filedrm.cpp

WIndows mobile 5.0 pocket pc sdk sample for win32

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//

// FileDRM.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "FileDRM.h"
#include "ImageView.h"

// Global Variables:
HINSTANCE			g_hInst;						// current instance
HWND				g_hWndMenuBar;					// menu bar handle
TCHAR				g_szCurrentDirectory[MAX_PATH];	// Current directory in the list view
CImageView			*g_pDisplayedImage;				// Image being displayed (if any)

// Forward declarations of functions included in this code module:
ATOM			MyRegisterClass(HINSTANCE, LPTSTR);
BOOL			InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
#ifndef WIN32_PLATFORM_WFSP
INT_PTR CALLBACK	About(HWND, UINT, WPARAM, LPARAM);
#endif // !WIN32_PLATFORM_WFSP

LRESULT				OnNotify				(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
HRESULT				DisplayJPEG				(HWND hWnd, const LPCTSTR pszDirectory, const LPCTSTR pszFile);
HRESULT				ShowProtectionStatus	(HWND hWndList);
LRESULT				OnInitMenuPopup			(HWND hWndList, HMENU hmenuPopup);


int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPTSTR    lpCmdLine,
                   int       nCmdShow)
{
	MSG msg;

	// Perform application initialization:
	if (!InitInstance(hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	if (FAILED (CoInitializeEx (NULL, COINIT_MULTITHREADED)))
	{
		return FALSE;
	}

#ifndef WIN32_PLATFORM_WFSP
	HACCEL hAccelTable;
	hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_FILEDRM));
#endif // !WIN32_PLATFORM_WFSP

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
#ifndef WIN32_PLATFORM_WFSP
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
#endif // !WIN32_PLATFORM_WFSP
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	CoUninitialize ();
	return (int) msg.wParam;
}

//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
	WNDCLASS wc;

	wc.style         = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc   = WndProc;
	wc.cbClsExtra    = 0;
	wc.cbWndExtra    = 0;
	wc.hInstance     = hInstance;
	wc.hIcon         = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_FILEDRM));
	wc.hCursor       = 0;
	wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
	wc.lpszMenuName  = 0;
	wc.lpszClassName = szWindowClass;

	return RegisterClass(&wc);
}

//
//   FUNCTION: InitInstance(HINSTANCE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    HWND hWnd;
    TCHAR szTitle[MAX_LOADSTRING];		// title bar text
    TCHAR szWindowClass[MAX_LOADSTRING];	// main window class name

    g_hInst = hInstance; // Store instance handle in our global variable

#ifdef WIN32_PLATFORM_PSPC
    // SHInitExtraControls should be called once during your application's initialization to initialize any
    // of the Pocket PC special controls such as CAPEDIT and SIPPREF.
    SHInitExtraControls();
#endif // WIN32_PLATFORM_PSPC
	
	// Ensure that the common control DLL is loaded.
	InitCommonControls();

    LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); 
    LoadString(hInstance, IDC_FILEDRM, szWindowClass, MAX_LOADSTRING);

#if defined(WIN32_PLATFORM_PSPC) || defined(WIN32_PLATFORM_WFSP)
    //If it is already running, then focus on the window, and exit
    hWnd = FindWindow(szWindowClass, szTitle);	
    if (hWnd) 
    {
        // set focus to foremost child window
        // The "| 0x00000001" is used to bring any owned windows to the foreground and
        // activate them.
        SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
        return 0;
    } 
#endif // WIN32_PLATFORM_PSPC || WIN32_PLATFORM_WFSP

    if (!MyRegisterClass(hInstance, szWindowClass))
    {
    	return FALSE;
    }

	SHGetSpecialFolderPath (NULL, g_szCurrentDirectory, CSIDL_PERSONAL, FALSE);

    hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
        CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);

    if (!hWnd)
    {
        return FALSE;
    }

#ifdef WIN32_PLATFORM_PSPC
    // When the main window is created using CW_USEDEFAULT the height of the menubar (if one
    // is created is not taken into account). So we resize the window after creating it
    // if a menubar is present
    if (g_hWndMenuBar)
    {
        RECT rc;
        RECT rcMenuBar;

