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path: root/zsyscall_windows.go
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// Code generated by 'go generate'; DO NOT EDIT.

package main

import (
	"syscall"
	"unsafe"

	"golang.org/x/sys/windows"
)

var _ unsafe.Pointer

// Do the interface allocations only once for common
// Errno values.
const (
	errnoERROR_IO_PENDING = 997
)

var (
	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
)

// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
	switch e {
	case 0:
		return nil
	case errnoERROR_IO_PENDING:
		return errERROR_IO_PENDING
	}
	// TODO: add more here, after collecting data on the common
	// error values see on Windows. (perhaps when running
	// all.bat?)
	return e
}

var (
	moduser32   = windows.NewLazySystemDLL("user32.dll")
	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
	modshell32  = windows.NewLazySystemDLL("shell32.dll")

	procMessageBoxExW  = moduser32.NewProc("MessageBoxExW")
	procIsWow64Process = modkernel32.NewProc("IsWow64Process")
	procShellExecuteW  = modshell32.NewProc("ShellExecuteW")
)

func messageBoxEx(hwnd windows.Handle, text *uint16, title *uint16, typ uint, languageId uint16) {
	syscall.Syscall6(procMessageBoxExW.Addr(), 5, uintptr(hwnd), uintptr(unsafe.Pointer(text)), uintptr(unsafe.Pointer(title)), uintptr(typ), uintptr(languageId), 0)
	return
}

func isWow64Process(handle windows.Handle, isWow64 *bool) (err error) {
	r1, _, e1 := syscall.Syscall(procIsWow64Process.Addr(), 2, uintptr(handle), uintptr(unsafe.Pointer(isWow64)), 0)
	if r1 == 0 {
		if e1 != 0 {
			err = errnoErr(e1)
		} else {
			err = syscall.EINVAL
		}
	}
	return
}

func shellExecute(hwnd windows.Handle, verb *uint16, file *uint16, args *uint16, cwd *uint16, showCmd int) (err error) {
	r1, _, e1 := syscall.Syscall6(procShellExecuteW.Addr(), 6, uintptr(hwnd), uintptr(unsafe.Pointer(verb)), uintptr(unsafe.Pointer(file)), uintptr(unsafe.Pointer(args)), uintptr(unsafe.Pointer(cwd)), uintptr(showCmd))
	if r1 == 0 {
		if e1 != 0 {
			err = errnoErr(e1)
		} else {
			err = syscall.EINVAL
		}
	}
	return
}