www.gusucode.com > VC 编写记事本程序-源码程序 > VC 编写记事本程序-源码程序/code/vc实现的记事本/main.cpp
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// main.cpp: implementation of the Cmain class.
//
//////////////////////////////////////////////////////////////////////
#include "main.h"
#include <windows.h>
#include <commdlg.h>
#include "resource.h"
//////////////////////////////////////////////////////
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
BOOL CALLBACK AboutDlgProc (HWND, UINT, WPARAM, LPARAM) ;
// FILE.C里的函数：
void FileInitialize (HWND) ;
BOOL FileOpenDlg (HWND, PTSTR, PTSTR) ;
BOOL FileSaveDlg (HWND, PTSTR, PTSTR) ;
BOOL FileRead (HWND, PTSTR) ;
BOOL FileWrite (HWND, PTSTR) ;
static HWND hDlgModeless ;
static TCHAR szAppName[] = TEXT ("Notepad") ;
/////////////////////////////////////////////////////////////////
//WINMAIN函数
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
MSG msg ;
HWND hwnd ;
HACCEL hAccel ;
WNDCLASS wndclass ;
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (hInstance, szAppName) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = szAppName ;
wndclass.lpszClassName = szAppName ;//定义窗口
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}//注册窗口
hwnd = CreateWindow (szAppName, NULL,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, szCmdLine) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ; //建立显示窗口
hAccel = LoadAccelerators (hInstance, szAppName) ;//快捷方式
while (GetMessage (&msg, NULL, 0, 0))
{
if (hDlgModeless == NULL || !IsDialogMessage (hDlgModeless, &msg))
{
if (!TranslateAccelerator (hwnd, hAccel, &msg))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
}
}//消息循环
return msg.wParam ;
}
////////////////////////////////////////////////////////////////
//标题函数
void DoCaption (HWND hwnd, TCHAR * szTitleName)
{
TCHAR szCaption[64 + MAX_PATH] ;
wsprintf (szCaption, TEXT ("%s - %s"),szAppName,
szTitleName[0] ? szTitleName : NOTEPAD) ;
SetWindowText (hwnd, szCaption) ;
}
//////////////////////////////////////////////////////////////////
//确定窗口
void OkMessage (HWND hwnd, TCHAR * szMessage, TCHAR * szTitleName)
{
TCHAR szBuffer[64 + MAX_PATH] ;
wsprintf (szBuffer, szMessage, szTitleName[0] ? szTitleName : NOTEPAD) ;
MessageBox (hwnd, szBuffer, szAppName, MB_OK | MB_ICONEXCLAMATION) ;
}
/////////////////////////////////////////////////////////////////
//确定文件保存
short AskAboutSave (HWND hwnd, TCHAR * szTitleName)
{
TCHAR szBuffer[64 + MAX_PATH] ;
int iReturn ;
wsprintf (szBuffer, TEXT ("保存现在的文件 %s?"),
szTitleName[0] ? szTitleName : NOTEPAD) ;
iReturn = MessageBox (hwnd, szBuffer, szAppName,
MB_YESNOCANCEL | MB_ICONQUESTION) ;
if (iReturn == IDYES)
if (!SendMessage (hwnd, WM_COMMAND, IDM_FILE_SAVE, 0))
iReturn = IDCANCEL ;
return iReturn ;
}
/////////////////////////////////////////////////////////////////
//窗口过程函数
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static BOOL bNeedSave = FALSE ;
static HINSTANCE hInst ;
static HWND hwndEdit ;
static int iOffset ;
static TCHAR szFileName[MAX_PATH], szTitleName[MAX_PATH] ;
static UINT messageFindReplace ;
int iSelBeg, iSelEnd, iEnable ;
switch (message)
{
case WM_CREATE:
hInst = ((LPCREATESTRUCT) lParam) -> hInstance ;
// 创建编辑窗口
hwndEdit = CreateWindow (TEXT ("edit"), NULL,
WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
WS_BORDER | ES_LEFT | ES_MULTILINE |
ES_NOHIDESEL | ES_AUTOHSCROLL | ES_AUTOVSCROLL,
0, 0, 0, 0,
hwnd,(HMENU)EDITID, hInst, NULL) ;
SendMessage (hwndEdit, EM_LIMITTEXT, 32000, 0L) ;
// 初始化命令窗口
FileInitialize (hwnd) ;
messageFindReplace = RegisterWindowMessage (FINDMSGSTRING) ;
DoCaption (hwnd, szTitleName) ;
return 0 ;
case WM_SETFOCUS:
SetFocus (hwndEdit) ;
return 0 ;
case WM_SIZE:
MoveWindow (hwndEdit, 0, 0, LOWORD (lParam), HIWORD (lParam), TRUE) ;
return 0 ;
case WM_INITMENUPOPUP:
switch (lParam)
{
case 1: // 编辑菜单
//处理撤消选项
EnableMenuItem ((HMENU) wParam, IDM_EDIT_UNDO,
SendMessage (hwndEdit, EM_CANUNDO, 0, 0L) ?
