Merge branch 'dlgs-import' into dev
This commit is contained in:
Nuno Cruces
commit
5434a7f7f9
1 changed files with 598 additions and 0 deletions
598
dlgs_windows.go
Normal file
598
dlgs_windows.go
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@ -0,0 +1,598 @@
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// +build windows,!linux,!darwin,!js
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package dlgs
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import (
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"strings"
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"syscall"
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"unicode/utf16"
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"unsafe"
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)
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var (
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user32 = syscall.NewLazyDLL("user32.dll")
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gdi32 = syscall.NewLazyDLL("gdi32.dll")
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comdlg32 = syscall.NewLazyDLL("comdlg32.dll")
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shell32 = syscall.NewLazyDLL("shell32.dll")
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kernel32 = syscall.NewLazyDLL("kernel32.dll")
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messageBoxW = user32.NewProc("MessageBoxW")
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createWindowExW = user32.NewProc("CreateWindowExW")
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defWindowProcW = user32.NewProc("DefWindowProcW")
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destroyWindowW = user32.NewProc("DestroyWindow")
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dispatchMessageW = user32.NewProc("DispatchMessageW")
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getMessageW = user32.NewProc("GetMessageW")
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sendMessageW = user32.NewProc("SendMessageW")
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postQuitMessageW = user32.NewProc("PostQuitMessage")
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registerClassExW = user32.NewProc("RegisterClassExW")
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unregisterClassW = user32.NewProc("UnregisterClassW")
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translateMessageW = user32.NewProc("TranslateMessage")
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setWindowTextW = user32.NewProc("SetWindowTextW")
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getWindowTextLengthW = user32.NewProc("GetWindowTextLengthW")
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getWindowTextW = user32.NewProc("GetWindowTextW")
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getWindowLongW = user32.NewProc("GetWindowLongW")
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setWindowLongW = user32.NewProc("SetWindowLongW")
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getWindowRectW = user32.NewProc("GetWindowRect")
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setWindowPosW = user32.NewProc("SetWindowPos")
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showWindowW = user32.NewProc("ShowWindow")
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updateWindowW = user32.NewProc("UpdateWindow")
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isDialogMessageW = user32.NewProc("IsDialogMessageW")
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getSystemMetricsW = user32.NewProc("GetSystemMetrics")
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systemParametersInfoW = user32.NewProc("SystemParametersInfoW")
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createFontIndirectW = gdi32.NewProc("CreateFontIndirectW")
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getOpenFileNameW = comdlg32.NewProc("GetOpenFileNameW")
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chooseColorW = comdlg32.NewProc("ChooseColorW")
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shBrowseForFolderW = shell32.NewProc("SHBrowseForFolderW")
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shGetPathFromIDListW = shell32.NewProc("SHGetPathFromIDListW")
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getModuleHandleW = kernel32.NewProc("GetModuleHandleW")
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)
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const (
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mbOk = 0x00000000
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mbYesNo = 0x00000004
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mbDefaultIcon1 = 0x00000000
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mbDefaultIcon2 = 0x00000100
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mbIconInfo = 0x00000040
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mbIconWarning = 0x00000030
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mbIconError = 0x00000010
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mbIconQuestion = 0x00000020
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idOk = 1
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idYes = 6
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swShow = 5
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swShowNormal = 1
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swUseDefault = 0x80000000
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swpNoZOrder = 0x0004
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swpNoSize = 0x0001
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smCxScreen = 0
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smCyScreen = 1
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wsThickFrame = 0x00040000
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wsSysMenu = 0x00080000
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wsBorder = 0x00800000
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wsCaption = 0x00C00000
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wsChild = 0x40000000
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wsVisible = 0x10000000
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wsMaximizeBox = 0x00010000
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wsMinimizeBox = 0x00020000
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wsTabStop = 0x00010000
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wsGroup = 0x00020000
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wsOverlappedWindow = 0x00CF0000
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wsExClientEdge = 0x00000200
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wmCreate = 0x0001
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wmDestroy = 0x0002
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wmClose = 0x0010
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wmCommand = 0x0111
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wmSetFont = 0x0030
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wmKeydown = 0x0100
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wmInitDialog = 0x0110
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ofnAllowMultiSelect = 0x00000200
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ofnExplorer = 0x00080000
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ofnFileMustExist = 0x00001000
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ofnHideReadOnly = 0x00000004
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ofnOverwriteprompt = 0x00000002
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esPassword = 0x0020
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esAutoVScroll = 0x0040
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esAutoHScroll = 0x0080
