//go:build windows package win import ( "syscall" "unsafe" "golang.org/x/sys/windows" ) const ( // Button IDs IDOK = 1 IDCANCEL = 2 IDABORT = 3 IDRETRY = 4 IDIGNORE = 5 IDYES = 6 IDNO = 7 // MessageBox types MB_OK = windows.MB_OK MB_OKCANCEL = windows.MB_OKCANCEL MB_ABORTRETRYIGNORE = windows.MB_ABORTRETRYIGNORE MB_YESNOCANCEL = windows.MB_YESNOCANCEL MB_YESNO = windows.MB_YESNO MB_RETRYCANCEL = windows.MB_RETRYCANCEL MB_CANCELTRYCONTINUE = windows.MB_CANCELTRYCONTINUE MB_ICONERROR = windows.MB_ICONERROR MB_ICONQUESTION = windows.MB_ICONQUESTION MB_ICONWARNING = windows.MB_ICONWARNING MB_ICONINFORMATION = windows.MB_ICONINFORMATION MB_DEFBUTTON1 = windows.MB_DEFBUTTON1 MB_DEFBUTTON2 = windows.MB_DEFBUTTON2 MB_DEFBUTTON3 = windows.MB_DEFBUTTON3 // Window messages WM_DESTROY = 0x0002 WM_CLOSE = 0x0010 WM_SETFONT = 0x0030 WM_SETICON = 0x0080 WM_NCCREATE = 0x0081 WM_NCDESTROY = 0x0082 WM_INITDIALOG = 0x0110 WM_COMMAND = 0x0111 WM_SYSCOMMAND = 0x0112 WM_DPICHANGED = 0x02e0 WM_USER = 0x0400 EM_SETSEL = 0x00b1 LB_ADDSTRING = 0x0180 LB_GETCURSEL = 0x0188 LB_GETSELCOUNT = 0x0190 LB_GETSELITEMS = 0x0191 MCM_GETCURSEL = 0x1001 MCM_SETCURSEL = 0x1002 PBM_SETPOS = WM_USER + 2 PBM_SETRANGE32 = WM_USER + 6 PBM_SETMARQUEE = WM_USER + 10 STM_SETICON = 0x0170 // CreateWindow CW_USEDEFAULT = 0x80000000 // Window classes PROGRESS_CLASS = "msctls_progress32" MONTHCAL_CLASS = "SysMonthCal32" // Window styles WS_OVERLAPPED = 0x00000000 WS_TILED = 0x00000000 WS_MAXIMIZEBOX = 0x00010000 WS_TABSTOP = 0x00010000 WS_GROUP = 0x00020000 WS_MINIMIZEBOX = 0x00020000 WS_SIZEBOX = 0x00040000 WS_THICKFRAME = 0x00040000 WS_SYSMENU = 0x00080000 WS_HSCROLL = 0x00100000 WS_VSCROLL = 0x00200000 WS_DLGFRAME = 0x00400000 WS_BORDER = 0x00800000 WS_CAPTION = 0x00c00000 WS_MAXIMIZE = 0x01000000 WS_CLIPCHILDREN = 0x02000000 WS_CLIPSIBLINGS = 0x04000000 WS_DISABLED = 0x08000000 WS_VISIBLE = 0x10000000 WS_ICONIC = 0x20000000 WS_MINIMIZE = 0x20000000 WS_CHILD = 0x40000000 WS_CHILDWINDOW = 0x40000000 WS_POPUP = 0x80000000 WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX WS_TILEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX // Extended window styles WS_EX_LEFT = 0x00000000 WS_EX_LTRREADING = 0x00000000 WS_EX_RIGHTSCROLLBAR = 0x00000000 WS_EX_DLGMODALFRAME = 0x00000001 WS_EX_NOPARENTNOTIFY = 0x00000004 WS_EX_TOPMOST = 0x00000008 WS_EX_ACCEPTFILES = 0x00000010 WS_EX_TRANSPARENT = 0x00000020 WS_EX_MDICHILD = 0x00000040 WS_EX_TOOLWINDOW = 0x00000080 WS_EX_WINDOWEDGE = 0x00000100 WS_EX_CLIENTEDGE = 0x00000200 WS_EX_CONTEXTHELP = 0x00000400 WS_EX_RIGHT = 0x00001000 WS_EX_RTLREADING = 0x00002000 WS_EX_LEFTSCROLLBAR = 0x00004000 WS_EX_CONTROLPARENT = 0x00010000 WS_EX_STATICEDGE = 0x00020000 WS_EX_APPWINDOW = 0x00040000 WS_EX_LAYERED = 0x00080000 WS_EX_NOINHERITLAYOUT = 0x00100000 WS_EX_NOREDIRECTIONBITMAP = 0x00200000 WS_EX_LAYOUTRTL = 0x00400000 WS_EX_COMPOSITED = 0x02000000 WS_EX_NOACTIVATE = 0x08000000 WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST // Button styles BS_DEFPUSHBUTTON = 0x0001 // Static control styles SS_NOPREFIX = 0x0080 SS_EDITCONTROL = 0x2000 SS_WORDELLIPSIS = 0xc000 // Edic control styles ES_PASSWORD = 0x0020 ES_AUTOHSCROLL = 0x0080 // List box control styles LBS_EXTENDEDSEL = 0x0800 // Month calendar control styles MCS_NOTODAY = 0x0010 // Progress bar control styles PBS_SMOOTH = 0x0001 PBS_MARQUEE = 0x0008 // ShowWindow command SW_HIDE = 0 SW_NORMAL = 1 SW_SHOWNORMAL = 1 SW_SHOWMINIMIZED = 2 SW_SHOWMAXIMIZED = 3 SW_MAXIMIZE = 3 SW_SHOWNOACTIVATE = 4 SW_SHOW = 5 SW_MINIMIZE = 6 SW_SHOWMINNOACTIVE = 7 SW_SHOWNA = 8 SW_RESTORE = 9 SW_SHOWDEFAULT = 10 SW_FORCEMINIMIZE = 11 // SetWindowPos flags SWP_NOSIZE = 0x0001 SWP_NOMOVE = 0x0002 SWP_NOZORDER = 0x0004 SWP_NOREDRAW = 0x0008 SWP_NOACTIVATE = 0x0010 SWP_DRAWFRAME = 0x0020 SWP_FRAMECHANGED = 0x0020 SWP_SHOWWINDOW = 0x0040 SWP_HIDEWINDOW = 0x0080 SWP_NOCOPYBITS = 0x0100 SWP_NOREPOSITION = 0x0200 SWP_NOOWNERZORDER = 0x0200 SWP_NOSENDCHANGING = 0x0400 SWP_DEFERERASE = 0x2000 SWP_ASYNCWINDOWPOS = 0x4000 // Get/SetWindowLong ids GWL_WNDPROC = -4 GWL_HINSTANCE = -6 GWL_ID = -12 GWL_STYLE = -16 GWL_EXSTYLE = -20 GWL_USERDATA = -21 // Get/SetSystemMetrics ids SM_CXSCREEN = 0 SM_CYSCREEN = 1 // SystemParametersInfo ids SPI_GETNONCLIENTMETRICS = 0x29 // WM_SYSCOMMAND wParam SC_SIZE = 0xf000 SC_MOVE = 0xf010 SC_MINIMIZE = 0xf020 SC_MAXIMIZE = 0xf030 SC_NEXTWINDOW = 0xf040 SC_PREVWINDOW = 0xf050 SC_CLOSE = 0xf060 SC_VSCROLL = 0xf070 SC_HSCROLL = 0xf080 SC_MOUSEMENU = 0xf090 SC_KEYMENU = 0xf100 SC_RESTORE = 0xf120 SC_TASKLIST = 0xf130 SC_SCREENSAVE = 0xf140 SC_HOTKEY = 0xf150 SC_DEFAULT = 0xf160 SC_MONITORPOWER = 0xf170 SC_CONTEXTHELP = 0xf180 USER_DEFAULT_SCREEN_DPI = 96 DPI_AWARENESS_CONTEXT_UNAWARE = ^uintptr(1) + 1 DPI_AWARENESS_CONTEXT_SYSTEM_AWARE = ^uintptr(2) + 1 DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE = ^uintptr(3) + 1 DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 = ^uintptr(4) + 1 DPI_AWARENESS_CONTEXT_UNAWARE_GDISCALED = ^uintptr(5) + 1 IMAGE_BITMAP = 0 IMAGE_ICON = 1 IMAGE_CURSOR = 2 // LoadResource (image/icon) flags LR_DEFAULTCOLOR = 0x00000000 LR_MONOCHROME = 0x00000001 LR_LOADFROMFILE = 0x00000010 LR_LOADTRANSPARENT = 0x00000020 LR_DEFAULTSIZE = 0x00000040 LR_VGACOLOR = 0x00000080 LR_LOADMAP3DCOLORS = 0x00001000 LR_CREATEDIBSECTION = 0x00002000 LR_SHARED = 0x00008000 ) func MessageBox(hwnd HWND, text *uint16, caption *uint16, boxtype uint32) (ret int32, err error) { return windows.MessageBox(hwnd, text, caption, boxtype) } func GetWindowThreadProcessId(hwnd HWND, pid *uint32) (tid uint32, err error) { return windows.GetWindowThreadProcessId(hwnd, pid) } func