113 lines
2.6 KiB
Go
113 lines
2.6 KiB
Go
// 7 february 2014
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package ui
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import (
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"fmt"
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"os"
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"syscall"
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"unsafe"
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)
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// TODO change what the default window titles are?
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// MessageBox button types.
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const (
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_MB_ABORTRETRYIGNORE = 0x00000002
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_MB_CANCELTRYCONTINUE = 0x00000006
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_MB_HELP = 0x00004000
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_MB_OK = 0x00000000
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_MB_OKCANCEL = 0x00000001
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_MB_RETRYCANCEL = 0x00000005
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_MB_YESNO = 0x00000004
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_MB_YESNOCANCEL = 0x00000003
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)
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// MessageBox icon types.
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const (
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_MB_ICONEXCLAMATION = 0x00000030
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_MB_ICONWARNING = 0x00000030
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_MB_ICONINFORMATION = 0x00000040
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_MB_ICONASTERISK = 0x00000040
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_MB_ICONQUESTION = 0x00000020
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_MB_ICONSTOP = 0x00000010
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_MB_ICONERROR = 0x00000010
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_MB_ICONHAND = 0x00000010
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)
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// MessageBox default button types.
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const (
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_MB_DEFBUTTON1 = 0x00000000
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_MB_DEFBUTTON2 = 0x00000100
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_MB_DEFBUTTON3 = 0x00000200
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_MB_DEFBUTTON4 = 0x00000300
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)
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// MessageBox modality types.
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const (
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_MB_APPLMODAL = 0x00000000
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_MB_SYSTEMMODAL = 0x00001000
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_MB_TASKMODAL = 0x00002000
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)
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// MessageBox miscellaneous types.
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const (
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_MB_DEFAULT_DESKTOP_ONLY = 0x00020000
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_MB_RIGHT = 0x00080000
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_MB_RTLREADING = 0x00100000
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_MB_SETFOREGROUND = 0x00010000
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_MB_TOPMOST = 0x00040000
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_MB_SERVICE_NOTIFICATION = 0x00200000
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)
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// MessageBox return values.
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const (
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_IDABORT = 3
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_IDCANCEL = 2
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_IDCONTINUE = 11
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_IDIGNORE = 5
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_IDNO = 7
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_IDOK = 1
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_IDRETRY = 4
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_IDTRYAGAIN = 10
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_IDYES = 6
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)
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var (
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_messageBox = user32.NewProc("MessageBoxW")
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)
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func _msgBox(primarytext string, secondarytext string, uType uint32) (result int) {
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// http://msdn.microsoft.com/en-us/library/windows/desktop/aa511267.aspx says "Use task dialogs whenever appropriate to achieve a consistent look and layout. Task dialogs require Windows Vista® or later, so they aren't suitable for earlier versions of Windows. If you must use a message box, separate the main instruction from the supplemental instruction with two line breaks."
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text := primarytext
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if secondarytext != "" {
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text += "\n\n" + secondarytext
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}
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ret := make(chan uiret)
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defer close(ret)
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uitask <- &uimsg{
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call: _messageBox,
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p: []uintptr{
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uintptr(_NULL),
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uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(text))),
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uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(os.Args[0]))),
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uintptr(uType),
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},
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ret: ret,
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}
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r := <-ret
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if r.ret == 0 { // failure
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panic(fmt.Sprintf("error displaying message box to user: %v\nstyle: 0x%08X\ntitle: %q\ntext:\n%s", r.err, uType, os.Args[0], text))
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}
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return int(r.ret)
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}
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func msgBox(primarytext string, secondarytext string) {
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// TODO add an icon?
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_msgBox(primarytext, secondarytext, _MB_OK)
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}
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func msgBoxError(primarytext string, secondarytext string) {
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_msgBox(primarytext, secondarytext, _MB_OK | _MB_ICONERROR)
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}
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