func TestFormatMessage(t *testing.T) {
dll := windows.MustLoadDLL("pdh.dll")
pdhOpenQuery := func(datasrc *uint16, userdata uint32, query *windows.Handle) (errno uintptr) {
r0, _, _ := syscall.Syscall(dll.MustFindProc("PdhOpenQueryW").Addr(), 3, uintptr(unsafe.Pointer(datasrc)), uintptr(userdata), uintptr(unsafe.Pointer(query)))
return r0
}
pdhCloseQuery := func(query windows.Handle) (errno uintptr) {
r0, _, _ := syscall.Syscall(dll.MustFindProc("PdhCloseQuery").Addr(), 1, uintptr(query), 0, 0)
return r0
}
var q windows.Handle
name, err := windows.UTF16PtrFromString("no_such_source")
if err != nil {
t.Fatal(err)
}
errno := pdhOpenQuery(name, 0, &q)
if errno == 0 {
pdhCloseQuery(q)
t.Fatal("PdhOpenQuery succeeded, but expected to fail.")
}
const flags uint32 = syscall.FORMAT_MESSAGE_FROM_HMODULE | syscall.FORMAT_MESSAGE_ARGUMENT_ARRAY | syscall.FORMAT_MESSAGE_IGNORE_INSERTS
buf := make([]uint16, 300)
_, err = windows.FormatMessage(flags, uintptr(dll.Handle), uint32(errno), 0, buf, nil)
if err != nil {
t.Fatal("FormatMessage for handle=%x and errno=%x failed: %v", dll.Handle, errno, err)
}
}
szOEMVxD [_MAX_JOYSTICKOEMVXDNAME]uint16
}
type JOYINFOEX struct {
dwSize uint32
dwFlags uint32
dwAxis [_MAX_AXIS]uint32
dwButtons uint32
dwButtonNumber uint32
dwPOV uint32
dwReserved1 uint32
dwReserved2 uint32
}
var (
winmmdll = windows.MustLoadDLL("Winmm.dll")
joyGetPosEx = winmmdll.MustFindProc("joyGetPosEx")
joyGetDevCaps = winmmdll.MustFindProc("joyGetDevCapsW")
)
type axisLimit struct {
min, max uint32
}
type joystickImpl struct {
id int
axisCount int
povAxisCount int
buttonCount int
name string
state State
// +build windows
package storedir
import (
"path/filepath"
"unsafe"
"golang.org/x/sys/windows"
)
var getDiskFreeSpaceExW = windows.MustLoadDLL("Kernel32.dll").MustFindProc("GetDiskFreeSpaceExW")
func (ds *Directory) FreeSpace(cancel <-chan struct{}) (int64, error) {
dir, err := filepath.Abs(ds.Dir)
if err != nil {
return 0, err
}
// TODO: this doesn't look like it's safe under garbage collection
var avail, total, free int64
r1, _, err := getDiskFreeSpaceExW.Call(
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(dir))),
uintptr(unsafe.Pointer(&avail)),
uintptr(unsafe.Pointer(&total)),
uintptr(unsafe.Pointer(&free)))
if r1 == 0 {
return 0, err
}
return free, nil
// Windows API functions for manipulating ACLs.
package api
import (
"golang.org/x/sys/windows"
)
var advapi32 = windows.MustLoadDLL("advapi32.dll")
