/// <summary>
/// Gets info for the given module in the given process.
/// </summary>
/// <param name="process">The process for the given module or null for the current process.</param>
/// <remarks>External process handles must be opened with PROCESS_QUERY_INFORMATION|PROCESS_VM_READ</remarks>
public static unsafe ModuleInfo GetModuleInfo(ModuleInstance module, SafeProcessHandle?process = null)
{
Error.ThrowLastErrorIfFalse(
Imports.K32GetModuleInformation(process ?? Processes.GetCurrentProcess(), module, out var info, (uint)sizeof(ModuleInfo)));
return(info);
}
/// <summary>
/// Gets the file name (path) for the given module handle in the given process.
/// </summary>
/// <param name="process">The process for the given module or null for the current process.</param>
/// <remarks>External process handles must be opened with PROCESS_QUERY_INFORMATION|PROCESS_VM_READ</remarks>
public static unsafe string GetModuleFileName(ModuleInstance module, SafeProcessHandle?process = null)
{
if (process == null)
{
return(PlatformInvoke.GrowableBufferInvoke(
(ref ValueBuffer <char> buffer) =>
{
fixed(char *b = buffer)
{
return Imports.GetModuleFileNameW(module, b, buffer.Length);
}
},
ReturnSizeSemantics.BufferTruncates
| ReturnSizeSemantics.LastErrorInsufficientBuffer
| ReturnSizeSemantics.SizeIncludesNullWhenTruncated));
}
else
{
return(PlatformInvoke.GrowableBufferInvoke(
(ref ValueBuffer <char> buffer) =>
{
fixed(char *b = buffer)
{
return Imports.K32GetModuleFileNameExW(process, module, b, buffer.Length);
}
},
ReturnSizeSemantics.BufferTruncates));
}
}
/// <summary>
/// Gets the file name (path) for the given module handle in the given process.
/// </summary>
/// <param name="process">The process for the given module or null for the current process.</param>
/// <remarks>External process handles must be opened with PROCESS_QUERY_INFORMATION|PROCESS_VM_READ</remarks>
public static string GetModuleFileName(ModuleInstance module, SafeProcessHandle process = null)
{
var wrapper = new ModuleFileNameWrapper {
Module = module, Process = process
};
return(BufferHelper.TruncatingApiInvoke(ref wrapper));
}
/// <summary>
/// Get a delegate for the given native method
/// </summary>
/// <remarks>
/// Here is a sample delegate definition:
///
/// [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
/// private delegate int DoubleDelegate(int value);
///
/// And it's native signature:
///
/// extern "C" __declspec (dllexport) int Double(int);
/// </remarks>
public static DelegateType GetFunctionDelegate <DelegateType>(ModuleInstance library, string methodName)
{
IntPtr method = Imports.GetProcAddress(library, methodName);
if (method == IntPtr.Zero)
{
throw Error.GetExceptionForLastError(methodName);
}
return(Marshal.GetDelegateForFunctionPointer <DelegateType>(method));
}
/// <summary>
/// Load the library at the given path.
/// </summary>
public static ModuleInstance LoadLibrary(string path, LoadLibraryFlags flags)
{
ModuleInstance handle = Imports.LoadLibraryExW(path, IntPtr.Zero, flags);
if (handle.IsInvalid)
{
throw Error.GetExceptionForLastError(path);
}
return(handle);
}
/// <summary>
/// Get a delegate for the given native method
/// </summary>
/// <remarks>
/// Here is a sample delegate definition:
///
/// [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
/// private delegate int DoubleDelegate(int value);
///
/// And it's native signature:
///
/// extern "C" __declspec (dllexport) int Double(int);
/// </remarks>
public static TDelegate GetFunctionDelegate <TDelegate>(ModuleInstance library, string methodName)
{
IntPtr method = Imports.GetProcAddress(library, methodName);
if (method == IntPtr.Zero)
{
Error.GetLastError().Throw(methodName);
}
return(Marshal.GetDelegateForFunctionPointer <TDelegate>(method));
}
/// <summary>
/// Gets info for the given module in the given process.
/// </summary>
/// <param name="process">The process for the given module or null for the current process.</param>
/// <remarks>External process handles must be opened with PROCESS_QUERY_INFORMATION|PROCESS_VM_READ</remarks>
public unsafe static ModuleInfo GetModuleInfo(ModuleInstance module, SafeProcessHandle process = null)
{
if (process == null)
{
process = Processes.GetCurrentProcess();
}
if (!Imports.K32GetModuleInformation(process, module, out var info, (uint)sizeof(ModuleInfo)))
{
throw Error.GetExceptionForLastError();
}
return(info);
}
public static extern bool K32GetModuleInformation(
SafeProcessHandle hProcess,
ModuleInstance hModule,
out MODULEINFO lpmodinfo,
uint cb);
public static extern uint K32GetModuleFileNameExW(
SafeProcessHandle hProcess,
ModuleInstance hModule,
SafeHandle lpFileName,
uint nSize);
public static extern uint GetModuleFileNameW(
ModuleInstance hModule,
SafeHandle lpFileName,
uint nSize);
public static extern IntPtr GetProcAddress(
ModuleInstance hModule,
[MarshalAs(UnmanagedType.LPStr)] string methodName);
