iconpro.c

ICon文件格式

            if( (hWndActive = (HWND)SendMessage( hMDIClientWnd, WM_MDIGETACTIVE, 0, 0)) != NULL )
                SendMessage( hWndActive, WM_CLOSE, 0, lParam );
        }
        break; // End ID_FILE_CLOSE

        // File->Exit menu option - shut 'er down
        case ID_F_EXIT:
            // Just send a WM_CLOSE - code there will handle it
            PostMessage( hWnd, WM_CLOSE, (WPARAM)0, (LPARAM)0 );
        break; // End ID_F_EXIT

        // Edit->Import BMP and Edit->Stretch-Import BMP - convert BMP file to icon
        // Edit->Copy, Edit->Paste, Edit->StretchPaste, Edit->AddFormat, Edit->RemoveFormat
        // menu options. Just pass 'em on to the currently active MDI child window
        case ID_EDIT_EXPORTBMP:
        case ID_EDIT_IMPORTBMP:
        case ID_EDIT_STRETCHIMPORTBMP:
        case ID_EDIT_COPY:
        case ID_EDIT_PASTE:
        case ID_EDIT_STRETCHPASTE:
        case ID_EDIT_ADDFORMAT:
        case ID_EDIT_REMOVEFORMAT:
        {
            HWND    hWndActive;
            
            // Get active MDI child
            if( (hWndActive = (HWND)SendMessage( hMDIClientWnd, WM_MDIGETACTIVE, 0, 0 )) != NULL )
            {
                // Pass the message along
                SendMessage( hWndActive, WM_COMMAND, wParam, 0 );
            }
        }
        break; // End ID_EDIT_XXXX

        // Window->ArrangeIcons menu option
        case ID_WINDOW_ARRANGEICONS:
            // Ask the MDIClient to do it
            SendMessage( hMDIClientWnd, WM_MDIICONARRANGE, 0, 0);
        break; // End ID_WINDOW_ARRANGEICONS

        // Window->Cascade menu option
        case ID_WINDOW_CASCADE:
            // Ask the MDIClient to do it
            SendMessage( hMDIClientWnd, WM_MDICASCADE, 0, 0);
        break; // End ID_WINDOW_CASCADE

        // Window->Tile menu option
        case ID_WINDOW_TILE:
            // Ask the MDIClient to do it
            SendMessage( hMDIClientWnd, WM_MDITILE, (WPARAM)MDITILE_HORIZONTAL, 0);
        break; // End ID_WINDOW_TILE

        // Window->TileVertical menu option
        case ID_WINDOW_TILEVERTICAL:
            // Ask the MDIClient to do it
            SendMessage( hMDIClientWnd, WM_MDITILE, (WPARAM)MDITILE_VERTICAL, 0);
        break; // End ID_WINDOW_TILEVERTICAL
        
        // Help->About menu option
        case ID_HELP_ABOUT:
            // Launch the About Dialog
            DialogBox( hInst, MAKEINTRESOURCE(ICONPRO_ABOUT_DLG), hWnd, AboutDlgProc );
        break;

        case ID_HELP_CONTENTS:
                WinHelp( hWnd, szHelpFileName, HELP_CONTENTS, 0 );
        break;
    }
    return 0l;
}
/* End OnCommand() *********************************************************/



/****************************************************************************
*
*     FUNCTION: AboutDlgProc
*
*     PURPOSE:  Handles messages for About Dialog
*
*     PARAMS:   HWND   hWnd    - This window
*               UINT   Msg     - Which message?
*               WPARAM wParam  - message parameter
*               LPARAM lParam  - message parameter
*
*     RETURNS:  BOOL - depends on message
*
* History:
*                July '95 - Created
*
\****************************************************************************/
BOOL CALLBACK AboutDlgProc( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam )
{
    switch( Msg )
    {
        case WM_INITDIALOG:
        break;

        case WM_CLOSE:
            PostMessage( hWnd, WM_COMMAND, IDCANCEL, 0l );
        break;

        case WM_COMMAND:
            switch( LOWORD(wParam) )
            {
                case IDOK:
                    EndDialog( hWnd, TRUE );
                break;

                case IDCANCEL:
                    EndDialog( hWnd, FALSE );
                break;

            }
        break;
        default:
            return FALSE;
        break;
    }
    return TRUE;
}
/* End AboutDlgProc() ******************************************************/



/****************************************************************************
*
*     FUNCTION: CreateNewMDIChildWindow
*
*     PURPOSE:  Creates and shows a new MDI child window
*
*     PARAMS:   LPSTR  szTitle - The title for the new window
*               LPVOID lpData  - Data to attach to the window (icon info)
*
*     RETURNS:  HWND - Handle to the new MDI child window
*
* History:
*                July '95 - Created
*
\****************************************************************************/
HWND CreateNewMDIChildWindow( LPTSTR szTitle, LPVOID lpData )
{
    HWND    hReturnWnd;