        GetWindowRect(hWnd, &rc);
        GetWindowRect(g_hWndMenuBar, &rcMenuBar);
        rc.bottom -= (rcMenuBar.bottom - rcMenuBar.top);
		
        MoveWindow(hWnd, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, FALSE);
    }
#endif // WIN32_PLATFORM_PSPC

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

	return TRUE;
}

//
//  FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static HWND		s_hWndLV = 0;
	int				wmId;
	int				wmEvent;
    PAINTSTRUCT		ps;
    HDC				hdc;

#if defined(SHELL_AYGSHELL) && !defined(WIN32_PLATFORM_WFSP)
    static SHACTIVATEINFO s_sai;
#endif // SHELL_AYGSHELL && !WIN32_PLATFORM_WFSP
	
    switch (message) 
    {
		case WM_NOTIFY:
			return OnNotify (hWnd, message, wParam, lParam);
			break;

		case WM_COMMAND:
            wmId    = LOWORD(wParam); 
            wmEvent = HIWORD(wParam); 
            // Parse the menu selections:
            switch (wmId)
            {
#ifndef WIN32_PLATFORM_WFSP
                case IDM_HELP_ABOUT:
                    DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
                    break;
#endif // !WIN32_PLATFORM_WFSP
#ifdef WIN32_PLATFORM_WFSP
                case IDM_OK:
                    if (g_pDisplayedImage)
					{
						ShowWindow (s_hWndLV, SW_SHOW);
						SetFocus (s_hWndLV);

						delete g_pDisplayedImage;
						g_pDisplayedImage = NULL;
					}
                    else
                    {
                        DestroyWindow(hWnd);
                    }
                    break;
#endif // WIN32_PLATFORM_WFSP
#ifndef WIN32_PLATFORM_WFSP
                case IDM_OK:
                    if (g_pDisplayedImage)
					{
						ShowWindow (s_hWndLV, SW_SHOW);
						SetFocus (s_hWndLV);

						delete g_pDisplayedImage;
						g_pDisplayedImage = NULL;
					}
                    else
                    {
                        SendMessage (hWnd, WM_CLOSE, 0, 0);				
                    }
                    break;
#endif // !WIN32_PLATFORM_WFSP

				case ID_MENU_UP:

					if (g_pDisplayedImage)
					{
						ShowWindow (s_hWndLV, SW_SHOW);
						SetFocus (s_hWndLV);

						delete g_pDisplayedImage;
						g_pDisplayedImage = NULL;
					}
					else
					{
						LPTSTR	pszTemp;
	
						pszTemp = _tcsrchr (g_szCurrentDirectory, _T('\\'));
						if (pszTemp)
						{
							if (pszTemp == g_szCurrentDirectory)
							{
								*(pszTemp + 1) = _T('\0');
							}
							else
							{
								*pszTemp = _T('\0');
							}
						}
						FillListView (g_hInst, s_hWndLV, g_szCurrentDirectory);
					}
					break;

				case ID_MENU_DRMPROTECTION:
					ShowProtectionStatus (s_hWndLV);
					break;

                default:
                    return DefWindowProc(hWnd, message, wParam, lParam);
            }
            break;
        case WM_CREATE:
#ifdef SHELL_AYGSHELL
            SHMENUBARINFO mbi;

            memset(&mbi, 0, sizeof(SHMENUBARINFO));
            mbi.cbSize     = sizeof(SHMENUBARINFO);
            mbi.hwndParent = hWnd;
            mbi.nToolBarId = IDR_MENU;
            mbi.hInstRes   = g_hInst;

            if (!SHCreateMenuBar(&mbi)) 
            {
                g_hWndMenuBar = NULL;
            }
            else
            {
                g_hWndMenuBar = mbi.hwndMB;
            }

#ifndef WIN32_PLATFORM_WFSP
            // Initialize the shell activate info structure
            memset(&s_sai, 0, sizeof (s_sai));
            s_sai.cbSize = sizeof (s_sai);
#endif // !WIN32_PLATFORM_WFSP
#endif // SHELL_AYGSHELL

			s_hWndLV = CreateListView(g_hInst, hWnd, g_hWndMenuBar);