mirror of
https://github.com/wailsapp/wails.git
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100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
//+build windows
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package ffenestri
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import (
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"log"
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"unsafe"
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"github.com/wailsapp/wails/v2/internal/menumanager"
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"golang.org/x/sys/windows"
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)
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var (
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// DLL stuff
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user32 = windows.NewLazySystemDLL("User32.dll")
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win32CreateMenu = user32.NewProc("CreateMenu")
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win32DestroyMenu = user32.NewProc("DestroyMenu")
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win32CreatePopupMenu = user32.NewProc("CreatePopupMenu")
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win32AppendMenuW = user32.NewProc("AppendMenuW")
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win32SetMenu = user32.NewProc("SetMenu")
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win32CheckMenuItem = user32.NewProc("CheckMenuItem")
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win32GetMenuState = user32.NewProc("GetMenuState")
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win32CheckMenuRadioItem = user32.NewProc("CheckMenuRadioItem")
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applicationMenu *menumanager.WailsMenu
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menuManager *menumanager.Manager
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)
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const MF_BITMAP uint32 = 0x00000004
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const MF_CHECKED uint32 = 0x00000008
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const MF_DISABLED uint32 = 0x00000002
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const MF_ENABLED uint32 = 0x00000000
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const MF_GRAYED uint32 = 0x00000001
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const MF_MENUBARBREAK uint32 = 0x00000020
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const MF_MENUBREAK uint32 = 0x00000040
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const MF_OWNERDRAW uint32 = 0x00000100
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const MF_POPUP uint32 = 0x00000010
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const MF_SEPARATOR uint32 = 0x00000800
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const MF_STRING uint32 = 0x00000000
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const MF_UNCHECKED uint32 = 0x00000000
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const MF_BYCOMMAND uint32 = 0x00000000
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const MF_BYPOSITION uint32 = 0x00000400
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// ------------------- win32 calls -----------------------
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func createWin32Menu() (win32Menu, error) {
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res, _, err := win32CreateMenu.Call()
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if res == 0 {
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return 0, err
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}
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return win32Menu(res), nil
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}
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func destroyWin32Menu(menu win32Menu) error {
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res, _, err := win32CreateMenu.Call(uintptr(menu))
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if res == 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 createWin32PopupMenu() (win32Menu, error) {
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res, _, err := win32CreatePopupMenu.Call()
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if res == 0 {
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return 0, err
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}
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return win32Menu(res), nil
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}
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func appendWin32MenuItem(menu win32Menu, flags uintptr, submenuOrID uintptr, label string) error {
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menuText, err := windows.UTF16PtrFromString(label)
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if err != nil {
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return err
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}
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res, _, err := win32AppendMenuW.Call(
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uintptr(menu),
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flags,
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submenuOrID,
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uintptr(unsafe.Pointer(menuText)),
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)
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if res == 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 setWindowMenu(window win32Window, menu win32Menu) error {
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res, _, err := win32SetMenu.Call(uintptr(window), uintptr(menu))
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if res == 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 selectRadioItem(selectedMenuID, startMenuItemID, endMenuItemID win32MenuItemID, parent win32Menu) {
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res, _, err := win32CheckMenuRadioItem.Call(uintptr(parent), uintptr(startMenuItemID), uintptr(endMenuItemID), uintptr(selectedMenuID), uintptr(MF_BYCOMMAND))
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if int(res) == 0 {
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log.Fatal(err)
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}
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}
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