    // Create the MDI child window
    hReturnWnd = CreateMDIWindow( szChildClassName, szTitle, 0,
                    CW_USEDEFAULT, CW_USEDEFAULT, WINDOW_WIDTH, WINDOW_HEIGHT,
                    hMDIClientWnd, hInst, (LPARAM)lpData );
    // Show it
    ShowWindow( hReturnWnd, SW_SHOW );
    return hReturnWnd;
}
/* End CreateNewMDIChildWindow() ********************************************/



/****************************************************************************
*
*     FUNCTION: GetOpenIconFileName
*
*     PURPOSE:  Prompts user for the filename for opening
*
*     PARAMS:   LPSTR   szFileName     - Buffer to receive name of file
*               UINT    FilterStringID - ID of filter string
*               LPCTSTR szTitle        - Title for the Dialog
*
*     RETURNS:  BOOL - TRUE for success, FALSE for failure
*
* History:
*                July '95 - Created
*
\****************************************************************************/
BOOL GetOpenIconFileName( LPTSTR szFileName, UINT FilterStringID, LPCTSTR szTitle )
{
    OPENFILENAME    ofn;
    UINT            i, cbString;
    TCHAR        	chReplace;
    TCHAR        	szFilter[256];

    // Get the filter string
    if ((cbString = LoadString( hInst, FilterStringID, szFilter, sizeof(szFilter))) == 0 ) 
        return FALSE;
    // Replace the wildcard with NULL
    chReplace = szFilter[cbString - 1]; /* retrieve wildcard */
    for (i = 0; szFilter[i] != '\0'; i++) 
    {
        if (szFilter[i] == chReplace)
            szFilter[i] = '\0';
    }

    // Fill out the OPENFILENAME struct
    ZeroMemory( &ofn, sizeof( OPENFILENAME ) );
    ofn.lStructSize = sizeof( OPENFILENAME );
    ofn.hwndOwner = hWndMain;
    ofn.hInstance = hInst;
    lstrcpy( szFileName, TEXT("") );
    ofn.lpstrFile = szFileName;
    ofn.nMaxFile = MAX_PATH;
    ofn.Flags = OFN_FILEMUSTEXIST;
    ofn.lpstrFilter = szFilter;
    ofn.lpstrTitle = szTitle;

    // Use the common dialog
    return GetOpenFileName( &ofn );
}
/* End GetOpenIconFileName() ***********************************************/



/****************************************************************************
*
*     FUNCTION: GetSaveIconFileName
*
*     PURPOSE:  Prompts user for the filename for saving
*
*     PARAMS:   LPSTR   szFileName     - Buffer to receive name of file
*               UINT    FilterStringID - ID of filter string
*               LPCTSTR szTitle        - Title for the Dialog
*
*     RETURNS:  BOOL - TRUE for success, FALSE for failure
*
* History:
*                July '95 - Created
*
\****************************************************************************/
BOOL GetSaveIconFileName( LPTSTR szFileName, UINT FilterStringID, LPCTSTR szTitle )
{
    OPENFILENAME    ofn;
    UINT            i, cbString;
    TCHAR        	chReplace;
    TCHAR        	szFilter[256];

    // Get the filter string
    if ((cbString = LoadString( hInst, FilterStringID, szFilter, sizeof(szFilter))) == 0 ) 
        return FALSE;
    // Replace the wildcard with NULL
    chReplace = szFilter[cbString - 1]; /* retrieve wildcard */
    for (i = 0; szFilter[i] != '\0'; i++) 
    {
        if (szFilter[i] == chReplace)
            szFilter[i] = '\0';
    }

    // Fill out the OPENFILENAME struct
    ZeroMemory( &ofn, sizeof( OPENFILENAME ) );
    ofn.lStructSize = sizeof( OPENFILENAME );
    ofn.hwndOwner = hWndMain;
    ofn.hInstance = hInst;
    lstrcpy( szFileName, TEXT("") );
    ofn.lpstrFile = szFileName;
    ofn.nMaxFile = MAX_PATH;
    ofn.Flags = OFN_OVERWRITEPROMPT;
    ofn.lpstrFilter = szFilter;
    ofn.lpstrDefExt = TEXT("ICO");
    ofn.lpstrTitle = szTitle;

    // Use the common dialog
    return GetSaveFileName( &ofn );
}
/* End GetSaveIconFileName() ***********************************************/



