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windows: add SetConsoleMode and GetConsoleScreenBufferInfo

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Add the SetConsoleMode and GetConsoleScreenBufferInfo functions, as well
as the corresponding types and constants. For details see:

  https://docs.microsoft.com/en-us/windows/console/setconsolemode
  https://docs.microsoft.com/en-us/windows/console/getconsolescreenbufferinfo
  https://docs.microsoft.com/en-us/windows/console/console-screen-buffer-info-str

Change-Id: I17dcd62ffde12b5c94e1245b6836d067aea3dc6e
Reviewed-on: https://go-review.googlesource.com/52670
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
This commit is contained in:
Tobias Klauser
2017-08-02 09:46:05 +02:00
committed by Alex Brainman
parent e312636bda
commit d6c3f2be45
3 changed files with 75 additions and 0 deletions
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2
windows/syscall_windows.go
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@@ -176,6 +176,8 @@ func NewCallbackCDecl(fn interface{}) uintptr
//sys RegQueryValueEx(key Handle, name *uint16, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegQueryValueExW
//sys getCurrentProcessId() (pid uint32) = kernel32.GetCurrentProcessId
//sys GetConsoleMode(console Handle, mode *uint32) (err error) = kernel32.GetConsoleMode
//sys SetConsoleMode(console Handle, mode uint32) (err error) = kernel32.SetConsoleMode
//sys GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) = kernel32.GetConsoleScreenBufferInfo
//sys WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) = kernel32.WriteConsoleW
//sys ReadConsole(console Handle, buf *uint16, toread uint32, read *uint32, inputControl *byte) (err error) = kernel32.ReadConsoleW
//sys CreateToolhelp32Snapshot(flags uint32, processId uint32) (handle Handle, err error) [failretval==InvalidHandle] = kernel32.CreateToolhelp32Snapshot

26
windows/zsyscall_windows.go
View File

@@ -161,6 +161,8 @@ var (
procRegQueryValueExW = modadvapi32.NewProc("RegQueryValueExW")
procGetCurrentProcessId = modkernel32.NewProc("GetCurrentProcessId")
procGetConsoleMode = modkernel32.NewProc("GetConsoleMode")
procSetConsoleMode = modkernel32.NewProc("SetConsoleMode")
procGetConsoleScreenBufferInfo = modkernel32.NewProc("GetConsoleScreenBufferInfo")
procWriteConsoleW = modkernel32.NewProc("WriteConsoleW")
procReadConsoleW = modkernel32.NewProc("ReadConsoleW")
procCreateToolhelp32Snapshot = modkernel32.NewProc("CreateToolhelp32Snapshot")
@@ -1629,6 +1631,30 @@ func GetConsoleMode(console Handle, mode *uint32) (err error) {
return
}
func SetConsoleMode(console Handle, mode uint32) (err error) {
r1, _, e1 := syscall.Syscall(procSetConsoleMode.Addr(), 2, uintptr(console), uintptr(mode), 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (err error) {
r1, _, e1 := syscall.Syscall(procGetConsoleScreenBufferInfo.Addr(), 2, uintptr(console), uintptr(unsafe.Pointer(&info)), 0)
if r1 == 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func WriteConsole(console Handle, buf *uint16, towrite uint32, written *uint32, reserved *byte) (err error) {
r1, _, e1 := syscall.Syscall6(procWriteConsoleW.Addr(), 5, uintptr(console), uintptr(unsafe.Pointer(buf)), uintptr(towrite), uintptr(unsafe.Pointer(written)), uintptr(unsafe.Pointer(reserved)), 0)
if r1 == 0 {

47
windows/ztypes_windows.go
View File

@@ -1233,3 +1233,50 @@ const (
IfOperStatusNotPresent = 6
IfOperStatusLowerLayerDown = 7
)
// Console related constants used for the mode parameter to SetConsoleMode. See
// https://docs.microsoft.com/en-us/windows/console/setconsolemode for details.
const (
ENABLE_PROCESSED_INPUT = 0x1
ENABLE_LINE_INPUT = 0x2
ENABLE_ECHO_INPUT = 0x4
ENABLE_WINDOW_INPUT = 0x8
ENABLE_MOUSE_INPUT = 0x10
ENABLE_INSERT_MODE = 0x20
ENABLE_QUICK_EDIT_MODE = 0x40
ENABLE_EXTENDED_FLAGS = 0x80
ENABLE_AUTO_POSITION = 0x100
ENABLE_VIRTUAL_TERMINAL_INPUT = 0x200
ENABLE_PROCESSED_OUTPUT = 0x1
ENABLE_WRAP_AT_EOL_OUTPUT = 0x2
ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4
DISABLE_NEWLINE_AUTO_RETURN = 0x8
ENABLE_LVB_GRID_WORLDWIDE = 0x10
)
type Coord struct {
X int16
Y int16
}
type SmallRect struct {
Left int16
Top int16
Right int16
Bottom int16
}
// Used with GetConsoleScreenBuffer to retreive information about a console
// screen buffer. See
// https://docs.microsoft.com/en-us/windows/console/console-screen-buffer-info-str
// for details.
type ConsoleScreenBufferInfo struct {
Size Coord
CursorPosition Coord
Attributes uint16
Window SmallRect
MaximumWindowSize Coord
}