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bifEditBox = 0x00000010
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bifNewDialogStyle = 0x00000040
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ccRgbInit = 0x00000001
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ccFullOpen = 0x00000002
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lbAddString = 0x0180
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lbGetCurSel = 0x0188
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lbGetSelCount = 0x0190
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lbGetSelItems = 0x0191
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lbGetItemData = 0x0199
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lbSetItemData = 0x019A
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lbSeparator = "LB_SEP"
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lbsExtendedsel = 0x0800
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dtsUpdown = 0x0001
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dtsShowNone = 0x0002
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dtsShortDateFormat = 0x0000
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dtsLongDateFormat = 0x0004
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dtmFirst = 0x1000
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dtmGetSystemTime = dtmFirst + 1
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dtmSetSystemTime = dtmFirst + 2
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gdtError = -1
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gdtValid = 0
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gdtNone = 1
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vkEscape = 0x1B
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enUpdate = 0x0400
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bsPushButton = 0
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colorWindow = 5
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spiGetNonClientMetrics = 0x0029
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gwlStyle = -16
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maxPath = 260
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)
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// wndClassExW https://msdn.microsoft.com/en-us/library/windows/desktop/ms633577.aspx
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type wndClassExW struct {
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size uint32
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style uint32
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wndProc uintptr
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clsExtra int32
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wndExtra int32
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instance syscall.Handle
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icon syscall.Handle
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cursor syscall.Handle
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background syscall.Handle
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menuName *uint16
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className *uint16
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iconSm syscall.Handle
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}
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// msgW https://msdn.microsoft.com/en-us/library/windows/desktop/ms644958.aspx
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type msgW struct {
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hwnd syscall.Handle
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message uint32
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wParam uintptr
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lParam uintptr
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time uint32
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pt pointW
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}
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// nonClientMetricsW https://msdn.microsoft.com/en-us/library/windows/desktop/ff729175.aspx
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type nonClientMetricsW struct {
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cbSize uint32
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iBorderWidth int32
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iScrollWidth int32
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iScrollHeight int32
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iCaptionWidth int32
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iCaptionHeight int32
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lfCaptionFont logfontW
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iSmCaptionWidth int32
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iSmCaptionHeight int32
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lfSmCaptionFont logfontW
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iMenuWidth int32
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iMenuHeight int32
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lfMenuFont logfontW
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lfStatusFont logfontW
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lfMessageFont logfontW
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}
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// logfontW https://msdn.microsoft.com/en-us/library/windows/desktop/dd145037.aspx
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type logfontW struct {
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lfHeight int32
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lfWidth int32
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lfEscapement int32
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lfOrientation int32
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lfWeight int32
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lfItalic byte
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lfUnderline byte
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lfStrikeOut byte
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lfCharSet byte
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lfOutPrecision byte
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lfClipPrecision byte
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lfQuality byte
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lfPitchAndFamily byte
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lfFaceName [32]uint16
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}
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type pointW struct {
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x, y int32
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}
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type rectW struct {
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left int32
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top int32
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right int32
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bottom int32
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}
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// openfilenameW https://msdn.microsoft.com/en-us/library/windows/desktop/ms646839.aspx
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type openfilenameW struct {
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lStructSize uint32
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hwndOwner syscall.Handle
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hInstance syscall.Handle
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lpstrFilter *uint16
