My notepad (IMITATING windows Notepad program) program source code

Last Update:2018-12-05 Source: Internet

Author: User

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A small part of the code in the source program:File Name: mynotepad. cpp

// MyNotepad.cpp: Defines the entry point for the application. 
// 
#include "stdafx.h" 
 #include "resource.h" 
#include "MyNotepad.h" 
#include "PopFile.h" 
#include "PopFont.h" 
#include "PopFind.h" 
#include "ErrorMessage.h" 
#include "GetDllVersion.h" 
 LONG 
OnLineWrap (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); 
 // Message mapping and processing function comparison table. 
struct MSGMAP_ENTRY _messageEntries [] = 
{ 
WM_CREATE, OnCreate, 
WM_DESTROY, OnDestroy, 
WM_SIZE, OnSize, 
WM_SETFOCUS, OnSetFocus, 
WM_CLOSE, OnClose, 
WM_COMMAND, OnCommand 
}; 
// COMMAND-ID processing comparison table. 
struct MSGMAP_ENTRY _commandEntries [] = 
{IDM_ABOUT, OnAbout, 
 IDM_FILE_NEW, OnFileNew, 
IDM_FILE_OPEN, OnFileOpen, 
IDM_FILE_SAVE, OnFileSave, 
IDM_FILE_SAVE_AS, OnFileSaveAs, 
IDM_EDIT_FIND, OnEditFind, 
IDM_EDIT_FIND_NEXT, OnEditFindNext, 
IDM_EDIT_FIND_REPLACE, OnEditFindReplace, 
IDM_DATATIME, OnDataTime, 
IDM_APP_EXIT, OnAppExit, 
IDM_FORMAT_FONT, OnFormatFont, 
IDM_EDIT_UNDO, OnEditUndo, 
IDM_EDIT_CUT, OnEditCut, 
IDM_EDIT_COPY, OnEditCopy, 
IDM_EDIT_PASTE, OnEditPaste, 
IDM_EDIT_CLEAR, OnEditClear, 
IDM_EDIT_SELECT_ALL, OnEditSelectAll, 
IDM_STATIC, OnStatic, 
IDM_LINE_WRAP, OnLineWrap 
}; 
 void SetStatusText (HWND hWndEdit, HWND hWndStatus); 
// Edit control window subclass. 
LRESULT 
CALLBACK 
EditSubWndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); 
 // Global Variables: 
HINSTANCE _hInst; // current instance 
TCHAR _szAppName [MAX_LOADSTRING]; // Program name. 
TCHAR _szFileName [MAX_PATH]; // File name. 
TCHAR _szTitleName [MAX_PATH]; // Program title. 
HWND _hDlgModeless; // Find dialog handle. 
HWND _hWndEdit; // Edit window handle. 
HWND _hWndStatus; // The handle of the status bar window. 
UINT _messageFindReplace; // Find dialog ID. 
BOOL _bNeedSave; // The file needs to be saved. 
WNDPROC _wpOrigEditProc; // The original EDIT control window procedure function address. 
 int 
APIENTRY 
WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) 
{ 
MSG msg; 
HWND hWnd; 
HACCEL hAccel; 
INITCOMMONCONTROLSEX cc; // General control class information structure. 
 cc.dwSize = sizeof (INITCOMMONCONTROLSEX); 
cc.dwICC = ICC_BAR_CLASSES; // The status bar class. 
 if (GetDllVersion (TEXT ("comctl32.dll")) <PACKVERSION (4,71)) 
{ 
MessageBox (NULL, TEXT ("comctl32.dll Version <4.71"), NULL, MB_OK); 
return FALSE; 
} 
 if (! InitCommonControlsEx (& cc)) 
{ 
MessageBox (NULL, TEXT ("InitCommonControlsEx ()"), NULL, MB_OK); 
return FALSE; 
} 
 MyRegisterClass (hInstance); 
hWnd = InitInstance (hInstance, nCmdShow); 
if (! hWnd) return FALSE; 
 hAccel = LoadAccelerators (hInstance, MAKEINTRESOURCE (IDR_ACCELERATOR1)); 
// Main message loop: 
while (GetMessage (& msg, NULL, 0, 0)) 
{ 
if (_hDlgModeless == NULL ||! IsDialogMessage (_hDlgModeless, & msg)) 
{ 
if (! TranslateAccelerator (hWnd, hAccel, & msg)) 
{ 
TranslateMessage (& msg); 
DispatchMessage (& msg); 
} 
} 
} 
 return msg.wParam; 
} 
 ATOM 
MyRegisterClass (HINSTANCE hInstance) 
{ 
// Load the text string of the application title bar. 
