# GoGUI
# Flag
Golang调用windows下的dll动态库中的函数使用
syscall
调用
- GUI https://github.com/lxn (opens new window)
- https://github.com/chzyer/readline (opens new window)
- https://github.com/go-ole/go-ole (opens new window)
- https://github.com/yusufpapurcu/wmi (opens new window)
- https://github.com/kardianos/service (opens new window)
- https://github.com/ying32/govcl (opens new window)
- https://github.com/akavel/rsrc (opens new window)
- https://github.com/tc-hib/winres (opens new window)
- https://github.com/josephspurrier/goversioninfo (opens new window)
- https://github.com/fyne-io/fyne (opens new window)
- https://github.com/visualfc/atk (opens new window)
- https://github.com/vugu/vugu (opens new window)
- https://github.com/wailsapp/wails (opens new window)
- https://qiankunli.github.io/2020/11/21/goroutine_system_call.html (opens new window)
- golang windows程序获取管理员权限(UAC ) (opens new window)
- how-do-i-force-my-net-application-to-run-as-administrator (opens new window)
- https://docs.microsoft.com/zh-cn/previous-versions/bb756929(v=msdn.10) (opens new window)
# 设置壁纸
- main.go
package main
import (
"errors"
"flag"
"image/jpeg"
"log"
"os"
"path/filepath"
"github.com/golang/sys/windows/registry"
"golang.org/x/image/bmp"
)
type WallpaperStyle uint
func (wps WallpaperStyle) String() string {
return wallpaperStyles[wps]
}
const (
Fill WallpaperStyle = iota // 填充
Fit // 适应
Stretch // 拉伸
Tile // 平铺
Center // 居中
Cross // 跨区
)
var wallpaperStyles = map[WallpaperStyle]string{
0: "填充",
1: "适应",
2: "拉伸",
3: "平铺",
4: "居中",
5: "跨区"}
var (
bgFile string
bgStyle int
sFile string
waitTime int
activeScreen bool
passwd bool
)
var (
regist registry.Key
)
func init() {
flag.StringVar(&bgFile, "b", "", "set bg file path.")
flag.IntVar(&bgStyle, "style", 2, "set desktop WallpaperStyle")
flag.BoolVar(&activeScreen, "a", true, "set screen active.")
flag.StringVar(&sFile, "s", "", "set screen save file path.")
flag.IntVar(&waitTime, "t", 0, "set screen save wait time.")
flag.BoolVar(&passwd, "p", true, "sets whether the screen saver requires the user to enter a password to display the Windows desktop. ")
}
func main() {
flag.Parse()
var err error
regist, err = registry.OpenKey(registry.CURRENT_USER, `Control Panel\Desktop`, registry.ALL_ACCESS)
checkErr(err)
defer regist.Close()
// 设置桌面背景
if bgFile != "" {
style := WallpaperStyle(bgStyle)
if bgStyle < 0 || bgStyle > 5 {
style = Stretch
}
setDesktopWallpaper(bgFile, style)
log.Printf("设置桌面背景和位置 --> %s, %s\n", bgFile, style)
}
ok := getScreenSaver()
log.Printf("获取屏幕保护开关 --> %t\n", ok)
// 关闭屏幕保护
if ok && !activeScreen {
regist.DeleteValue("SCRNSAVE.EXE")
log.Println("关闭屏幕保护")
return
}
// 设置屏幕保护
if sFile != "" && activeScreen {
err = regist.SetStringValue("SCRNSAVE.EXE", sFile)
checkErr(err)
setScreenSaver(SPI_SETSCREENSAVEACTIVE, TRUE)
log.Printf("设置屏幕保护 --> %s\n", sFile)
ok = getScreenSaver()
}
if ok {
// 设置屏幕保护时间
if waitTime > 0 {
setScreenSaver(SPI_SETSCREENSAVETIMEOUT, uint32(60*waitTime))
log.Printf("设置屏幕保护等待时间 --> %d分钟\n", waitTime)
}
// 设置屏幕保护 在恢复时使用密码
var (
passwdSwitch string
passwdBool uint32
)
if passwd {
passwdSwitch = "1"
passwdBool = TRUE
} else {
passwdSwitch = "0"
passwdBool = FALSE
}
// XP / server 2003
setRegistString("ScreenSaverIsSecure", passwdSwitch)
// vista or later
if checkVersion() {
setScreenSaver(SPI_SETSCREENSAVESECURE, passwdBool)
}
log.Printf("设置屏幕保护恢复时是否使用密码 --> %t\n", passwd)
}
}
func checkErr(err error) {
if err != nil {
log.Fatal(err)
}
}
// http://blog.csdn.net/kfysck/article/details/8153264
// Check that the OS is Vista or later (Vista is v6.0).
