// 8 february 2014 package ui import ( // "syscall" "unsafe" ) // Window styles. const ( _WS_BORDER = 0x00800000 _WS_CAPTION = 0x00C00000 _WS_CHILD = 0x40000000 _WS_CHILDWINDOW = 0x40000000 _WS_CLIPCHILDREN = 0x02000000 _WS_CLIPSIBLINGS = 0x04000000 _WS_DISABLED = 0x08000000 _WS_DLGFRAME = 0x00400000 _WS_GROUP = 0x00020000 _WS_HSCROLL = 0x00100000 _WS_ICONIC = 0x20000000 _WS_MAXIMIZE = 0x01000000 _WS_MAXIMIZEBOX = 0x00010000 _WS_MINIMIZE = 0x20000000 _WS_MINIMIZEBOX = 0x00020000 _WS_OVERLAPPED = 0x00000000 _WS_OVERLAPPEDWINDOW = (_WS_OVERLAPPED | _WS_CAPTION | _WS_SYSMENU | _WS_THICKFRAME | _WS_MINIMIZEBOX | _WS_MAXIMIZEBOX) _WS_POPUP = 0x80000000 _WS_POPUPWINDOW = (_WS_POPUP | _WS_BORDER | _WS_SYSMENU) _WS_SIZEBOX = 0x00040000 _WS_SYSMENU = 0x00080000 _WS_TABSTOP = 0x00010000 _WS_THICKFRAME = 0x00040000 _WS_TILED = 0x00000000 _WS_TILEDWINDOW = (_WS_OVERLAPPED | _WS_CAPTION | _WS_SYSMENU | _WS_THICKFRAME | _WS_MINIMIZEBOX | _WS_MAXIMIZEBOX) _WS_VISIBLE = 0x10000000 _WS_VSCROLL = 0x00200000 ) // Extended window styles. const ( _WS_EX_ACCEPTFILES = 0x00000010 _WS_EX_APPWINDOW = 0x00040000 _WS_EX_CLIENTEDGE = 0x00000200 _WS_EX_COMPOSITED = 0x02000000 _WS_EX_CONTEXTHELP = 0x00000400 _WS_EX_CONTROLPARENT = 0x00010000 _WS_EX_DLGMODALFRAME = 0x00000001 _WS_EX_LAYERED = 0x00080000 _WS_EX_LAYOUTRTL = 0x00400000 _WS_EX_LEFT = 0x00000000 _WS_EX_LEFTSCROLLBAR = 0x00004000 _WS_EX_LTRREADING = 0x00000000 _WS_EX_MDICHILD = 0x00000040 _WS_EX_NOACTIVATE = 0x08000000 _WS_EX_NOINHERITLAYOUT = 0x00100000 _WS_EX_NOPARENTNOTIFY = 0x00000004 _WS_EX_OVERLAPPEDWINDOW = (_WS_EX_WINDOWEDGE | _WS_EX_CLIENTEDGE) _WS_EX_PALETTEWINDOW = (_WS_EX_WINDOWEDGE | _WS_EX_TOOLWINDOW | _WS_EX_TOPMOST) _WS_EX_RIGHT = 0x00001000 _WS_EX_RIGHTSCROLLBAR = 0x00000000 _WS_EX_RTLREADING = 0x00002000 _WS_EX_STATICEDGE = 0x00020000 _WS_EX_TOOLWINDOW = 0x00000080 _WS_EX_TOPMOST = 0x00000008 _WS_EX_TRANSPARENT = 0x00000020 _WS_EX_WINDOWEDGE = 0x00000100 ) // bizarrely, this value is given on the page for CreateMDIWindow, but not CreateWindow or CreateWindowEx // I do it this way because Go won't let me shove the exact value into an int var ( __CW_USEDEFAULT uint = 0x80000000 _CW_USEDEFAULT = int(__CW_USEDEFAULT) ) // GetSysColor values. These can be cast to HBRUSH (after adding 1) for WNDCLASS as well. const ( _COLOR_3DDKSHADOW = 21 _COLOR_3DFACE = 15 _COLOR_3DHIGHLIGHT = 20 _COLOR_3DHILIGHT = 20 _COLOR_3DLIGHT = 22 _COLOR_3DSHADOW = 16 _COLOR_ACTIVEBORDER = 10 _COLOR_ACTIVECAPTION = 2 _COLOR_APPWORKSPACE = 12 _COLOR_BACKGROUND = 1 _COLOR_BTNFACE = 15 _COLOR_BTNHIGHLIGHT = 20 _COLOR_BTNHILIGHT = 20 _COLOR_BTNSHADOW = 16 _COLOR_BTNTEXT = 18 _COLOR_CAPTIONTEXT = 9 _COLOR_DESKTOP = 1 _COLOR_GRADIENTACTIVECAPTION = 27 _COLOR_GRADIENTINACTIVECAPTION = 28 _COLOR_GRAYTEXT = 17 _COLOR_HIGHLIGHT = 13 _COLOR_HIGHLIGHTTEXT = 14 _COLOR_HOTLIGHT = 26 _COLOR_INACTIVEBORDER = 11 _COLOR_INACTIVECAPTION = 3 _COLOR_INACTIVECAPTIONTEXT = 19 _COLOR_INFOBK = 24 _COLOR_INFOTEXT = 23 _COLOR_MENU = 4 _COLOR_MENUHILIGHT = 29 _COLOR_MENUBAR = 30 _COLOR_MENUTEXT = 7 _COLOR_SCROLLBAR = 0 _COLOR_WINDOW = 5 _COLOR_WINDOWFRAME = 6 _COLOR_WINDOWTEXT = 8 ) // SetWindowPos hWndInsertAfter values. const ( _HWND_BOTTOM = _HWND(1) _HWND_TOP = _HWND(0) ) // SetWindowPos hWndInsertAfter values that Go won't allow as constants. var ( __HWND_NOTOPMOST = -2 _HWND_NOTOPMOST = _HWND(__HWND_NOTOPMOST) __HWND_TOPMOST = -1 _HWND_TOPMOST = _HWND(__HWND_TOPMOST) ) // SetWindowPos uFlags values. const ( _SWP_DRAWFRAME = 0x0020 _SWP_FRAMECHANGED = 0x0020 _SWP_HIDEWINDOW = 0x0080 _SWP_NOACTIVATE = 0x0010 _SWP_NOCOPYBITS = 0x0100 _SWP_NOMOVE = 0x0002 _SWP_NOOWNERZORDER = 0x0200 _SWP_NOREDRAW = 0x0008 _SWP_NOREPOSITION = 0x0200 _SWP_NOSENDCHANGING = 0x0400 _SWP_NOSIZE = 0x0001 _SWP_NOZORDER = 0x0004 _SWP_SHOWWINDOW = 0x0040 _SWP_ASYNCWINDOWPOS = 0x4000 _SWP_DEFERERASE = 0x2000 ) // ShowWindow settings. const ( _SW_FORCEMINIMIZE = 11 _SW_HIDE = 0 _SW_MAXIMIZE = 3 _SW_MINIMIZE = 6 _SW_RESTORE = 9 _SW_SHOW = 5 _SW_SHOWDEFAULT = 10 _SW_SHOWMAXIMIZED = 3 _SW_SHOWMINIMIZED = 2 _SW_SHOWMINNOACTIVE = 7 _SW_SHOWNA = 8 _SW_SHOWNOACTIVATE = 4 _SW_SHOWNORMAL = 1 ) var ( _createWindowEx = user32.NewProc("CreateWindowExW") _getClientRect = user32.NewProc("GetClientRect") _moveWindow = user32.NewProc("MoveWindow") _setWindowLong = user32.NewProc("SetWindowLongW") _setWindowPos = user32.NewProc("SetWindowPos") _setWindowText = user32.NewProc("SetWindowTextW") _showWindow = user32.NewProc("ShowWindow") ) // WM_SETICON and WM_GETICON values. const ( _ICON_BIG = 1 _ICON_SMALL = 0 _ICON_SMALL2 = 2 // WM_GETICON only? ) // Window messages. const ( _MN_GETHMENU = 0x01E1 _WM_ERASEBKGND = 0x0014 _WM_GETFONT = 