SendMessagePointer(wnd HWND, msg uint32, wparam uintptr, lparam unsafe.Pointer) (ret uintptr) { r0, _, _ := syscall.Syscall6(procSendMessageW.Addr(), 4, uintptr(wnd), uintptr(msg), uintptr(wparam), uintptr(lparam), 0, 0) ret = uintptr(r0) return } func GetDpiForWindow(wnd HWND) (ret int, err error) { if err := procGetDpiForWindow.Find(); err != nil { return 0, err } return getDpiForWindow(wnd), nil } func SetThreadDpiAwarenessContext(dpiContext uintptr) (ret uintptr, err error) { if err := procSetThreadDpiAwarenessContext.Find(); err != nil { return 0, err } return setThreadDpiAwarenessContext(dpiContext), nil } // https://docs.microsoft.com/en-us/windows/win32/winmsg/using-messages-and-message-queues func MessageLoop(wnd HWND) error { getMessage := procGetMessageW.Addr() translateMessage := procTranslateMessage.Addr() dispatchMessage := procDispatchMessageW.Addr() isDialogMessage := procIsDialogMessageW.Addr() for { var msg MSG s, _, err := syscall.Syscall6(getMessage, 4, uintptr(unsafe.Pointer(&msg)), 0, 0, 0, 0, 0) if int32(s) == -1 { return err } if s == 0 { return nil } s, _, _ = syscall.Syscall(isDialogMessage, 2, uintptr(wnd), uintptr(unsafe.Pointer(&msg)), 0) if s == 0 { syscall.Syscall(translateMessage, 1, uintptr(unsafe.Pointer(&msg)), 0, 0) syscall.Syscall(dispatchMessage, 1, uintptr(unsafe.Pointer(&msg)), 0, 0) } } } // https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-msg type MSG struct { Owner syscall.Handle Message uint32 WParam uintptr LParam uintptr Time uint32 Pt POINT private uint32 } // https://docs.microsoft.com/en-us/windows/win32/api/windef/ns-windef-point type POINT struct { X, Y int32 } // https://docs.microsoft.com/en-us/windows/win32/api/windef/ns-windef-rect type RECT struct { Left int32 Top int32 Right int32 Bottom int32 } // https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-wndclassexw type WNDCLASSEX struct { Size uint32 Style uint32 WndProc uintptr ClsExtra int32 WndExtra int32 Instance Handle Icon Handle Cursor Handle Background Handle MenuName *uint16 ClassName *uint16 IconSm Handle } // https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-nonclientmetricsw type NONCLIENTMETRICS struct { Size uint32 BorderWidth int32 ScrollWidth int32 ScrollHeight int32 CaptionWidth int32 CaptionHeight int32 CaptionFont LOGFONT SmCaptionWidth int32 SmCaptionHeight int32 SmCaptionFont LOGFONT MenuWidth int32 MenuHeight int32 MenuFont LOGFONT StatusFont LOGFONT MessageFont LOGFONT } //sys CreateIconFromResource(resBits []byte, icon bool, ver uint32) (ret Handle, err error) = user32.CreateIconFromResource //sys CreateWindowEx(exStyle uint32, className *uint16, windowName *uint16, style uint32, x int, y int, width int, height int, parent HWND, menu Handle, instance Handle, param unsafe.Pointer) (ret