func checkVersion() bool {
version := GetVersion()
major := version & 0xFF
if major < 6 {
return false
}
return true
}
// jpg转换为bmp
func ConvertedWallpaper(bgfile string) string {
file, err := os.Open(bgfile)
checkErr(err)
defer file.Close()
img, err := jpeg.Decode(file) //解码
checkErr(err)
bmpPath := os.Getenv("USERPROFILE") + `\Local Settings\Application Data\Microsoft\Wallpaper1.bmp`
bmpfile, err := os.Create(bmpPath)
checkErr(err)
defer bmpfile.Close()
err = bmp.Encode(bmpfile, img)
checkErr(err)
return bmpPath
}
func setDesktopWallpaper(bgFile string, style WallpaperStyle) error {
ext := filepath.Ext(bgFile)
// vista 以下的系统需要转换jpg为bmp(xp、2003)
if !checkVersion() && ext != ".bmp" {
setRegistString("ConvertedWallpaper", bgFile)
bgFile = ConvertedWallpaper(bgFile)
}
// 设置桌面背景
setRegistString("Wallpaper", bgFile)
/* 设置壁纸风格和展开方式
在Control Panel\Desktop中的两个键值将被设置
TileWallpaper
0: 图片不被平铺
1: 被平铺
WallpaperStyle
0: 0表示图片居中,1表示平铺
2: 拉伸填充整个屏幕
6: 拉伸适应屏幕并保持高度比
10: 图片被调整大小裁剪适应屏幕保持纵横比
22: 跨区
*/
var bgTileWallpaper, bgWallpaperStyle string
bgTileWallpaper = "0"
switch style {
case Fill: // (Windows 7 or later)
bgWallpaperStyle = "10"
case Fit: // (Windows 7 or later)
bgWallpaperStyle = "6"
case Stretch:
bgWallpaperStyle = "2"
case Tile:
bgTileWallpaper = "1"
bgWallpaperStyle = "0"
case Center:
bgWallpaperStyle = "0"
case Cross: // win10 or later
bgWallpaperStyle = "22"
}
setRegistString("WallpaperStyle", bgWallpaperStyle)
setRegistString("TileWallpaper", bgTileWallpaper)
ok := SystemParametersInfo(SPI_SETDESKWALLPAPER, FALSE, nil, SPIF_UPDATEINIFILE|SPIF_SENDWININICHANGE)
if !ok {
return errors.New("Desktop background Settings fail.")
}
return nil
}
func setRegistString(name, value string) {
err := regist.SetStringValue(name, value)
checkErr(err)
}
func setScreenSaver(uiAction, uiParam uint32) {
ok := SystemParametersInfo(uiAction, uiParam, nil, SPIF_UPDATEINIFILE|SPIF_SENDWININICHANGE)
if !ok {
log.Fatal("Screen saver Settings fail.")
}
}
func getScreenSaver() bool {
_, _, err := regist.GetStringValue("SCRNSAVE.EXE")
if err != nil {
return false
}
return true
}
win.go
- https://github.com/golang/go/wiki/WindowsDLLs (opens new window)
- https://github.com/rainycape/dl (opens new window)
- golang syscall原理 (opens new window)
- https://gitlab.com/gitlab-org/gitlab-runner/-/blob/main/vendor/golang.org/x/sys/windows/dll_windows.go (opens new window)
- Breaking all the rules: Using Go to call Windows API (opens new window)
package main
import (
"syscall"
"unsafe"
)
const (
// 获取屏幕保护开关
SPI_GETSCREENSAVEACTIVE = 0x0010
// 设置屏保开关
SPI_SETSCREENSAVEACTIVE = 0x0011
// 设置屏保等待时间
SPI_SETSCREENSAVETIMEOUT = 0x000F
// 设备屏保在恢复时显示屏幕
SPI_SETSCREENSAVESECURE = 0x0077
// 设置桌面背景
SPI_SETDESKWALLPAPER = 0x0014
// 将新的系统范围的参数设置写入用户配置文件。
SPIF_UPDATEINIFILE = 1
// 更新用户配置文件后广播WM_SETTINGCHANGE消息。
SPIF_SENDWININICHANGE = 2
FALSE = 0
TRUE = 1
)
var (
// Library
libuser32 uintptr
libkernel32 uintptr
// Functions
systemParametersInfo uintptr
getVersion uintptr
)
func init() {
// Library