0x0031 _WM_GETTEXT = 0x000D _WM_GETTEXTLENGTH = 0x000E _WM_SETFONT = 0x0030 _WM_SETICON = 0x0080 _WM_SETTEXT = 0x000C ) // WM_INPUTLANGCHANGEREQUEST values. const ( _INPUTLANGCHANGE_BACKWARD = 0x0004 _INPUTLANGCHANGE_FORWARD = 0x0002 _INPUTLANGCHANGE_SYSCHARSET = 0x0001 ) // WM_NCCALCSIZE return values. const ( _WVR_ALIGNTOP = 0x0010 _WVR_ALIGNRIGHT = 0x0080 _WVR_ALIGNLEFT = 0x0020 _WVR_ALIGNBOTTOM = 0x0040 _WVR_HREDRAW = 0x0100 _WVR_VREDRAW = 0x0200 _WVR_REDRAW = 0x0300 _WVR_VALIDRECTS = 0x0400 ) // WM_SHOWWINDOW reasons (lParam). const ( _SW_OTHERUNZOOM = 4 _SW_OTHERZOOM = 2 _SW_PARENTCLOSING = 1 _SW_PARENTOPENING = 3 ) // WM_SIZE values. const ( _SIZE_MAXHIDE = 4 _SIZE_MAXIMIZED = 2 _SIZE_MAXSHOW = 3 _SIZE_MINIMIZED = 1 _SIZE_RESTORED = 0 ) // WM_SIZING edge values (wParam). const ( _WMSZ_BOTTOM = 6 _WMSZ_BOTTOMLEFT = 7 _WMSZ_BOTTOMRIGHT = 8 _WMSZ_LEFT = 1 _WMSZ_RIGHT = 2 _WMSZ_TOP = 3 _WMSZ_TOPLEFT = 4 _WMSZ_TOPRIGHT = 5 ) // WM_STYLECHANGED and WM_STYLECHANGING values (wParam). var ( // var because Go won't let me cast a negative const to a uintptr _GWL_EXSTYLE = -20 _GWL_STYLE = -16 ) // Window notifications. const ( _WM_ACTIVATEAPP = 0x001C _WM_CANCELMODE = 0x001F _WM_CHILDACTIVATE = 0x0022 _WM_CLOSE = 0x0010 _WM_COMPACTING = 0x0041 _WM_CREATE = 0x0001 _WM_DESTROY = 0x0002 // _WM_DPICHANGED = 0x02E0 // Windows 8.1 and newer only _WM_ENABLE = 0x000A _WM_ENTERSIZEMOVE = 0x0231 _WM_EXITSIZEMOVE = 0x0232 _WM_GETICON = 0x007F _WM_GETMINMAXINFO = 0x0024 _WM_INPUTLANGCHANGE = 0x0051 _WM_INPUTLANGCHANGEREQUEST = 0x0050 _WM_MOVE = 0x0003 _WM_MOVING = 0x0216 _WM_NCACTIVATE = 0x0086 _WM_NCCALCSIZE = 0x0083 _WM_NCCREATE = 0x0081 _WM_NCDESTROY = 0x0082 _WM_NULL = 0x0000 _WM_QUERYDRAGICON = 0x0037 _WM_QUERYOPEN = 0x0013 _WM_QUIT = 0x0012 _WM_SHOWWINDOW = 0x0018 _WM_SIZE = 0x0005 _WM_SIZING = 0x0214 _WM_STYLECHANGED = 0x007D _WM_STYLECHANGING = 0x007C _WM_THEMECHANGED = 0x031A // _WM_USERCHANGED = 0x0054 // Windows XP only: [Note This message is not supported as of Windows Vista.; also listed as not supported by server Windows] _WM_WINDOWPOSCHANGED = 0x0047 _WM_WINDOWPOSCHANGING = 0x0046 ) type _MINMAXINFO struct { PtReserved _POINT PtMaxSize _POINT PtMaxPosition _POINT PtMinTrackSize _POINT PtMaxTrackSize _POINT } func (l _LPARAM) MINMAXINFO() *_MINMAXINFO { return (*_MINMAXINFO)(unsafe.Pointer(l)) }