forked from mirror/readline
68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
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// +build windows
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package readline
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import (
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"syscall"
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"unsafe"
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)
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type (
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short int16
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word uint16
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small_rect struct {
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left short
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top short
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right short
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bottom short
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}
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coord struct {
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x short
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y short
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}
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console_screen_buffer_info struct {
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size coord
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cursor_position coord
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attributes word
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window small_rect
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maximum_window_size coord
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}
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)
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var (
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StdinFd = 0
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kernel32 = syscall.NewLazyDLL("kernel32.dll")
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tmp_info console_screen_buffer_info
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proc_get_console_screen_buffer_info = kernel32.NewProc("GetConsoleScreenBufferInfo")
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)
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func get_console_screen_buffer_info(h syscall.Handle, info *console_screen_buffer_info) (err error) {
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r0, _, e1 := syscall.Syscall(proc_get_console_screen_buffer_info.Addr(),
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2, uintptr(h), uintptr(unsafe.Pointer(info)), 0)
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if int(r0) == 0 {
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if e1 != 0 {
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err = error(e1)
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} else {
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err = syscall.EINVAL
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}
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}
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return
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}
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func get_term_size(out syscall.Handle) coord {
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err := get_console_screen_buffer_info(out, &tmp_info)
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if err != nil {
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panic(err)
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}
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return tmp_info.size
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}
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// get width of the terminal
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func getWidth() int {
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return int(get_term_size(syscall.Stdin).x)
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}
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