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lpstrCustomFilter *uint16
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nMaxCustFilter uint32
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nFilterIndex uint32
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lpstrFile *uint16
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nMaxFile uint32
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lpstrFileTitle *uint16
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nMaxFileTitle uint32
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lpstrInitialDir *uint16
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lpstrTitle *uint16
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flags uint32
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nFileOffset uint16
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nFileExtension uint16
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lpstrDefExt *uint16
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lCustData uintptr
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lpfnHook syscall.Handle
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lpTemplateName *uint16
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pvReserved unsafe.Pointer
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dwReserved uint32
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flagsEx uint32
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}
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// browseinfoW http://msdn.microsoft.com/en-us/library/windows/desktop/bb773205.aspx
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type browseinfoW struct {
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owner syscall.Handle
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root *uint16
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displayName *uint16
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title *uint16
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flags uint32
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callbackFunc uintptr
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lParam uintptr
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image int32
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}
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// choosecolorW https://msdn.microsoft.com/en-us/library/windows/desktop/ms646830.aspx
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type choosecolorW struct {
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lStructSize uint32
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hwndOwner syscall.Handle
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hInstance syscall.Handle
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rgbResult uint32
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lpCustColors *uint32
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flags uint32
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lCustData uintptr
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lpfnHook uintptr
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lpTemplateName *uint16
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}
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// systemtimeW https://msdn.microsoft.com/en-us/library/windows/desktop/ms724950.aspx
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type systemtimeW struct {
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wYear uint16
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wMonth uint16
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wDayOfWeek uint16
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wDay uint16
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wHour uint16
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wMinute uint16
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wSecond uint16
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wMilliseconds uint16
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}
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func messageBox(title, text string, flags int) int {
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ret, _, _ := messageBoxW.Call(0, uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(text))),
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uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(title))), uintptr(uint(flags)))
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return int(ret)
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}
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func getModuleHandle() (syscall.Handle, error) {
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ret, _, err := getModuleHandleW.Call(uintptr(0))
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if ret == 0 {
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return 0, err
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}
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return syscall.Handle(ret), nil
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}
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func createWindow(exStyle uint64, className, windowName string, style uint64, x, y, width, height int64,
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parent, menu, instance syscall.Handle) (syscall.Handle, error) {
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ret, _, err := createWindowExW.Call(uintptr(exStyle), uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(className))),
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uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(windowName))), uintptr(style), uintptr(x), uintptr(y),
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uintptr(width), uintptr(height), uintptr(parent), uintptr(menu), uintptr(instance), uintptr(0))
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if ret == 0 {
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return 0, err
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}
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return syscall.Handle(ret), nil
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}
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func destroyWindow(hwnd syscall.Handle) error {
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ret, _, err := destroyWindowW.Call(uintptr(hwnd))
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if ret == 0 {
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return err
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}
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return nil
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}
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func defWindowProc(hwnd syscall.Handle, msg uint32, wparam, lparam uintptr) uintptr {
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ret, _, _ := defWindowProcW.Call(uintptr(hwnd), uintptr(msg), uintptr(wparam), uintptr(lparam))
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return uintptr(ret)
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}
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func registerClassEx(wcx *wndClassExW) (uint16, error) {
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ret, _, err := registerClassExW.Call(uintptr(unsafe.Pointer(wcx)))
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if ret == 0 {
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return 0, err
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}
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return uint16(ret), nil
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}
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func unregisterClass(className string, instance syscall.Handle) bool {