/****************************************************************************
*
*     FUNCTION: UpdateMenuState
*
*     PURPOSE:  Updates states of menu items (called on menu activation)
*
*     PARAMS:   HWND  hWnd  - Handle to the window
*               HMENU hMenu - Handle to the menu
*
*     RETURNS:  BOOL - TRUE for success, FALSE for failure
*
* History:
*                July '95 - Created
*
\****************************************************************************/
BOOL UpdateMenuState( HWND hWnd, HMENU hMenu )
{
    UINT    nEnableFlag, nNumFormats;
    HWND    hWndActive;

    // Get a handle to the active MDI child window
    hWndActive=(HWND)SendMessage( hMDIClientWnd, WM_MDIGETACTIVE, 0, 0 );
    // Find out how many icon image formats it holds
    nNumFormats = SendMessage( hWndActive, WM_COMMAND, ID_GETNUMFORMATS, 0 );
    // Do we actually have an active window?
    if( hWndActive == NULL )
    {
        // No active MDI child...
        EnableMenuItem( hMenu, ID_FILE_NEW, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_OPEN, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_EXTRACT, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_CLOSE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_FILE_SAVE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_FILE_SAVEAS, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_F_EXIT, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_EDIT_COPY, MF_BYCOMMAND| MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_PASTE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_STRETCHPASTE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_ADDFORMAT, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_IMPORTBMP, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_STRETCHIMPORTBMP, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_EXPORTBMP, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_REMOVEFORMAT, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_WINDOW_ARRANGEICONS, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_WINDOW_CASCADE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_WINDOW_TILE, MF_BYCOMMAND | MF_GRAYED );
        EnableMenuItem( hMenu, ID_WINDOW_TILEVERTICAL, MF_BYCOMMAND | MF_GRAYED );
    }
    else
    {
        // We have an active MDI child...
        EnableMenuItem( hMenu, ID_FILE_NEW, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_OPEN, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_EXTRACT, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_FILE_CLOSE, MF_BYCOMMAND | MF_ENABLED );
        nEnableFlag = (BOOL)SendMessage( hWndActive, WM_COMMAND, ID_HASFILECHANGED, 0 ) ? MF_ENABLED : MF_GRAYED;
        EnableMenuItem( hMenu, ID_FILE_SAVE, MF_BYCOMMAND | nEnableFlag );
        EnableMenuItem( hMenu, ID_FILE_SAVEAS, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_F_EXIT, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_EDIT_COPY, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        if( IsClipboardFormatAvailable( CF_DIB ) )
        {
            EnableMenuItem( hMenu, ID_EDIT_PASTE, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
            EnableMenuItem( hMenu, ID_EDIT_STRETCHPASTE, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        }
        else
        {
            EnableMenuItem( hMenu, ID_EDIT_PASTE, MF_BYCOMMAND | MF_GRAYED );
            EnableMenuItem( hMenu, ID_EDIT_STRETCHPASTE, MF_BYCOMMAND | MF_GRAYED );
        }
        EnableMenuItem( hMenu, ID_EDIT_IMPORTBMP, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_STRETCHIMPORTBMP, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_EXPORTBMP, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        EnableMenuItem( hMenu, ID_EDIT_ADDFORMAT, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_EDIT_REMOVEFORMAT, MF_BYCOMMAND | (nNumFormats>0)?MF_ENABLED:MF_GRAYED );
        EnableMenuItem( hMenu, ID_WINDOW_ARRANGEICONS, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_WINDOW_CASCADE, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_WINDOW_TILE, MF_BYCOMMAND | MF_ENABLED );
        EnableMenuItem( hMenu, ID_WINDOW_TILEVERTICAL, MF_BYCOMMAND | MF_ENABLED );
    }
    return TRUE;
}
/* End UpdateMenuState() ***************************************************/



/****************************************************************************
*
*  FUNCTION   : QueryCloseAllChildren()
*
*  PURPOSE    : Asks the child windows if it is ok to close up app. Nothing
*               is destroyed at this point. The z-order is not changed.
*
*  PARAMS:     : none
*
*
*  RETURNS    : TRUE - If all children agree to the query.
*               FALSE- If any one of them disagrees.
*
\***************************************************************************/
BOOL QueryCloseAllChildren( void )
{
    register HWND hwndT;

    for( hwndT = GetWindow(hMDIClientWnd, GW_CHILD); hwndT; hwndT = GetWindow (hwndT, GW_HWNDNEXT) )
    {
        if( GetWindow( hwndT, GW_OWNER ) )
            continue;

        if( SendMessage( hwndT, WM_CLOSE, 0, 0L ) )
            return FALSE;
    }
    return TRUE;
}
/* End QueryCloseAllChildren() **********************************************/