HWND, err error) = user32.CreateWindowExW //sys DestroyIcon(icon Handle) (err error) = user32.DestroyIcon //sys DestroyWindow(wnd HWND) (err error) = user32.DestroyWindow //sys DispatchMessage(msg *MSG) (ret uintptr) = user32.DispatchMessageW //sys DefWindowProc(wnd HWND, msg uint32, wparam uintptr, lparam unsafe.Pointer) (ret uintptr) = user32.DefWindowProcW //sys EnableWindow(wnd HWND, enable bool) (ok bool) = user32.EnableWindow //sys EnumChildWindows(parent HWND, enumFunc uintptr, lparam unsafe.Pointer) = user32.EnumChildWindows //sys EnumWindows(enumFunc uintptr, lparam unsafe.Pointer) (err error) = user32.EnumChildWindows //sys GetDlgCtrlID(wnd HWND) (ret int) = user32.GetDlgCtrlID //sys getDpiForWindow(wnd HWND) (ret int) = user32.GetDpiForWindow //sys GetMessage(msg *MSG, wnd HWND, msgFilterMin uint32, msgFilterMax uint32) (ret uintptr) = user32.GetMessageW //sys GetSystemMetrics(index int) (ret int) = user32.GetSystemMetrics //sys GetWindowDC(wnd HWND) (ret Handle) = user32.GetWindowDC //sys GetWindowRect(wnd HWND, cmdShow *RECT) (err error) = user32.GetWindowRect //sys GetWindowText(wnd HWND, str *uint16, maxCount int) (ret int, err error) = user32.GetWindowTextW //sys GetWindowTextLength(wnd HWND) (ret int, err error) = user32.GetWindowTextLengthW //sys IsDialogMessage(wnd HWND, msg *MSG) (ok bool) = user32.IsDialogMessageW //sys LoadIcon(instance Handle, resource uintptr) (ret Handle, err error) = user32.LoadIconW //sys LoadImage(instance Handle, name *uint16, typ int, cx int, cy int, load int) (ret Handle, err error) = user32.LoadImageW //sys PostQuitMessage(exitCode int) = user32.PostQuitMessage //sys RegisterClassEx(cls *WNDCLASSEX) (err error) = user32.RegisterClassExW //sys ReleaseDC(wnd HWND, dc Handle) (ok bool) = user32.ReleaseDC //sys SendMessage(wnd HWND, msg uint32, wparam uintptr, lparam uintptr) (ret uintptr) = user32.SendMessageW //sys SetFocus(wnd HWND) (ret HWND, err error) = user32.SetFocus //sys SetForegroundWindow(wnd HWND) (ok bool) = user32.SetForegroundWindow //sys setThreadDpiAwarenessContext(dpiContext uintptr) (ret uintptr) = user32.SetThreadDpiAwarenessContext //sys SetWindowLong(wnd HWND, index int, newLong int) (ret int, err error) = user32.SetWindowLongW //sys SetWindowPos(wnd HWND, wndInsertAfter HWND, x int, y int, cx int, cy int, flags int) (err error) = user32.SetWindowPos //sys SetWindowText(wnd HWND, text *uint16) (err error) = user32.SetWindowTextW //sys ShowWindow(wnd HWND, cmdShow int) (ok bool) = user32.ShowWindow //sys SystemParametersInfo(action int, uiParam uintptr, pvParam unsafe.Pointer, winIni int) (err error) = user32.SystemParametersInfoW //sys TranslateMessage(msg *MSG) (ok bool) = user32.TranslateMessage //sys UnregisterClass(className *uint16, instance Handle) (err error) = user32.UnregisterClassW