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Golang 语言调用动态库实现OpenGL及windows的API编程
最近晚上没有事情的时候，研究下了开源的walk-master源码，自己简单的分析了下，如果在
import (
"github.com/lxn/win"
)
包有的情况下，就已经可以实现了windows的GUI编程，简单以键盘操作为例：
源码在文章结尾，但是可惜的是GIT根本没有"github.com/lxn/win"的包，我估计是涉及到微软的API可能存在风险的问题，已经找不到第三方包。
我可以设想其他的办法实现，同样我们调用windows的DLL来实现就是OK的
GO语言调用windows的DLL的实际例子
package main
import (
"syscall"
)
func callDll(){
dll32 := syscall.NewLazyDLL("example2.dll")
println("call dll:",dll32.Name)
g:=dll32.NewProc("gcd")
ret, _, _ :=g.Call(uintptr(4),uintptr(8))
println()
println("get the result:",ret)
}
func main() {
callDll()
}
这样我们就可以利用windows的API了，同样可以做GUI的编程了。
那样我们就可以在windows下用GO语言实现曾经的键盘记录等好玩的软件了
--------------------------------------------------------------------------
源码：
package walk
import (
"bytes"
)
import (
"github.com/lxn/win"
)
type Key uint16
func (k Key) String() string {
return key2string[k]
}
const (
KeyLButton Key = win.VK_LBUTTON
KeyRButton Key = win.VK_RBUTTON
KeyCancel Key = win.VK_CANCEL
KeyMButton Key = win.VK_MBUTTON
KeyXButton1 Key = win.VK_XBUTTON1
KeyXButton2 Key = win.VK_XBUTTON2
KeyBack Key = win.VK_BACK
KeyTab Key = win.VK_TAB
KeyClear Key = win.VK_CLEAR
KeyReturn Key = win.VK_RETURN
KeyShift Key = win.VK_SHIFT
KeyControl Key = win.VK_CONTROL
KeyAlt Key = win.VK_MENU
KeyMenu Key = win.VK_MENU
KeyPause Key = win.VK_PAUSE
KeyCapital Key = win.VK_CAPITAL
KeyKana Key = win.VK_KANA
KeyHangul Key = win.VK_HANGUL
KeyJunja Key = win.VK_JUNJA
KeyFinal Key = win.VK_FINAL
KeyHanja Key = win.VK_HANJA
KeyKanji Key = win.VK_KANJI
KeyEscape Key = win.VK_ESCAPE
KeyConvert Key = win.VK_CONVERT
KeyNonconvert Key = win.VK_NONCONVERT
KeyAccept Key = win.VK_ACCEPT
KeyModeChange Key = win.VK_MODECHANGE
KeySpace Key = win.VK_SPACE
KeyPrior Key = win.VK_PRIOR
KeyNext Key = win.VK_NEXT
KeyEnd Key = win.VK_END
KeyHome Key = win.VK_HOME
KeyLeft Key = win.VK_LEFT
KeyUp Key = win.VK_UP
KeyRight Key = win.VK_RIGHT
KeyDown Key = win.VK_DOWN
KeySelect Key = win.VK_SELECT
KeyPrint Key = win.VK_PRINT
KeyExecute Key = win.VK_EXECUTE
KeySnapshot Key = win.VK_SNAPSHOT
KeyInsert Key = win.VK_INSERT
KeyDelete Key = win.VK_DELETE
KeyHelp Key = win.VK_HELP
Key0 Key = 0x30
Key1 Key = 0x31
Key2 Key = 0x32
Key3 Key = 0x33
Key4 Key = 0x34
Key5 Key = 0x35
Key6 Key = 0x36
Key7 Key = 0x37
Key8 Key = 0x38
Key9 Key = 0x39
KeyA Key = 0x41
KeyB Key = 0x42
KeyC Key = 0x43
KeyD Key = 0x44
KeyE Key = 0x45
KeyF Key = 0x46
KeyG Key = 0x47
KeyH Key = 0x48
KeyI Key = 0x49
KeyJ Key = 0x4A
KeyK Key = 0x4B
KeyL Key = 0x4C
KeyM Key = 0x4D
KeyN Key = 0x4E
KeyO Key = 0x4F
KeyP Key = 0x50
KeyQ Key = 0x51
KeyR Key = 0x52
KeyS Key = 0x53
KeyT Key = 0x54
KeyU Key = 0x55
KeyV Key = 0x56
KeyW Key = 0x57
KeyX Key = 0x58
KeyY Key = 0x59
KeyZ Key = 0x5A
KeyLWin Key = win.VK_LWIN
KeyRWin Key = win.VK_RWIN
KeyApps Key = win.VK_APPS
KeySleep Key = win.VK_SLEEP
KeyNumpad0 Key = win.VK_NUMPAD0
KeyNumpad1 Key = win.VK_NUMPAD1
KeyNumpad2 Key = win.VK_NUMPAD2
KeyNumpad3 Key = win.VK_NUMPAD3
KeyNumpad4 Key = win.VK_NUMPAD4
KeyNumpad5 Key = win.VK_NUMPAD5
KeyNumpad6 Key = win.VK_NUMPAD6
KeyNumpad7 Key = win.VK_NUMPAD7
KeyNumpad8 Key = win.VK_NUMPAD8
KeyNumpad9 Key = win.VK_NUMPAD9
KeyMultiply Key = win.VK_MULTIPLY
KeyAdd Key = win.VK_ADD
KeySeparator Key = win.VK_SEPARATOR
KeySubtract Key = win.VK_SUBTRACT
KeyDecimal Key = win.VK_DECIMAL
KeyDivide Key = win.VK_DIVIDE
KeyF1 Key = win.VK_F1
KeyF2 Key = win.VK_F2
KeyF3 Key = win.VK_F3
KeyF4 Key = win.VK_F4
