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// 7 february 2014
package main
import (
"syscall"
"unsafe"
)
// MessageBox button types.
const (
MB_ABORTRETRYIGNORE = 0x00000002
MB_CANCELTRYCONTINUE = 0x00000006
MB_HELP = 0x00004000
MB_OK = 0x00000000
MB_OKCANCEL = 0x00000001
MB_RETRYCANCEL = 0x00000005
MB_YESNO = 0x00000004
MB_YESNOCANCEL = 0x00000003
)
// MessageBox icon types.
const (
MB_ICONEXCLAMATION = 0x00000030
MB_ICONWARNING = 0x00000030
MB_ICONINFORMATION = 0x00000040
MB_ICONASTERISK = 0x00000040
MB_ICONQUESTION = 0x00000020
MB_ICONSTOP = 0x00000010
MB_ICONERROR = 0x00000010
MB_ICONHAND = 0x00000010
)
// MessageBox default button types.
const (
MB_DEFBUTTON1 = 0x00000000
MB_DEFBUTTON2 = 0x00000100
MB_DEFBUTTON3 = 0x00000200
MB_DEFBUTTON4 = 0x00000300
)
// MessageBox modality types.
const (
MB_APPLMODAL = 0x00000000
MB_SYSTEMMODAL = 0x00001000
MB_TASKMODAL = 0x00002000
)
// MessageBox miscellaneous types.
const (
MB_DEFAULT_DESKTOP_ONLY = 0x00020000
MB_RIGHT = 0x00080000
MB_RTLREADING = 0x00100000
MB_SETFOREGROUND = 0x00010000
MB_TOPMOST = 0x00040000
MB_SERVICE_NOTIFICATION = 0x00200000
)
// MessageBox return values.
const (
IDABORT = 3
IDCANCEL = 2
IDCONTINUE = 11
IDIGNORE = 5
IDNO = 7
IDOK = 1
IDRETRY = 4
IDTRYAGAIN = 10
IDYES = 6
)
var (
messageBox = user32.NewProc("MessageBoxW")
)
func MessageBox(hWnd HWND, lpText string, lpCaption string, uType uint32) (result int, err error) {
r1, _, err := messageBox.Call(
uintptr(unsafe.Pointer(hWnd)),
uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpText))),
uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(lpCaption))),
uintptr(uType))
if r1 == 0 { // failure
return 0, err
}
return int(r1), nil
}
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