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ret, _, _ := unregisterClassW.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(className))), uintptr(instance))
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return ret != 0
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}
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func getMessage(msg *msgW, hwnd syscall.Handle, msgFilterMin, msgFilterMax uint32) (bool, error) {
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ret, _, err := getMessageW.Call(uintptr(unsafe.Pointer(msg)), uintptr(hwnd), uintptr(msgFilterMin), uintptr(msgFilterMax))
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if int32(ret) == -1 {
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return false, err
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}
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return int32(ret) != 0, nil
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}
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func sendMessage(hwnd syscall.Handle, msg uint32, wparam, lparam uintptr) uintptr {
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ret, _, _ := sendMessageW.Call(uintptr(hwnd), uintptr(msg), wparam, lparam, 0, 0)
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return ret
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}
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func dispatchMessage(msg *msgW) {
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dispatchMessageW.Call(uintptr(unsafe.Pointer(msg)))
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}
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func postQuitMessage(exitCode int32) {
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postQuitMessageW.Call(uintptr(exitCode))
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}
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func translateMessage(msg *msgW) {
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translateMessageW.Call(uintptr(unsafe.Pointer(msg)))
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}
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|
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func setWindowText(hwnd syscall.Handle, text string) {
|
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setWindowTextW.Call(uintptr(hwnd), uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(text))))
|
||||
}
|
||||
|
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func getWindowTextLength(hwnd syscall.Handle) int {
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ret, _, _ := getWindowTextLengthW.Call(uintptr(hwnd))
|
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return int(ret)
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||||
}
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|
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func getWindowText(hwnd syscall.Handle) string {
|
||||
textLen := getWindowTextLength(hwnd) + 1
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||||
|
||||
buf := make([]uint16, textLen)
|
||||
getWindowTextW.Call(uintptr(hwnd), uintptr(unsafe.Pointer(&buf[0])), uintptr(textLen))
|
||||
|
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return syscall.UTF16ToString(buf)
|
||||
}
|
||||
|
||||
func systemParametersInfo(uiAction, uiParam uint32, pvParam unsafe.Pointer, fWinIni uint32) bool {
|
||||
ret, _, _ := systemParametersInfoW.Call(uintptr(uiAction), uintptr(uiParam), uintptr(pvParam), uintptr(fWinIni), 0, 0)
|
||||
return int32(ret) != 0
|
||||
}
|
||||
|
||||
func createFontIndirect(lplf *logfontW) uintptr {
|
||||
ret, _, _ := createFontIndirectW.Call(uintptr(unsafe.Pointer(lplf)), 0, 0)
|
||||
return uintptr(ret)
|
||||
}
|
||||
|
||||
func getWindowLong(hwnd syscall.Handle, index int32) int32 {
|
||||
ret, _, _ := getWindowLongW.Call(uintptr(hwnd), uintptr(index), 0)
|
||||
return int32(ret)
|
||||
}
|
||||
|
||||
func setWindowLong(hwnd syscall.Handle, index, value int32) int32 {
|
||||
ret, _, _ := setWindowLongW.Call(uintptr(hwnd), uintptr(index), uintptr(value))
|
||||
return int32(ret)
|
||||
}
|
||||
|
||||
func getWindowRect(hwnd syscall.Handle, rect *rectW) bool {
|
||||
ret, _, _ := getWindowRectW.Call(uintptr(hwnd), uintptr(unsafe.Pointer(rect)), 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func setWindowPos(hwnd, hwndInsertAfter syscall.Handle, x, y, width, height int32, flags uint32) bool {
|
||||
ret, _, _ := setWindowPosW.Call(uintptr(hwnd), uintptr(hwndInsertAfter),
|
||||
uintptr(x), uintptr(y), uintptr(width), uintptr(height), uintptr(flags), 0, 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func showWindow(hwnd syscall.Handle, nCmdShow int32) bool {
|
||||
ret, _, _ := showWindowW.Call(uintptr(hwnd), uintptr(nCmdShow), 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func updateWindow(hwnd syscall.Handle) bool {
|
||||
ret, _, _ := updateWindowW.Call(uintptr(hwnd), 0, 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func isDialogMessage(hwnd syscall.Handle, msg *msgW) bool {
|
||||
ret, _, _ := isDialogMessageW.Call(uintptr(hwnd), uintptr(unsafe.Pointer(msg)), 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func getSystemMetrics(nindex int32) int32 {
|
||||
ret, _, _ := getSystemMetricsW.Call(uintptr(nindex), 0, 0)
|
||||
return int32(ret)
|
||||
}
|
||||
|
||||
func getOpenFileName(lpofn *openfilenameW) bool {
|
||||
ret, _, _ := getOpenFileNameW.Call(uintptr(unsafe.Pointer(lpofn)), 0, 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func shBrowseForFolder(lpbi *browseinfoW) uintptr {
|
||||
ret, _, _ := shBrowseForFolderW.Call(uintptr(unsafe.Pointer(lpbi)), 0, 0)
|
||||
return ret
|
||||
}
|
||||
|
||||
func shGetPathFromIDList(pidl uintptr, pszPath *uint16) bool {
|
||||
ret, _, _ := shGetPathFromIDListW.Call(pidl, uintptr(unsafe.Pointer(pszPath)), 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func chooseColor(lpcc *choosecolorW) bool {
|
||||
ret, _, _ := chooseColorW.Call(uintptr(unsafe.Pointer(lpcc)), 0, 0)
|
||||
return ret != 0
|
||||
}
|
||||
|
||||
func centerWindow(hwnd syscall.Handle) {
|
||||
var rc rectW
|
||||
getWindowRect(hwnd, &rc)
|
||||
xPos := (getSystemMetrics(smCxScreen) - (rc.right - rc.left)) / 2
|
||||
yPos := (getSystemMetrics(smCyScreen) - (rc.bottom - rc.top)) / 2
|
||||
setWindowPos(hwnd, 0, xPos, yPos, 0, 0, swpNoZOrder|swpNoSize)
|
||||
}
|
||||
|
||||
func getMessageFont() uintptr {
|
||||
var metrics nonClientMetricsW
|
||||
metrics.cbSize = uint32(unsafe.Sizeof(metrics))
|
||||
systemParametersInfo(spiGetNonClientMetrics, uint32(unsafe.Sizeof(metrics)), unsafe.Pointer(&metrics), 0)
|
||||
return createFontIndirect(&metrics.lfMessageFont)
|
||||
}
|
||||
|
||||
func registerClass(className string, instance syscall.Handle, fn interface{}) error {
|
||||
var wcx wndClassExW
|
||||
wcx.size = uint32(unsafe.Sizeof(wcx))
|
||||
wcx.wndProc = syscall.NewCallback(fn)
|
||||
wcx.instance = instance
|
||||
wcx.background = colorWindow + 1
|
||||
wcx.className = syscall.StringToUTF16Ptr(className)
|
||||
|
||||
_, err := registerClassEx(&wcx)
|
||||
return err
|
||||
}
|
||||
|
||||
func messageLoop(hwnd syscall.Handle) error {
|
||||
for {
|
||||
msg := msgW{}
|
||||
gotMessage, err := getMessage(&msg, 0, 0, 0)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if gotMessage {
|
||||
if !isDialogMessage(hwnd, &msg) {
|
||||
translateMessage(&msg)
|
||||
dispatchMessage(&msg)
|
||||
}
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func utf16PtrFromString(s string) *uint16 {
|
||||
b := utf16.Encode([]rune(s))
|
||||
return &b[0]
|
||||
}
|
||||
|
||||
func stringFromUtf16Ptr(p *uint16) string {
|
||||
b := *(*[maxPath]uint16)(unsafe.Pointer(p))
|
||||
r := utf16.Decode(b[:])
|
||||
return strings.Trim(string(r), "\x00")
|
||||
}
|
||||
|
||||
// editBox displays textedit/inputbox dialog.
