程式語言 - uC/GUI - Handle Menu Event

參考資訊：
https://github.com/piyushpandey013/ucGUI
https://github.com/yongzhena/ucgui-linux

main.c

#include <stdio.h>
#include <stdlib.h>

#include "GUI.h"
#include "MENU.h" 
#include "MULTIPAGE.h"
  
static GUI_WIDGET_CREATE_INFO info[] = {
    { FRAMEWIN_CreateIndirect, "Dialog", 0, 10, 10, 200, 100, WM_CF_SHOW, 0 },
};

static int add_menu(MENU_Handle hMenu, MENU_Handle hSubMenu, const char *pText, U16 dwID, U16 dwFlags)
{
    MENU_ITEM_DATA m = { 0 };

    m.pText = pText;
    m.hSubmenu = hSubMenu;
    m.Flags = dwFlags;
    m.Id = dwID;
    MENU_AddItem(hMenu, &m);

    return 0;
}

static int create_menu(WM_HWIN hParent)
{
    MENU_Handle hMenu = 0;
    MENU_Handle hMenuFile = 0;

    hMenu = MENU_CreateEx(0, 0, 0, 0, WM_UNATTACHED, 0, MENU_CF_HORIZONTAL, 100);
    hMenuFile = MENU_CreateEx(0, 0, 0, 0, WM_UNATTACHED, 0, MENU_CF_VERTICAL, 0);
    add_menu(hMenuFile, 0, "New", 101, 0);
    add_menu(hMenuFile, 0, "Open", 102, 0);
    add_menu(hMenuFile, 0, 0, 0, MENU_IF_SEPARATOR);
    add_menu(hMenuFile, 0, "Exit", 103, 0);

    add_menu(hMenu, hMenuFile, "File", 0 ,0);
    FRAMEWIN_AddMenu(hParent, hMenu);
}

static void WndProc(WM_MESSAGE* pMsg)
{
    char buf[255] = { 0 };
    WM_KEY_INFO* pKeyInfo = NULL;
    MENU_MSG_DATA *pMenuInfo = NULL;
   
    switch (pMsg->MsgId) {
    case WM_INIT_DIALOG:
        create_menu(pMsg->hWin);
        break;
    case WM_MENU:
        pMenuInfo = (MENU_MSG_DATA *)pMsg->Data.p;
        switch (pMenuInfo->MsgType) {
        case MENU_ON_ITEMSELECT:
            if (pMenuInfo->ItemId == 103) {
                GUI_EndDialog(pMsg->hWin, 0);
                break;
            }
            sprintf(buf, "ID %d", pMenuInfo->ItemId);
            GUI_MessageBox(buf, "main", GUI_MB_OK);
            break;
        }
        break;
    default:
        WM_DefaultProc(pMsg);
    }
}
  
int main(int argc, char *argv[])
{
    GUI_Init();
    GUI_SetBkColor(GUI_GRAY);
    GUI_Clear();
  
    GUI_ExecDialogBox(info, GUI_COUNTOF(info), WndProc, 0, 0, 0);
    return 0;
}

編譯、執行

$ gcc main.c -o main libucgui.a -IGUI_X -IGUI/Core -IGUI/Widget -IGUI/WM -lSDL
$ ./main