login.c

MiniGUI图形界面实验系列之控件应用实验例程。

// 系统登录窗口
#include <string.h>
#include <minigui/common.h>
#include <minigui/minigui.h>
#include <minigui/gdi.h>
#include <minigui/window.h>
#include <minigui/control.h>

HWND hMainWnd;

#define  IDC_SLOGIN	300
#define  IDC_SUSER	301
#define  IDC_SPASS	302
#define  IDC_EUSER	401
#define  IDC_EPASS	402


// 定义对话框
static  DLGTEMPLATE  MyDlg =
{   WS_BORDER | WS_CAPTION,
    WS_EX_NONE,
    2, 50, 235, 190,
    "登录", 
    0, 
    0,
    6, 
    NULL,
    0    
};

// 定义对话框中的控件
static CTRLDATA CtrlInitData[] = 
{   
    {   "static",
        WS_VISIBLE | SS_SIMPLE,
	25,10,  200, 16,
	IDC_SLOGIN,
	"请输入用户名和密码.",
	0,
        WS_EX_NONE
    },
    {   "static",
        WS_VISIBLE | SS_SIMPLE,
	10,40,  60, 16,
	IDC_SUSER,
	"用户名:",
	0,
        WS_EX_NONE
    },
    {   "static",
        WS_VISIBLE | SS_SIMPLE,
	10,80,  60, 16,
	IDC_SPASS,
	"密码:",
	0,
        WS_EX_NONE
    },
    {   "edit",
       WS_CHILD | WS_VISIBLE | WS_BORDER | WS_TABSTOP,
       70,40,  140,25,
       IDC_EUSER,
       "",
       0,
       WS_EX_NONE
    },  
    {   "edit",
       WS_CHILD | WS_VISIBLE | WS_BORDER | ES_PASSWORD | WS_TABSTOP,
       70,80, 140,25,
       IDC_EPASS,
       "",
       0,
       WS_EX_NONE
    },
    {  "button",
       WS_VISIBLE | WS_TABSTOP | BS_DEFPUSHBUTTON,
       80,120,  80,25,
       IDOK,
       "确定",
       0,
       WS_EX_NONE
    }
};


#define  USER_NO	3
static char *g_user[USER_NO] = {"root",
			      "51",
			      "WXM"
			     };
static char *g_pass[USER_NO] = {"******",
			      "888888",
			      "2046"
			     };

static BOOL CheckUser(char *user, char *pass)
{  int  i;
  
   if(USER_NO==0) return(TRUE);	// 不启用密码
   for(i=0; i<USER_NO; i++)
   {  if(strcmp(user, g_user[i]) == 0)
      {  if(strcmp(pass, g_pass[i]) == 0) return(TRUE);
           else  return(FALSE);
      }
   }
	
   return(FALSE);
}

static int  MyDlgProc(HWND hDlg, int message, WPARAM wParam, LPARAM lParam)
{   char  user[30];
    char  pass[30];

    switch(message)
    {   case MSG_INITDIALOG:
           return(1);
	  
        case MSG_COMMAND:
	   switch(LOWORD(wParam))
	   {   case IDC_EUSER:			// 处理控件的通知消息(EN_ENTER)
               case IDC_EPASS:
                  if(HIWORD(wParam) != EN_ENTER) break;
	       case IDOK:
		  // 读取编辑框的输入
		  GetWindowText(GetDlgItem(hDlg, IDC_EUSER), user, 22);
                  GetWindowText(GetDlgItem(hDlg, IDC_EPASS), pass, 22);
		  if(CheckUser(user, pass))
	          {  EndDialog(hDlg, wParam);
                     DestroyAllControls(hDlg);
		  }
		  else
		  {  MessageBox(hDlg, "密码错误!", "校验错误", MB_OK | MB_ICONHAND);
		  }
		  break;

	       default:
           	  break;
	   }
	   break;

	default:
           break;
    }
   
    return(DefaultDialogProc(hDlg, message, wParam, lParam));
}


static void  LoginBox(HWND hWnd)
{   MyDlg.controls = CtrlInitData;
    DialogBoxIndirectParam(&MyDlg, hWnd, MyDlgProc, 0L);
}


static char *hello_str = "欢迎登录系统!";
static int  WinProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{   HDC  hdc;
    
    switch(message)
    {  case MSG_PAINT:
	  hdc = BeginPaint(hWnd);
	  TextOut(hdc, 50, 50, hello_str);
	  EndPaint(hWnd, hdc);
	  break;

       case MSG_CLOSE:
	  DestroyMainWindow(hWnd);
	  PostQuitMessage(hWnd);
	  break;

       default:
	  return(DefaultMainWinProc(hWnd, message, wParam, lParam));
    }

    return(0);
}


int InitMainWindow(void)
{   MAINWINCREATE  window_info;

    window_info.dwStyle = WS_VISIBLE | WS_BORDER | WS_CAPTION;
    window_info.dwExStyle = WS_EX_NONE;
    window_info.spCaption = "MiniGUI";
    window_info.hMenu = 0;
    window_info.hCursor = GetSystemCursor(0);
    window_info.hIcon = 0;
    window_info.MainWindowProc = WinProc;
    window_info.lx = 2;
    window_info.ty = 50;
    window_info.rx = 238;
    window_info.by = 200;
    window_info.iBkColor = COLOR_lightwhite;
    window_info.dwAddData = 0;
    window_info.hHosting = HWND_DESKTOP; 
    
    hMainWnd = CreateMainWindow (&window_info);
    if (hMainWnd == HWND_INVALID) return(0);
      else  return(1);
}


int  MiniGUIMain(int argc, const char *argv[])
{   MSG Msg;

#ifdef _LITE_VERSION
    SetDesktopRect(0,0, 800,600);
#endif

    LoginBox(HWND_DESKTOP);

    InitMainWindow();
    ShowWindow(hMainWnd, SW_SHOWNORMAL);

    while (GetMessage(&Msg, hMainWnd)) 
    {   TranslateMessage(&Msg);
        DispatchMessage(&Msg);
    }
    
    MainWindowThreadCleanup (hMainWnd);

    return(0);
}

#ifndef _LITE_VERSION
	#include <minigui/dti.c>
#endif