|
||||
func editBox(title, text, defaultText, className string, password bool) (string, bool, error) {
|
||||
var out string
|
||||
notCancledOrClosed := true
|
||||
|
||||
var hwndEdit syscall.Handle
|
||||
|
||||
instance, err := getModuleHandle()
|
||||
if err != nil {
|
||||
return out, false, err
|
||||
}
|
||||
|
||||
fn := func(hwnd syscall.Handle, msg uint32, wparam, lparam uintptr) uintptr {
|
||||
switch msg {
|
||||
case wmClose:
|
||||
notCancledOrClosed = false
|
||||
destroyWindow(hwnd)
|
||||
case wmDestroy:
|
||||
postQuitMessage(0)
|
||||
case wmKeydown:
|
||||
if wparam == vkEscape {
|
||||
notCancledOrClosed = false
|
||||
destroyWindow(hwnd)
|
||||
}
|
||||
case wmCommand:
|
||||
if wparam == 100 {
|
||||
out = getWindowText(hwndEdit)
|
||||
destroyWindow(hwnd)
|
||||
} else if wparam == 110 {
|
||||
notCancledOrClosed = false
|
||||
destroyWindow(hwnd)
|
||||
}
|
||||
default:
|
||||
ret := defWindowProc(hwnd, msg, wparam, lparam)
|
||||
return ret
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
err = registerClass(className, instance, fn)
|
||||
if err != nil {
|
||||
return out, false, err
|
||||
}
|
||||
defer unregisterClass(className, instance)
|
||||
|
||||
hwnd, _ := createWindow(0, className, title, wsOverlappedWindow, swUseDefault, swUseDefault, 235, 140, 0, 0, instance)
|
||||
hwndText, _ := createWindow(0, "STATIC", text, wsChild|wsVisible, 10, 10, 200, 16, hwnd, 0, instance)
|
||||
|
||||
flags := wsBorder | wsChild | wsVisible | wsGroup | wsTabStop | esAutoHScroll
|
||||
if password {
|
||||
flags |= esPassword
|
||||
}
|
||||
hwndEdit, _ = createWindow(wsExClientEdge, "EDIT", defaultText, uint64(flags), 10, 30, 200, 24, hwnd, 0, instance)
|
||||
|
||||
hwndOK, _ := createWindow(wsExClientEdge, "BUTTON", "OK", wsChild|wsVisible|bsPushButton|wsGroup|wsTabStop, 10, 65, 90, 24, hwnd, 100, instance)
|
||||
hwndCancel, _ := createWindow(wsExClientEdge, "BUTTON", "Cancel", wsChild|wsVisible|bsPushButton|wsGroup|wsTabStop, 120, 65, 90, 24, hwnd, 110, instance)
|
||||
|
||||
setWindowLong(hwnd, gwlStyle, getWindowLong(hwnd, gwlStyle)^wsMinimizeBox)
|
||||
setWindowLong(hwnd, gwlStyle, getWindowLong(hwnd, gwlStyle)^wsMaximizeBox)
|
||||
|
||||
font := getMessageFont()
|
||||
sendMessage(hwndText, wmSetFont, font, 0)
|
||||
sendMessage(hwndEdit, wmSetFont, font, 0)
|
||||
sendMessage(hwndOK, wmSetFont, font, 0)
|
||||
sendMessage(hwndCancel, wmSetFont, font, 0)
|
||||
|
||||
centerWindow(hwnd)
|
||||
|
||||
showWindow(hwnd, swShowNormal)
|
||||
updateWindow(hwnd)
|
||||
|
||||
err = messageLoop(hwnd)
|
||||
if err != nil {
|
||||
return out, false, err
|
||||
}
|
||||
|
||||
return out, notCancledOrClosed, nil
|
||||
}
|
||||
Loading…
Reference in a new issue