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windows: add SetConsoleCursorPosition

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For details see: https://docs.microsoft.com/en-us/windows/console/SetConsoleCursorPosition

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2020-09-28 16:19:04 +02:00
parent 765f4ea38d
commit c6c7ba0ad0
3 changed files with 19 additions and 0 deletions
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5
windows/mkwinsyscall/mkwinsyscall.go
View File

@@ -202,6 +202,11 @@ func (p *Param) SyscallArgList() []string {
s = fmt.Sprintf("unsafe.Pointer(%s)", p.Name)
case t == "bool":
s = p.tmpVar()
case t == "Coord":
// Convert a COORD into a uintptr (by fooling the type system). This code
// assumes the two SHORTs are correctly laid out; the "cast" to uint32 is
// just to get a pointer to pass.
s = fmt.Sprintf("*((*uint32)(unsafe.Pointer(&%s)))", p.Name)
case strings.HasPrefix(t, "[]"):
return []string{
fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.tmpVar()),

1
windows/syscall_windows.go
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@@ -273,6 +273,7 @@ func NewCallbackCDecl(fn interface{}) uintptr {
//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 SetConsoleCursorPosition(console Handle, position Coord) (err error) = kernel32.SetConsoleCursorPosition
//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

13
windows/zsyscall_windows.go
View File

@@ -183,6 +183,7 @@ var (
procGetConsoleMode = modkernel32.NewProc("GetConsoleMode")
procSetConsoleMode = modkernel32.NewProc("SetConsoleMode")
procGetConsoleScreenBufferInfo = modkernel32.NewProc("GetConsoleScreenBufferInfo")
procSetConsoleCursorPosition = modkernel32.NewProc("SetConsoleCursorPosition")
procWriteConsoleW = modkernel32.NewProc("WriteConsoleW")
procReadConsoleW = modkernel32.NewProc("ReadConsoleW")
procCreateToolhelp32Snapshot = modkernel32.NewProc("CreateToolhelp32Snapshot")
@@ -1978,6 +1979,18 @@ func GetConsoleScreenBufferInfo(console Handle, info *ConsoleScreenBufferInfo) (
return
}
func SetConsoleCursorPosition(console Handle, position Coord) (err error) {
r1, _, e1 := syscall.Syscall(procSetConsoleCursorPosition.Addr(), 2, uintptr(console), uintptr(*((*uint32)(unsafe.Pointer(&position)))), 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 {