LoadString (hInstance, IDS_APP_TITLE, _szAppName, MAX_LOADSTRING); 
 WNDCLASSEX wcex; 
 wcex.cbSize = sizeof (WNDCLASSEX); 
wcex.style = CS_HREDRAW | CS_VREDRAW; 
wcex.lpfnWndProc = (WNDPROC) WndProc; 
wcex.cbClsExtra = 0; 
wcex.cbWndExtra = 0; 
wcex.hInstance = hInstance; 
wcex.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE (IDI_ICON1)); 
wcex.hCursor = LoadCursor (NULL, IDC_ARROW); 
wcex.hbrBackground = (HBRUSH) COLOR_WINDOW + 1; 
wcex.lpszMenuName = NULL; 
wcex.lpszClassName = _szAppName; 
wcex.hIconSm = NULL; 
 return RegisterClassEx (& wcex); 
} 
 HWND 
InitInstance (HINSTANCE hInstance, int nCmdShow) 
{ 
HWND hWnd; 
_hInst = hInstance; 
 hWnd = CreateWindow ( 
_szAppName, // windows class name 
_szAppName, // windows title. 
WS_OVERLAPPEDWINDOW, 
CW_USEDEFAULT, 
CW_USEDEFAULT, 
CW_USEDEFAULT, 
CW_USEDEFAULT, 
NULL, 
LoadMenu (hInstance, MAKEINTRESOURCE (IDR_MENU1)), 
hInstance, NULL); 
 if (! hWnd) return NULL; 
 ShowWindow (hWnd, nCmdShow); 
UpdateWindow (hWnd); 
 return hWnd; 
} 
 LRESULT 
CALLBACK 
WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
int i; 
 for (i = 0; i <dim (_messageEntries); i ++) 
{ 
if (message == _messageEntries [i] .nMessage) 
return ((* _messageEntries [i] .pfn) (hWnd, message, wParam, lParam)); 
} 
 // Process the find and replace dialog message. 
if (message == _messageFindReplace) 
{ 
PopFindReplaceText (_hWndEdit, (LPFINDREPLACE) lParam); 
SetForegroundWindow (hWnd); // Set the foreground window. 
} 
 return (DefWindowProc (hWnd, message, wParam, lParam)); 
} 
 LONG 
OnCommand (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
int i; 
 for (i = 0; i <dim (_commandEntries); i ++) 
{ 
if (LOWORD (wParam) == _commandEntries [i] .nMessage) 
return ((* _commandEntries [i] .pfn) (hWnd, message, wParam, lParam)); 
} 
 // Process edit control commands. 
if (lParam && LOWORD (wParam) == ID_EDIT) 
{ 
MessageOperationEdit (_hWndEdit, wParam, & _bNeedSave); 
} 
 return (DefWindowProc (hWnd, message, wParam, lParam)); 
} 
 // Process window messages. 
LONG 
OnCreate (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (! CreateEditText (hWnd, wParam, lParam)) return 0; 
if (! InitStatus (hWnd)) return 0; 
 _wpOrigEditProc = (WNDPROC) SetWindowLong (_hWndEdit, GWL_WNDPROC, (LONG) EditSubWndProc); 
 // Set the maximum number of characters (hard limit) that the edit control can enter. 
SendMessage (_hWndEdit, EM_LIMITTEXT, MAX_CHAR_COUNT, 0L); 
PopFileInitialize (hWnd); 
PopFontInitialize (_hWndEdit); 
// Register a custom message (for find and replace dialogs). 
_messageFindReplace = RegisterWindowMessage (FINDMSGSTRING); 
DoCaption (hWnd, _szTitleName); 
 return 1; 
} 
 LRESULT 
CALLBACK 
EditSubWndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
switch (message) 
{ 
case WM_LBUTTONUP: // Left mouse button release. 
