internal static string ReadConsole(SafeFileHandle handle, string initialContent, int charsToRead, int?controlCharacter)
{
dotCmd.Native.ConsoleHostNativeMethods.CONSOLE_READCONSOLE_CONTROL readControl = new dotCmd.Native.ConsoleHostNativeMethods.CONSOLE_READCONSOLE_CONTROL();
readControl.length = (uint)Marshal.SizeOf(readControl);
if (initialContent != null)
{
readControl.initialChars = (uint)initialContent.Length;
}
readControl.controlKeyState = 0;
//Magic VOODO starts here.
//I've found almost no documentation how to set this mask to a given key
//from what I know it only supports control characters \n \b \t etc.
if (controlCharacter.HasValue)
{
readControl.ctrlWakeupMask = (uint)(1 << controlCharacter.Value);
}
StringBuilder buffer = new StringBuilder(initialContent, charsToRead);
uint charsRead = 0;
bool result = ConsoleHostNativeMethods.ReadConsole(handle.DangerousGetHandle(), buffer, (uint)charsToRead, out charsRead, ref readControl);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot read from the input buffer", err);
}
return(buffer.ToString(0, (int)charsRead));
}
internal static void SetConsoleCursorPosition(SafeFileHandle handle, dotCmd.Native.ConsoleHostNativeMethods.COORD cursorPosition)
{
bool result = ConsoleHostNativeMethods.SetConsoleCursorPosition(handle.DangerousGetHandle(), cursorPosition);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot set the curor position", err);
}
}
internal static dotCmd.Native.ConsoleHostNativeMethods.INPUT_RECORD[] ReadConsoleKeys(SafeFileHandle handle, int charsToRead, out uint recordsRead)
{
dotCmd.Native.ConsoleHostNativeMethods.INPUT_RECORD[] inputRecords = new dotCmd.Native.ConsoleHostNativeMethods.INPUT_RECORD[charsToRead];
bool result = ConsoleHostNativeMethods.ReadConsoleInput(handle.DangerousGetHandle(), inputRecords, (uint)inputRecords.Length, out recordsRead);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot read key(s) from the input buffer", err);
}
return(inputRecords);
}
internal static dotCmd.Native.ConsoleHostNativeMethods.CONSOLE_SCREEN_BUFFER_INFO_EX SetConsoleScreenBufferInfoExtended(
SafeFileHandle handle,
ConsoleHostNativeMethods.CONSOLE_SCREEN_BUFFER_INFO_EX info)
{
bool result = ConsoleHostNativeMethods.SetConsoleScreenBufferInfoEx(handle.DangerousGetHandle(), ref info);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot set output buffer info", err);
}
return(info);
}
internal static dotCmd.Native.ConsoleHostNativeMethods.CONSOLE_SCREEN_BUFFER_INFO GetConsoleScreenBufferInfo(
SafeFileHandle handle)
{
ConsoleHostNativeMethods.CONSOLE_SCREEN_BUFFER_INFO info = new ConsoleHostNativeMethods.CONSOLE_SCREEN_BUFFER_INFO();
bool result = ConsoleHostNativeMethods.GetConsoleScreenBufferInfo(handle.DangerousGetHandle(), out info);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot get output buffer info", err);
}
return(info);
}
internal static dotCmd.Native.ConsoleHostNativeMethods.CHAR_INFO[] ReadConsoleOutput(
SafeFileHandle handle,
dotCmd.Native.ConsoleHostNativeMethods.CHAR_INFO[] buffer,
dotCmd.Native.ConsoleHostNativeMethods.COORD bufferSize,
dotCmd.Native.ConsoleHostNativeMethods.COORD bufferCoord,
ref dotCmd.Native.ConsoleHostNativeMethods.SMALL_RECT readRegion)
{
bool result = ConsoleHostNativeMethods.ReadConsoleOutput(handle.DangerousGetHandle(), buffer, bufferSize, bufferCoord, ref readRegion);
if (result == false)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot read from the output buffer", err);
}
return(buffer);
}
internal static SafeFileHandle CreateInputBuffer()
{
//We dont use GetStdHandle since it might return a redirected handle, so use the bare bones function.
var handle = ConsoleHostNativeMethods.CreateFile(
"CONIN$",
(UInt32)(ConsoleHostNativeMethods.DesiredAccess.GenericRead | ConsoleHostNativeMethods.DesiredAccess.GenericWrite),
(UInt32)ConsoleHostNativeMethods.ShareMode.ShareWrite,
(IntPtr)0,
(UInt32)ConsoleHostNativeMethods.CreationDisposition.OpenExisting,
0,
(IntPtr)0);
if (handle.IsInvalid)
{
int err = Marshal.GetLastWin32Error();
throw CreateException("Cannot get the input buffer", err);
}
return(handle);
}
