// Code generated by 'go generate'; DO NOT EDIT.

package elevate

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 (
	modntdll  = windows.NewLazySystemDLL("ntdll.dll")
	modole32  = windows.NewLazySystemDLL("ole32.dll")
	moduser32 = windows.NewLazySystemDLL("user32.dll")

	procRtlInitUnicodeString     = modntdll.NewProc("RtlInitUnicodeString")
	procRtlGetCurrentPeb         = modntdll.NewProc("RtlGetCurrentPeb")
	procCoInitializeEx           = modole32.NewProc("CoInitializeEx")
	procCoUninitialize           = modole32.NewProc("CoUninitialize")
	procCoGetObject              = modole32.NewProc("CoGetObject")
	procGetWindowThreadProcessId = moduser32.NewProc("GetWindowThreadProcessId")
	procGetShellWindow           = moduser32.NewProc("GetShellWindow")
)

func rtlInitUnicodeString(destinationString *cUNICODE_STRING, sourceString *uint16) {
	syscall.Syscall(procRtlInitUnicodeString.Addr(), 2, uintptr(unsafe.Pointer(destinationString)), uintptr(unsafe.Pointer(sourceString)), 0)
	return
}

func rtlGetCurrentPeb() (peb *cPEB) {
	r0, _, _ := syscall.Syscall(procRtlGetCurrentPeb.Addr(), 0, 0, 0, 0)
	peb = (*cPEB)(unsafe.Pointer(r0))
	return
}

func coInitializeEx(reserved uintptr, coInit uint32) (ret error) {
	r0, _, _ := syscall.Syscall(procCoInitializeEx.Addr(), 2, uintptr(reserved), uintptr(coInit), 0)
	if r0 != 0 {
		ret = syscall.Errno(r0)
	}
	return
}

func coUninitialize() {
	syscall.Syscall(procCoUninitialize.Addr(), 0, 0, 0, 0)
	return
}

func coGetObject(name *uint16, bindOpts *cBIND_OPTS3, guid *windows.GUID, functionTable ***[0xffff]uintptr) (ret error) {
	r0, _, _ := syscall.Syscall6(procCoGetObject.Addr(), 4, uintptr(unsafe.Pointer(name)), uintptr(unsafe.Pointer(bindOpts)), uintptr(unsafe.Pointer(guid)), uintptr(unsafe.Pointer(functionTable)), 0, 0)
	if r0 != 0 {
		ret = syscall.Errno(r0)
	}
	return
}

func getWindowThreadProcessId(hwnd uintptr, pid *uint32) (tid uint32, err error) {
	r0, _, e1 := syscall.Syscall(procGetWindowThreadProcessId.Addr(), 2, uintptr(hwnd), uintptr(unsafe.Pointer(pid)), 0)
	tid = uint32(r0)
	if tid == 0 {
		if e1 != 0 {
			err = errnoErr(e1)
		} else {
			err = syscall.EINVAL
		}
	}
	return
}

func getShellWindow() (hwnd uintptr) {
	r0, _, _ := syscall.Syscall(procGetShellWindow.Addr(), 0, 0, 0, 0)
	hwnd = uintptr(r0)
	return
}