SetStatusText (_hWndEdit, _hWndStatus); 
break; 
/ * case EM_LINEFROMCHAR: 
{ 
TCHAR szBuffer [MAX_PATH]; 
wsprintf (szBuffer, TEXT ("% d"), wParam); 
MessageBox (NULL, szBuffer, NULL, MB_OK); 
} 
break; 
* / 
} 
return CallWindowProc (_wpOrigEditProc, hWnd, message, wParam, lParam); 
/ * 
int ich = -1; 
int iv; 
 iv = SendMessage (_hWndEdit, EM_LINEFROMCHAR, wParam, 0); 
wsprintf (szBuffer, TEXT ("% d"), iv); 
MessageBox (NULL, szBuffer, NULL, MB_OK); 
 return 1; * / 
} 
 LONG 
OnSize (HWND hWnd, UINT wMsg, UINT wParam, LONG lParam) 
{ 
RECT rect; 
LONG cy; 
 GetClientRect (_hWndStatus, & rect); // Get the rectangular size of the status bar window. 
cy = rect.bottom-rect.top; // Calculate the rectangular width of the status bar window. 
 MoveWindow (_hWndEdit, 0, 0, LOWORD (lParam), HIWORD (lParam)-cy, TRUE); 
SendMessage (_hWndStatus, WM_SIZE, wParam, lParam); 
return 1; 
} 
 LONG 
OnSetFocus (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
SetFocus (_hWndEdit); 
return 1; 
} 
 LONG 
OnClose (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (_bNeedSave && IDCANCEL == AskAboutSave (hWnd, _szTitleName)) return 0; 
return DestroyWindow (hWnd); 
} 
 LONG 
OnDestroy (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
PopFontDeinitialize (); // Delete the font. 
PostQuitMessage (0); 
return 1; 
} 
 // Process Command message. 
LONG 
OnAbout (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
DialogBox (_hInst, TEXT ("AboutBox"), hWnd, AboutDlgProc); 
return 1; 
} 
 LONG 
OnLineWrap (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
SendMessage (_hWndEdit, EM_LINEFROMCHAR, (WPARAM) 1, 0); 
 return 1; 
} 
 LONG 
OnFileNew (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (_bNeedSave && IDCANCEL == AskAboutSave (hWnd, _szTitleName)) 
return 0; 
 SetWindowText (_hWndEdit, TEXT ("/ 0")); // Clear the title bar text. 
_szFileName [0] = TEXT ('/ 0'); // Simple empty string. 
_szTitleName [0] = TEXT ('/ 0'); 
DoCaption (hWnd, _szTitleName); 
_bNeedSave = FALSE; 
 return 1; 
} 
 LONG 
OnFileOpen (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (_bNeedSave && IDCANCEL == AskAboutSave (hWnd, _szTitleName)) 
return 0; 
 if (PopFileOpenDlg (hWnd, _szFileName, _szTitleName)) 
{ 
if (! PopFileRead (_hWndEdit, _szFileName)) 
{ 
OkMessage (hWnd, TEXT ("Cannot open file% s!"), _SzTitleName); 
_szFileName [0] = TEXT ('/ 0'); 
_szTitleName [0] = TEXT ('/ 0'); 
} 
} 
DoCaption (hWnd, _szTitleName); 
_bNeedSave = FALSE; 
 return 1; 
} 
 LONG 
OnFileSave (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (_szFileName [0]) 
{ 
if (PopFileWrite (_hWndEdit, _szFileName)) 
{ 
_bNeedSave = FALSE; 
return 1; 
} 
else 
{ 
OkMessage (hWnd, TEXT ("Cannot save% s"), _szTitleName); 
} 
} 
return OnFileSaveAs (hWnd, message, wParam, lParam); 
} 
 LONG 
OnFileSaveAs (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (PopFileSaveDlg (hWnd, _szFileName, _szTitleName)) 
{ 
DoCaption (hWnd, _szTitleName); 
if (PopFileWrite (_hWndEdit, _szFileName)) 
{ 
_bNeedSave = FALSE; 
return 1; 
} 
else 
{ 
OkMessage (hWnd, TEXT ("Cannot save% s"), _szTitleName); 
} 
} 
return 0; 
} 
 LONG 
OnEditFind (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
_hDlgModeless = PopFindDlg (hWnd); 
return 1; 
} 
 LONG 
OnEditFindNext (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (_hDlgModeless! = NULL) 
