public ProcessMemoryStream(int processId, ProcessAccess desiredAccess = ProcessAccess.ReadWrite, int bufferSize = 4096, bool leaveOpen = false)
{
if (processId < 0)
throw new ArgumentOutOfRangeException("Process ID must be a positive value");
if (bufferSize < 1)
throw new ArgumentOutOfRangeException("Buffer size must be at least 1 byte");
var win32Flags = Win32ProcessAccess.VmOperation;
// If read mode was requested, bitwise OR the flag
if (desiredAccess.HasFlag(ProcessAccess.Read))
win32Flags |= Win32ProcessAccess.VmRead;
// If write mode was requested, bitwise OR the flag
if (desiredAccess.HasFlag(ProcessAccess.Write))
win32Flags |= Win32ProcessAccess.VmWrite;
// Open the process and check if the handle is valid
this.processAccess = desiredAccess;
this.processHandle = NativeMethods.OpenProcess(win32Flags, false, processId);
this.leaveOpen = leaveOpen;
// Check if handle is valid
if (this.processHandle.IsInvalid)
{
var errorCode = NativeMethods.GetLastError();
throw new IOException("Unable to open process", errorCode);
}
// Allocate read and write buffers
this.readBuffer = new byte[bufferSize];
this.writeBuffer = new byte[bufferSize];
}
internal static ProcessAccessFlags ToWin32Flags(this ProcessAccess access)
{
var flags = ProcessAccessFlags.VmOperation | ProcessAccessFlags.QueryInformation;
if (access.HasFlag(ProcessAccess.Read))
{
flags |= ProcessAccessFlags.VmRead;
}
if (access.HasFlag(ProcessAccess.Write))
{
flags |= ProcessAccessFlags.VmWrite;
}
return(flags);
}
public ProcessMemoryStream(int processId, ProcessAccess desiredAccess = ProcessAccess.ReadWrite, int bufferSize = 4096, bool leaveOpen = false)
{
if (processId < 0)
{
throw new ArgumentOutOfRangeException("Process ID must be a positive value");
}
if (bufferSize < 1)
{
throw new ArgumentOutOfRangeException("Buffer size must be at least 1 byte");
}
var win32Flags = Win32ProcessAccess.VmOperation;
// If read mode was requested, bitwise OR the flag
if (desiredAccess.HasFlag(ProcessAccess.Read))
{
win32Flags |= Win32ProcessAccess.VmRead;
}
// If write mode was requested, bitwise OR the flag
if (desiredAccess.HasFlag(ProcessAccess.Write))
{
win32Flags |= Win32ProcessAccess.VmWrite;
}
// Open the process and check if the handle is valid
this.processAccess = desiredAccess;
this.processHandle = NativeMethods.OpenProcess(win32Flags, false, processId);
this.leaveOpen = leaveOpen;
// Check if handle is valid
if (this.processHandle.IsInvalid)
{
var errorCode = NativeMethods.GetLastError();
throw new IOException("Unable to open process", errorCode);
}
// Allocate read and write buffers
this.readBuffer = new byte[bufferSize];
this.writeBuffer = new byte[bufferSize];
}