listview.c

WINDOWS CE 通信指南(附光盘) 本书配套光盘内容包括：本书的英文版电子书；SDK for Windows CE

/***********************************************************************
   
THIS CODE AND INFORMATION IS PROVIDED AS IS WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
PURPOSE.

Copyright(c)  1999  Microsoft Corporation.  All Rights Reserved.

MODULE: 
  ListView.c

ABSTRACT: 
  This Windows CE application shows how to register list view and 
  header control classes, and create a list view control.

***********************************************************************/
#ifndef STRICT
#define STRICT
#endif

#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include "resource.h"

#define ITEM_COUNT  100   // Limit of number of items in the list view
#define ID_LISTVIEW 2000  // Identifier of the list view control

HINSTANCE g_hInst;        // Handle to the application instance
HWND g_hwndCB = NULL;     // Handle to the commandbar
HWND g_hwndLV = NULL;     // Handle to the list view control
HWND g_hwndMain = NULL;   // Handle to the application main window

TCHAR g_szTitle[80];      // Main window name
TCHAR g_szClassName[80];  // Main window class name

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM);
BOOL CALLBACK AboutDialogProc (HWND, UINT, WPARAM, LPARAM);

HWND CreateListView (HINSTANCE hInstance, HWND hwndParent);
BOOL InitListView (HWND hwndListView);
void UpdateMenu (HWND, HMENU);
void SwitchView (HWND, DWORD);
void ResizeListView (HWND, HWND);
LRESULT ListViewNotify (HWND, LPARAM);


/***********************************************************************

FUNCTION: 
  InitApplication

PURPOSE: 
  Initializes and registers a windows class.

***********************************************************************/
BOOL InitApplication (HINSTANCE hInstance)
{
  WNDCLASS wndclass;

  wndclass.style = CS_HREDRAW | CS_VREDRAW;
  wndclass.lpfnWndProc = (WNDPROC) WndProc;
  wndclass.cbClsExtra = 0;
  wndclass.cbWndExtra = 0;
  wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE(IDI_MAINICON));
  wndclass.hInstance = hInstance;
  wndclass.hCursor = NULL;
  wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
  wndclass.lpszMenuName = NULL;
  wndclass.lpszClassName = g_szClassName;
  
  return RegisterClass (&wndclass);
}


/***********************************************************************

FUNCTION: 
  InitInstance

PURPOSE: 
  Creates and displays the main window.

***********************************************************************/
BOOL InitInstance (HINSTANCE hInstance, int nCmdShow)
{
  g_hInst = hInstance;

  g_hwndMain = CreateWindow (
                  g_szClassName,  // Registered class name         
                  g_szTitle,      // Application window name
                  WS_VISIBLE,     // Window style
                  0,              // Horizontal position of the window
                  0,              // Vertical position of the window
                  CW_USEDEFAULT,  // Window width
                  CW_USEDEFAULT,  // Window height
                  NULL,           // Handle to the parent window
                  NULL,           // Handle to the menu identifier
                  hInstance,      // Handle to the application instance
                  NULL);          // Pointer to the window-creation data

  // If it failed to create the window, return FALSE.
  if (!g_hwndMain)
    return FALSE;

  ShowWindow (g_hwndMain, nCmdShow);
  UpdateWindow (g_hwndMain);
  return TRUE;
}

/***********************************************************************

FUNCTION: 
  WinMain

PURPOSE: 
  Called by the system as the initial entry point for this Windows 
  CE-based application.