{ 
return PopFindNextText (_hWndEdit); 
} 
return 0; 
} 
 LONG 
OnEditFindReplace (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
_hDlgModeless = PopReplaceDlg (hWnd); 
return 1; 
} 
 LONG 
OnDataTime (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
TCHAR szBuffer [MAX_PATH]; 
SYSTEMTIME systemtime; 
 GetLocalTime (& systemtime); 
wsprintf (szBuffer, TEXT ("% d:% d% d-% d-% d"), systemtime.wHour, 
systemtime.wMinute, systemtime.wYear, 
systemtime.wMonth, systemtime.wDay); 
 return SendMessage (_hWndEdit, EM_REPLACESEL, TRUE, (LPARAM) szBuffer); 
} 
 LONG 
OnAppExit (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (hWnd, WM_CLOSE, wParam, lParam); 
} 
 LONG 
OnFormatFont (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
if (PopFontChooseFont (hWnd)) 
PopFontSetFont (_hWndEdit); 
return 1; 
} 
 LONG 
OnEditUndo (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, WM_UNDO, 0, 0); 
} 
 LONG 
OnEditCut (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, WM_CUT, 0, 0); 
} 
 LONG 
OnEditCopy (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, WM_COPY, 0, 0); 
} 
 LONG 
OnEditPaste (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, WM_PASTE, 0, 0); 
} 
 LONG 
OnEditClear (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, WM_CLEAR, 0, 0); 
} 
 LONG 
OnEditSelectAll (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return SendMessage (_hWndEdit, EM_SETSEL, 0, -1); 
} 
 LONG 
OnStatic (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
return 1; 
} 
 void 
DoCaption (HWND hWnd, TCHAR * szTitleName) 
{ 
// Set the form title bar. 
TCHAR szCaption [64 + MAX_PATH]; 
wsprintf (szCaption, TEXT ("% s-% s"), szTitleName [0]? szTitleName: UNTITLED, _szAppName); 
SetWindowText (hWnd, szCaption); 
} 
 short 
AskAboutSave (HWND hWnd, TCHAR * szTitleName) 
{ 
// About the save dialog. 
TCHAR szBuffer [64 + MAX_PATH]; 
int iRetum = 0; 
 if (szTitleName [0] == TEXT ('/ 0')) 
{ 
wsprintf (szBuffer, TEXT ("The text of the file% s has changed./nWant to save the file?"), UNTITLED); 
iRetum = MessageBox (hWnd, szBuffer, _szAppName, MB_YESNOCANCEL | MB_ICONQUESTION); 
if (iRetum == IDYES) 
{ 
if (! SendMessage (hWnd, WM_COMMAND, IDM_FILE_SAVE_AS, 0)) 
iRetum = IDCANCEL; 
} 
} 
else 
{ 
wsprintf (szBuffer, TEXT ("The text of the file% s has changed./nWant to save the file?"), szTitleName); 
iRetum = MessageBox (hWnd, szBuffer, _szAppName, MB_YESNOCANCEL | MB_ICONQUESTION); 
if (iRetum == IDYES) 
{ 
if (! SendMessage (hWnd, WM_COMMAND, IDM_FILE_SAVE, 0)) 
iRetum = IDCANCEL; 
} 
} 
return iRetum; 
} 
 void 
OkMessage (HWND hWnd, TCHAR * szMessage, TCHAR * szTitleName) 
{ 
TCHAR szBuffer [64 + MAX_PATH]; 
wsprintf (szBuffer, szMessage, szTitleName [0]? szTitleName: UNTITLED); 
MessageBox (hWnd, szBuffer, _szAppName, MB_OK | MB_ICONEXCLAMATION); 
} 
 BOOL 
CALLBACK 
AboutDlgProc (HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
switch (message) 
{ 
case WM_INITDIALOG: 
return TRUE; 
case WM_CLOSE: 
EndDialog (hDlg, 0); 
return TRUE; 
} 
/ * case WM_COMMAND: 
switch (LOWORD (wParam)) 
{ 
case IDOK: 
// case IDCANCEL: 
EndDialog (hDlg, 0); 
return TRUE; 
} 
break; * / 
return FALSE; 
} 
 BOOL 
CreateEditText (HWND hWnd, WPARAM wParam, LPARAM lParam) 
{ 
// Create edit control. 