libuser32 = MustLoadLibrary("user32.dll")
libkernel32 = MustLoadLibrary("kernel32.dll")
// SystemParametersInfo有两个子函数针对不同的字符集:
// SystemParametersInfoW(Unicode)和SystemParametersInfoA(ANSI)
systemParametersInfo = MustGetProcAddress(libuser32, "SystemParametersInfoW")
getVersion = MustGetProcAddress(libkernel32, "GetVersion")
}
func MustLoadLibrary(name string) uintptr {
lib, err := syscall.LoadLibrary(name)
//modwinspool = syscall.NewLazyDLL("winspool.drv")
//modwinspool, err = syscall.LoadDLL("winspool.drv")
//kernel32, err = syscall.LoadLibrary("winspool.drv")
//modwinspool = windows.NewLazySystemDLL("winspool.drv")
// procClosePrinter = modwinspool.NewProc("ClosePrinter")
//h = syscall.MustLoadDLL("kernel32.dll")
//c = h.MustFindProc("GetDiskFreeSpaceExW")
if err != nil {
panic(err)
}
return uintptr(lib)
}
func MustGetProcAddress(lib uintptr, name string) uintptr {
addr, err := syscall.GetProcAddress(syscall.Handle(lib), name)
if err != nil {
panic(err)
}
return uintptr(addr)
}
/*
之前已经通过注册表设置了壁纸的参数,但是还没有刷新配置。
调用Win32 API位于user32.dll中函数SystemParametersInfo设置桌面壁纸,它支持我们从系统中获得硬件和配置信息。
它有四个参数,第一个指明调用这个函数所要执行的操作,接下来的两个参数指明将要设置的数据,依据第一个参数的设定。
*/
// uiAction:该参数指定要查询或设置的参数,换壁纸是SPI_SETDESKWALLPAPER(使得壁纸改变保存并持续可见)
// uiParam:附加值
// pvParam:要修改或者查询的缓冲区
// fWinIni:指定用户配置文件是否被更新,如果是这样,则指定是否 WM_SETTINGCHANGE 将消息广播到所有的顶层窗口的更改通知他们,可以是0也可以是下列值:
// SPIF_UPDATEINIFILE:把新的系统参数的设置内容写入用户配置文件。
// SPIF_SENDCHANGE:在更新用户配置文件之后发送WM_SETTINGCHANGE消息。
// SPI_SENDWININICHANGE:与SPIF_SENDCHANGE一样。
// 换壁纸我们要给uiAction指定SPI_SETDESKWALLPAPER标志位,然后把SPIF_UPDATEINIFILE传递给fWinIni。
func SystemParametersInfo(uiAction, uiParam uint32, pvParam unsafe.Pointer, fWinIni uint32) bool {
// nargs 即参数的个数,一旦传错, 轻则调用失败,重者直接APPCARSH,多余的参数,用0代替
ret, _, _ := syscall.Syscall6(systemParametersInfo, 4, uintptr(uiAction), uintptr(uiParam), uintptr(pvParam),
uintptr(fWinIni), 0, 0)
return ret != 0
}
func GetVersion() int64 {
ret, _, _ := syscall.Syscall(getVersion, 0, 0, 0, 0)
return int64(ret)
}
func stringToPointer(str string) unsafe.Pointer {
return unsafe.Pointer(syscall.StringToUTF16Ptr(str))
}
# 操作注册表
package main
import (
"golang.org/x/sys/windows/registry"
)
func main() {
// 创建:指定路径的项
// 路径:HKEY_CURRENT_USER\Software\Hello Go
key, exists, _ := registry.CreateKey(registry.CURRENT_USER, `SOFTWARE\Hello Go`, registry.ALL_ACCESS)
defer key.Close()
// 判断是否已经存在了
if exists {
println(`键已存在`)
} else {
println(`新建注册表键`)
}
// 写入:32位整形值
key.SetDWordValue(`32位整形值`, uint32(123456))
// 写入:64位整形值
key.SetQWordValue(`64位整形值`, uint64(123456))
// 写入:字符串
key.SetStringValue(`字符串`, `hello`)
// 写入:字符串数组
key.SetStringsValue(`字符串数组`, []string{`hello`, `world`})
// 写入:二进制
key.SetBinaryValue(`二进制`, []byte{0x11, 0x22})
// 读取:字符串
s, _, _ := key.GetStringValue(`字符串`)
println(s)
// 读取:一个项下的所有子项
keys, _ := key.ReadSubKeyNames(0)
for _, key_subkey := range keys {
// 输出所有子项的名字
println(key_subkey)
}
// 创建:子项
subkey, _, _ := registry.CreateKey(key, `子项`, registry.ALL_ACCESS)
defer subkey.Close()
// 删除:子项
// 该键有子项,所以会删除失败
// 没有子项,删除成功
registry.DeleteKey(key, `子项`)
}