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-
- #include <windows.h>
- #include <commctrl.h>
- #include "delcol.h"
-
-
- #if defined (WIN32)
- #define IS_WIN32 TRUE
- #else
- #define IS_WIN32 FALSE
- #endif
-
- #define IS_NT IS_WIN32 && (BOOL)(GetVersion() < 0x80000000)
- #define IS_WIN32S IS_WIN32 && (BOOL)(!(IS_NT) && (LOBYTE(LOWORD(GetVersion()))<4))
- #define IS_WIN95 (BOOL)(!(IS_NT) && !(IS_WIN32S)) && IS_WIN32
-
- HINSTANCE hInst; // current instance
-
- LPCTSTR lpszAppName = "MyApp";
- LPCTSTR lpszTitle = "ListView_DeleteColumn()";
-
-
- BOOL RegisterWin95( CONST WNDCLASS* lpwc );
-
-
- int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
- LPTSTR lpCmdLine, int nCmdShow)
- {
- MSG msg;
- HWND hWnd;
- WNDCLASS wc;
-
- wc.style = CS_HREDRAW | CS_VREDRAW;
- wc.lpfnWndProc = (WNDPROC)WndProc;
- wc.cbClsExtra = 0;
- wc.cbWndExtra = 0;
- wc.hInstance = hInstance;
- wc.hIcon = LoadIcon (hInstance, lpszAppName);
- wc.hCursor = LoadCursor(NULL, IDC_ARROW);
- wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
- wc.lpszMenuName = lpszAppName;
- wc.lpszClassName = lpszAppName;
-
- if ( IS_WIN95 )
- {
- if ( !RegisterWin95( &wc ) )
- return( FALSE );
- }
- else if ( !RegisterClass( &wc ) )
- return( FALSE );
-
- hInst = hInstance;
-
- hWnd = CreateWindow( lpszAppName,
- lpszTitle,
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, 0,
- CW_USEDEFAULT, 0,
- NULL,
- NULL,
- hInstance,
- NULL
- );
-
- if ( !hWnd )
- return( FALSE );
-
- ShowWindow( hWnd, nCmdShow );
- UpdateWindow( hWnd );
-
- while( GetMessage( &msg, NULL, 0, 0) )
- {
- TranslateMessage( &msg );
- DispatchMessage( &msg );
- }
-
- return( msg.wParam );
- }
-
-
- BOOL RegisterWin95( CONST WNDCLASS* lpwc )
- {
- WNDCLASSEX wcex;
-
- wcex.style = lpwc->style;
- wcex.lpfnWndProc = lpwc->lpfnWndProc;
- wcex.cbClsExtra = lpwc->cbClsExtra;
- wcex.cbWndExtra = lpwc->cbWndExtra;
- wcex.hInstance = lpwc->hInstance;
- wcex.hIcon = lpwc->hIcon;
- wcex.hCursor = lpwc->hCursor;
- wcex.hbrBackground = lpwc->hbrBackground;
- wcex.lpszMenuName = lpwc->lpszMenuName;
- wcex.lpszClassName = lpwc->lpszClassName;
-
- // Added elements for Windows 95.
- //...............................
- wcex.cbSize = sizeof(WNDCLASSEX);
- wcex.hIconSm = LoadImage(wcex.hInstance, lpwc->lpszClassName,
- IMAGE_ICON, 16, 16,
- LR_DEFAULTCOLOR );
-
- return RegisterClassEx( &wcex );
- }
-
- // Return TRUE if a column exists.
- //................................
- BOOL ColumnExists( HWND hList, int nCol )
- {
- LV_COLUMN lvc;
-
- // Retrieve the width of a column to determine if it exists.
- //..........................................................
- lvc.mask = LVCF_WIDTH;
-
- return( ListView_GetColumn( hList, nCol, &lvc ) );
- }
-
- // Determine the number of columns in the list view.
- //..................................................
- int GetNumColumns( HWND hList )
- {
- int nNum = 0;
-
- while( ColumnExists( hList, nNum ) )
- nNum++;
-
- return( nNum );
- }
-
-
- LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
- {
- static HWND hList = NULL;
-
- switch( uMsg )
- {
- case WM_CREATE :
- {
- InitCommonControls();
-
- // Create the list view.
- //......................
- hList = CreateWindowEx( 0, WC_LISTVIEW, "",
- WS_CHILD | WS_VISIBLE | LVS_REPORT,
- 10, 100, 100, 100,
- hWnd,
- (HMENU)1,
- hInst,
- NULL);
- }
- break;
-
- case WM_SIZE :
- if ( hList )
- MoveWindow( hList, 0, 0, LOWORD( lParam ), HIWORD( lParam ), FALSE );
-
- if ( wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED )
- ListView_RedrawItems( hList, 0, ListView_GetItemCount( hList ) );
- break;
-
- case WM_COMMAND :
- switch( LOWORD( wParam ) )
- {
- case IDM_NEWCOLUMN :
- {
- LV_COLUMN col;
- char szName[40];
- int nNumCols = GetNumColumns( hList );
-
- // Add a new column to the list view.
- //...................................
- wsprintf( szName, "Column %d", nNumCols+1 );
-
- col.mask = LVCF_FMT | LVCF_SUBITEM |
- LVCF_WIDTH | LVCF_TEXT;
- col.fmt = LVCFMT_LEFT;
- col.cx = 100;
- col.pszText = szName;
- col.iSubItem = nNumCols;
-
- ListView_InsertColumn( hList, nNumCols, &col );
- }
- break;
-
- case IDM_RENCOL :
- case IDM_RENFIELD :
- {
- LV_COLUMN col;
- int nCol = 0;
- char szName[40];
-
- while ( ColumnExists( hList, nCol ) )
- {
- col.mask = LVCF_TEXT;
- col.pszText = szName;
-
- if ( LOWORD( wParam ) == IDM_RENCOL )
- wsprintf( szName, "Column %d", nCol+1 );
- else
- wsprintf( szName, "Field %d", nCol+1 );
-
- ListView_SetColumn( hList, nCol, &col );
-
- nCol++;
- }
- }
- break;
-
- case IDM_DELETE :
- // Delete the last column from the list view.
- //...........................................
- ListView_DeleteColumn( hList, GetNumColumns( hList )-1 );
- break;
-
- case IDM_ABOUT :
- DialogBox( hInst, "AboutBox", hWnd, (DLGPROC)About );
- break;
-
- case IDM_EXIT :
- DestroyWindow( hWnd );
- break;
- }
- break;
-
- case WM_DESTROY :
- PostQuitMessage(0);
- break;
-
- default :
- return( DefWindowProc( hWnd, uMsg, wParam, lParam ) );
- }
-
- return( 0L );
- }
-
-
- LRESULT CALLBACK About( HWND hDlg,
- UINT message,
- WPARAM wParam,
- LPARAM lParam)
- {
- switch (message)
- {
- case WM_INITDIALOG:
- return (TRUE);
-
- case WM_COMMAND:
- if ( LOWORD(wParam) == IDOK
- || LOWORD(wParam) == IDCANCEL)
- {
- EndDialog(hDlg, TRUE);
- return (TRUE);
- }
- break;
- }
-
- return (FALSE);
- }
-