_hWndEdit = CreateWindow ( 
TEXT ("edit"), 
NULL, 
WS_CHILD | // Sub-form. 
WS_VISIBLE | // Display the window. 
WS_VSCROLL | // Vertical scroll bar. 
WS_HSCROLL | // The horizontal scroll bar. 
ES_LEFT | // Text is left aligned. 
ES_AUTOHSCROLL | // Automatic Scroll text horizontally. 
ES_AUTOVSCROLL | // Automatically scroll text vertically. 
ES_MULTILINE | // Multiline editing. 
ES_NOHIDESEL, // Do not hide the selected text when losing focus. 
0, 0, 0, 0, 
hWnd, 
(HMENU) ID_EDIT, 
((LPCREATESTRUCT) lParam)-> hInstance, NULL); 
 if (! _ hWndEdit) return FALSE; 
 return TRUE; 
} 
 BOOL 
InitStatus (HWND hWnd) 
{ 
RECT rect; 
int i, parts [NUMPARTS]; 
 GetClientRect (hWnd, & rect); 
 for (i = 1; i <= NUMPARTS; i ++) 
parts [i-1] = rect.right / NUMPARTS * i; 
 _hWndStatus = CreateStatusWindow (WS_CHILD | WS_VISIBLE, NULL, hWnd, NULL); 
if (! _hWndStatus) return FALSE; 
 return SendMessage (_hWndStatus, SB_SETPARTS, (WPARAM) NUMPARTS, (LPARAM) parts); 
} 
 void 
SetStatusText (HWND hWndEdit, HWND hWndStatus) 
{ 
// POINT point; 
long iLineCount; 
// long iLength; 
long iOffset; 
TCHAR szBuffer [MAX_LOADSTRING]; 
int iRow; 
 // GetCaretPos (& point); 
// Get the current cursor position in the string. 
// iOffset = SendMessage (hWndEdit, EM_CHARFROMPOS, 0, MAKELPARAM (point.x, point.y)); 
 // iLength = GetWindowTextLength (hWndEdit); // Get the length of the form text (excluding / 0 characters). 
 SendMessage (hWndEdit, EM_SETSEL, (WPARAM) 0, (LPARAM) -1); // All the text is selected. 
 iOffset = SendMessage (hWndEdit, EM_GETSEL, (WPARAM) 0, (WPARAM) 0); 
 iLineCount = SendMessage (hWndEdit, EM_LINEFROMCHAR, (WPARAM) iOffset, (WPARAM) NULL); 
 iRow = SendMessage (hWndEdit, EM_LINELENGTH, iLineCount, 0); 
/ * 
Note: Here you need to get the number of characters in the line where the caret is. There is no processing here. 
* / 
wsprintf (szBuffer, TEXT ("Ln:% d Col:% d,% d"), iLineCount, iOffset, iRow); 
 SendMessage (hWndStatus, SB_SETTEXT, 1, (LPARAM) szBuffer); 
} 
 void 
MessageOperationEdit (HWND hWndEdit, WPARAM wParam, BOOL * bNeedSave) 
{ 
/ * 
Process Edit control message function. 
BOOL * bNeedSave text needs to save the mark. 
* / 
switch (HIWORD (wParam)) 
{ 
case EN_UPDATE: // The content of edit control has been changed. 
* bNeedSave = TRUE; 
break; 
case EN_ERRSPACE: // Edit control operation has exceeded the middle. 
case EN_MAXTEXT: // Edit control runs beyond the middle when inserted. 
MessageBox (hWndEdit, TEXT ("Edit input has exceeded the space!"), 
_szAppName, MB_OK | MB_ICONSTOP); 
break; 
} 
}

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