***********************************************************************/
int WINAPI WinMain (
            HINSTANCE hInstance,      // Handle to the current instance
            HINSTANCE hPrevInstance,  // Handle to the previous instance
            LPWSTR lpCmdLine,         // Pointer to the command line
            int nCmdShow)             // Show state of the window
{
  MSG msg;

  // Load the window and window class name strings.
  LoadString (hInstance, IDS_TITLE, g_szTitle, 
              sizeof (g_szTitle) / sizeof (TCHAR));

  LoadString (hInstance, IDS_CLASSNAME, g_szClassName, 
              sizeof (g_szClassName) / sizeof (TCHAR));

  if (!hPrevInstance)
  {
    if (!InitApplication (hInstance))
      return 0; 
  }

  if (!InitInstance (hInstance, nCmdShow))
    return 0;
  
  while (GetMessage (&msg, NULL, 0, 0))
  {
    TranslateMessage (&msg);
    DispatchMessage (&msg);
  }
  
  return msg.wParam;
}


/***********************************************************************

FUNCTION: 
  WndProc

PURPOSE: 
  Processes messages sent to the main window.

***********************************************************************/
LRESULT CALLBACK WndProc (HWND hwnd, UINT uMsg, WPARAM wParam, 
                          LPARAM lParam)
{
  switch (uMsg)
  {
    case WM_CREATE:
      // Create the command bar and insert the menu.
      g_hwndCB = CommandBar_Create (g_hInst, hwnd, 1);
      CommandBar_InsertMenubar (g_hwndCB, g_hInst, IDM_MAIN_MENU, 0);
      CommandBar_AddAdornments (g_hwndCB, 0, 0);

      // Create the list view control.
      g_hwndLV = CreateListView (g_hInst, hwnd);
      
      // Initialize the list view control.
      InitListView (g_hwndLV);
      
      return 0;

    case WM_NOTIFY:
      return ListViewNotify (hwnd, lParam);
   
    case WM_SIZE:
      ResizeListView (g_hwndLV, hwnd);
      return 0;

    case WM_INITMENUPOPUP:
      UpdateMenu (g_hwndLV, CommandBar_GetMenu (g_hwndCB, 0));
      break;
   
    case WM_COMMAND:
      switch (GET_WM_COMMAND_ID (wParam, lParam))
      {
        case IDM_LARGE_ICONS:
          SwitchView (g_hwndLV, LVS_ICON);
          return 0;
         
        case IDM_SMALL_ICONS:
          SwitchView (g_hwndLV, LVS_SMALLICON);
          return 0;
         
        case IDM_LIST:
          SwitchView (g_hwndLV, LVS_LIST);
          return 0;
         
        case IDM_REPORT:
          SwitchView (g_hwndLV, LVS_REPORT);
          return 0;
         
        case IDM_EXIT:
          SendMessage (hwnd, WM_CLOSE, 0, 0);
          return 0;
         
        case IDM_ABOUT:
          DialogBox (g_hInst, MAKEINTRESOURCE(IDD_ABOUT), hwnd, 
                     AboutDialogProc);
          return 0;
      }
      break;

    case WM_CLOSE:
      CommandBar_Destroy (g_hwndCB);
      DestroyWindow (hwnd);
      return 0;

    case WM_DESTROY:
      PostQuitMessage (0);
      return 0;
  }
  return DefWindowProc (hwnd, uMsg, wParam, lParam);
}


/***********************************************************************

FUNCTION: 
  AboutDialogProc

PURPOSE: 
  Processes messages sent to the About dialog box window.

***********************************************************************/
BOOL CALLBACK AboutDialogProc (
                         HWND hwndDlg,    // Handle to the dialog box
                         UINT uMsg,       // Message
                         WPARAM wParam,   // First message parameter
                         LPARAM lParam)   // Second message parameter
{
  switch (uMsg)
  {
    case WM_INITDIALOG:
      return TRUE;  

    case WM_COMMAND:
      switch (LOWORD (wParam))
      {
        case IDOK:
          EndDialog (hwndDlg, IDOK);
          return TRUE;

        case IDCANCEL:
          EndDialog (hwndDlg, IDCANCEL);
          return TRUE;
      }
      break;
  }
  return FALSE;
}
      

/***********************************************************************

FUNCTION: 
  CreateListView

PURPOSE: 
  Registers list view and header control classes, and creates a list 
  view control.