KeyF5 Key = win.VK_F5
KeyF6 Key = win.VK_F6
KeyF7 Key = win.VK_F7
KeyF8 Key = win.VK_F8
KeyF9 Key = win.VK_F9
KeyF10 Key = win.VK_F10
KeyF11 Key = win.VK_F11
KeyF12 Key = win.VK_F12
KeyF13 Key = win.VK_F13
KeyF14 Key = win.VK_F14
KeyF15 Key = win.VK_F15
KeyF16 Key = win.VK_F16
KeyF17 Key = win.VK_F17
KeyF18 Key = win.VK_F18
KeyF19 Key = win.VK_F19
KeyF20 Key = win.VK_F20
KeyF21 Key = win.VK_F21
KeyF22 Key = win.VK_F22
KeyF23 Key = win.VK_F23
KeyF24 Key = win.VK_F24
KeyNumlock Key = win.VK_NUMLOCK
KeyScroll Key = win.VK_SCROLL
KeyLShift Key = win.VK_LSHIFT
KeyRShift Key = win.VK_RSHIFT
KeyLControl Key = win.VK_LCONTROL
KeyRControl Key = win.VK_RCONTROL
KeyLAlt Key = win.VK_LMENU
KeyLMenu Key = win.VK_LMENU
KeyRAlt Key = win.VK_RMENU
KeyRMenu Key = win.VK_RMENU
KeyBrowserBack Key = win.VK_BROWSER_BACK
KeyBrowserForward Key = win.VK_BROWSER_FORWARD
KeyBrowserRefresh Key = win.VK_BROWSER_REFRESH
KeyBrowserStop Key = win.VK_BROWSER_STOP
KeyBrowserSearch Key = win.VK_BROWSER_SEARCH
KeyBrowserFavorites Key = win.VK_BROWSER_FAVORITES
KeyBrowserHome Key = win.VK_BROWSER_HOME
KeyVolumeMute Key = win.VK_VOLUME_MUTE
KeyVolumeDown Key = win.VK_VOLUME_DOWN
KeyVolumeUp Key = win.VK_VOLUME_UP
KeyMediaNextTrack Key = win.VK_MEDIA_NEXT_TRACK
KeyMediaPrevTrack Key = win.VK_MEDIA_PREV_TRACK
KeyMediaStop Key = win.VK_MEDIA_STOP
KeyMediaPlayPause Key = win.VK_MEDIA_PLAY_PAUSE
KeyLaunchMail Key = win.VK_LAUNCH_MAIL
KeyLaunchMediaSelect Key = win.VK_LAUNCH_MEDIA_SELECT
KeyLaunchApp1 Key = win.VK_LAUNCH_APP1
KeyLaunchApp2 Key = win.VK_LAUNCH_APP2
KeyOEM1 Key = win.VK_OEM_1
KeyOEMPlus Key = win.VK_OEM_PLUS
KeyOEMComma Key = win.VK_OEM_COMMA
KeyOEMMinus Key = win.VK_OEM_MINUS
KeyOEMPeriod Key = win.VK_OEM_PERIOD
KeyOEM2 Key = win.VK_OEM_2
KeyOEM3 Key = win.VK_OEM_3
KeyOEM4 Key = win.VK_OEM_4
KeyOEM5 Key = win.VK_OEM_5
KeyOEM6 Key = win.VK_OEM_6
KeyOEM7 Key = win.VK_OEM_7
KeyOEM8 Key = win.VK_OEM_8
KeyOEM102 Key = win.VK_OEM_102
KeyProcessKey Key = win.VK_PROCESSKEY
KeyPacket Key = win.VK_PACKET
KeyAttn Key = win.VK_ATTN
KeyCRSel Key = win.VK_CRSEL
KeyEXSel Key = win.VK_EXSEL
KeyErEOF Key = win.VK_EREOF
KeyPlay Key = win.VK_PLAY
KeyZoom Key = win.VK_ZOOM
KeyNoName Key = win.VK_NONAME
KeyPA1 Key = win.VK_PA1
KeyOEMClear Key = win.VK_OEM_CLEAR
)
type Modifiers byte
func (m Modifiers) String() string {
return modifiers2string[m]
}
var modifiers2string = map[Modifiers]string{
ModShift: "Shift",
ModControl: "Ctrl",
ModControl | ModShift: "Ctrl+Shift",
ModAlt: "Alt",
ModAlt | ModShift: "Alt+Shift",
ModAlt | ModControl | ModShift: "Alt+Ctrl+Shift",
}
const (
ModShift Modifiers = 1 << iota
ModControl
ModAlt
)
func ModifiersDown() Modifiers {
var m Modifiers
if ShiftDown() {
m |= ModShift
}
if ControlDown() {
m |= ModControl
}
if AltDown() {
m |= ModAlt
}
return m
}
type Shortcut struct {
Modifiers Modifiers
Key Key
}
func (s Shortcut) String() string {
m := s.Modifiers.String()
if m == "" {
return s.Key.String()
}
b := new(bytes.Buffer)
b.WriteString(m)
b.WriteRune('+')
b.WriteString(s.Key.String())
return b.String()
}
func AltDown() bool {
return win.GetKeyState(int32(KeyAlt))>>15 != 0
}
func ControlDown() bool {
return win.GetKeyState(int32(KeyControl))>>15 != 0
}
func ShiftDown() bool {
return win.GetKeyState(int32(KeyShift))>>15 != 0
}本文分享自微信公众号 - Golang语言社区（Golangweb）
原文出处及转载信息见文内详细说明，如有侵权，请联系 yunjia_community@tencent.com 删除。
原始发表时间：2016-04-28
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