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moby--moby/pkg/term/console_windows.go
John Gossman 975b6e598d Refactor pkg/term package for Windows tty support
Signed-off-by: John Gossman <johngos@microsoft.com>
2014-11-14 18:20:53 -08:00

87 lines
1.9 KiB
Go

// +build windows
package term
import (
"syscall"
"unsafe"
)
const (
// Consts for Get/SetConsoleMode function
// see http://msdn.microsoft.com/en-us/library/windows/desktop/ms683167(v=vs.85).aspx
ENABLE_ECHO_INPUT = 0x0004
ENABLE_INSERT_MODE = 0x0020
ENABLE_LINE_INPUT = 0x0002
ENABLE_MOUSE_INPUT = 0x0010
ENABLE_PROCESSED_INPUT = 0x0001
ENABLE_QUICK_EDIT_MODE = 0x0040
ENABLE_WINDOW_INPUT = 0x0008
// If parameter is a screen buffer handle, additional values
ENABLE_PROCESSED_OUTPUT = 0x0001
ENABLE_WRAP_AT_EOL_OUTPUT = 0x0002
)
var kernel32DLL = syscall.NewLazyDLL("kernel32.dll")
var (
setConsoleModeProc = kernel32DLL.NewProc("SetConsoleMode")
getConsoleScreenBufferInfoProc = kernel32DLL.NewProc("GetConsoleScreenBufferInfo")
)
func GetConsoleMode(fileDesc uintptr) (uint32, error) {
var mode uint32
err := syscall.GetConsoleMode(syscall.Handle(fileDesc), &mode)
return mode, err
}
func SetConsoleMode(fileDesc uintptr, mode uint32) error {
r, _, err := setConsoleModeProc.Call(fileDesc, uintptr(mode), 0)
if r == 0 {
if err != nil {
return err
}
return syscall.EINVAL
}
return nil
}
// types for calling GetConsoleScreenBufferInfo
// see http://msdn.microsoft.com/en-us/library/windows/desktop/ms682093(v=vs.85).aspx
type (
SHORT int16
SMALL_RECT struct {
Left SHORT
Top SHORT
Right SHORT
Bottom SHORT
}
COORD struct {
X SHORT
Y SHORT
}
WORD uint16
CONSOLE_SCREEN_BUFFER_INFO struct {
dwSize COORD
dwCursorPosition COORD
wAttributes WORD
srWindow SMALL_RECT
dwMaximumWindowSize COORD
}
)
func GetConsoleScreenBufferInfo(fileDesc uintptr) (*CONSOLE_SCREEN_BUFFER_INFO, error) {
var info CONSOLE_SCREEN_BUFFER_INFO
r, _, err := getConsoleScreenBufferInfoProc.Call(uintptr(fileDesc), uintptr(unsafe.Pointer(&info)), 0)
if r == 0 {
if err != nil {
return nil, err
}
return nil, syscall.EINVAL
}
return &info, nil
}