specifies the executable file type.
///
public enum ExecutableType : int
{
///
/// The file executable type is not able to be determined.
///
Unknown = 0,
///
/// The file is an MS-DOS .exe, .com, or .bat file.
///
DOS,
///
/// The file is a Microsoft Win32?-based console application.
///
Win32Console,
///
/// The file is a Windows application.
///
Windows,
}
// Retrieves information about an object in the file system,
// such as a file, a folder, a directory, or a drive root.
[DllImport("shell32",
EntryPoint = "SHGetFileInfo",
ExactSpelling = false,
CharSet = CharSet.Auto,
SetLastError = true)]
internal static extern IntPtr SHGetFileInfo(
string pszPath,
FileAttributes dwFileAttributes,
ref SHFILEINFO sfi,
int cbFileInfo,
SHGFI uFlags);
[SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
private ExecutableType IsExecutable(string fileName)
{
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
ExecutableType executableType = ExecutableType.Unknown;
if (File.Exists(fileName)
{
// Try to fill the same SHFILEINFO struct for the exe type. The returned pointer contains the encoded
// executable type data.
ptr = IntPtr.Zero;
ptr = SHGetFileInfo(fileName, FileAttributes.Normal, ref this.shellFileInfo, Marshal.SizeOf(typeof(SHFILEINFO)), SHGFI.EXETYPE);
// We need to split the returned pointer up into the high and low order words. These are important
// because they help distinguish some of the types. The possible values are:
//
// Value Meaning
// ----------------------------------------------------------------------------------------------
// 0 Nonexecutable file or an error condition.
// LOWORD = NE or PE and HIWORD = Windows version Microsoft Windows application.
// LOWORD = MZ and HIWORD = 0 Windows 95, Windows 98: Microsoft MS-DOS .exe, .com, or .bat file
// Microsoft Windows NT, Windows 2000, Windows XP: MS-DOS .exe or .com file
// LOWORD = PE and HIWORD = 0 Windows 95, Windows 98: Microsoft Win32 console application
// Windows NT, Windows 2000, Windows XP: Win32 console application or .bat file
// MZ = 0x5A4D - DOS signature.
// NE = 0x454E - OS/2 signature.
// LE = 0x454C - OS/2 LE or VXD signature.
// PE = 0x4550 - Win32/NT signature.
int wparam = ptr.ToInt32();
int loWord = wparam & 0xffff;
int hiWord = wparam >> 16;
if (wparam == 0)
{
executableType = ExecutableType.Unknown;
}
else
{
if (hiWord == 0x0000)
{if (loWord == 0x5A4D){ // The file is an MS-DOS .exe, .com, or .bat executableType = ExecutableType.DOS;}else if (loWord == 0x4550){ executableType = ExecutableType.Win32Console;}
}
else
{if (loWord == 0x454E || loWord == 0x4550){ executableType = ExecutableType.Windows;}else if (loWord == 0x454C){ executableType = ExecutableType.Windows;}
}
}
}
return executableType;
}
(这应该可行,但是从较大的库中提取,因此可能存在小问题.但是,它应该足够完整,以便在那里获得大部分内容.)
京公网安备 11010802041100号