MF_ENABLED : MF_GRAYED) ;
// 处理粘贴选项
EnableMenuItem ((HMENU) wParam, IDM_EDIT_PASTE,
IsClipboardFormatAvailable (CF_TEXT) ?
MF_ENABLED : MF_GRAYED) ;
// 处理编辑选项，剪切，复制删除
SendMessage (hwndEdit, EM_GETSEL, (WPARAM) &iSelBeg,
(LPARAM) &iSelEnd) ;
iEnable = iSelBeg != iSelEnd ? MF_ENABLED : MF_GRAYED ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_CUT, iEnable) ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_COPY, iEnable) ;
EnableMenuItem ((HMENU) wParam, IDM_EDIT_CLEAR, iEnable) ;
break ;
}
return 0 ;
case WM_COMMAND://处理菜单命令
// 编辑选项来的消息
if (lParam && LOWORD (wParam) == EDITID)
{
switch (HIWORD (wParam))
{
case EN_UPDATE :
bNeedSave = TRUE ;
return 0 ;
case EN_ERRSPACE :
case EN_MAXTEXT :
MessageBox (hwnd, TEXT ("Edit control out of space."),
szAppName, MB_OK | MB_ICONSTOP) ;
return 0 ;
}
break ;
}
switch (LOWORD (wParam))
{
// 文件选项的消息
case IDM_FILE_NEW:
if (bNeedSave && IDCANCEL == AskAboutSave (hwnd, szTitleName))
return 0 ;
SetWindowText (hwndEdit, TEXT ("\0")) ;
szFileName[0] = '\0' ;
szTitleName[0] = '\0' ;
DoCaption (hwnd, szTitleName) ;
bNeedSave = FALSE ;
return 0 ;
case IDM_FILE_OPEN:
if (bNeedSave && IDCANCEL == AskAboutSave (hwnd, szTitleName))
return 0 ;
if (FileOpenDlg (hwnd, szFileName, szTitleName))
{
if (!FileRead (hwndEdit, szFileName))
{
OkMessage (hwnd, TEXT ("Could not read file %s!"),
szTitleName) ;
szFileName[0] = '\0' ;
szTitleName[0] = '\0' ;
}
}
DoCaption (hwnd, szTitleName) ;
bNeedSave = FALSE ;
return 0 ;
case IDM_FILE_SAVE:
if (szFileName[0])
{
if (FileWrite (hwndEdit, szFileName))
{
bNeedSave = FALSE ;
return 1 ;
}
else
{
OkMessage (hwnd, TEXT ("Could not write file %s"),
szTitleName) ;
return 0 ;
}
}
case IDM_FILE_SAVE_AS:
if (FileSaveDlg (hwnd, szFileName, szTitleName))
{
DoCaption (hwnd, szTitleName) ;
if (FileWrite (hwndEdit, szFileName))
{
bNeedSave = FALSE ;
return 1 ;
}
else
{
OkMessage (hwnd, TEXT ("Could not write file %s"),
szTitleName) ;
return 0 ;
}
}
return 0 ;
case IDM_APP_EXIT:
SendMessage (hwnd, WM_CLOSE, 0, 0) ;
return 0 ;
case IDM_EDIT_UNDO:
SendMessage (hwndEdit, WM_UNDO, 0, 0) ;
return 0 ;
case IDM_EDIT_CUT:
SendMessage (hwndEdit, WM_CUT, 0, 0) ;
return 0 ;
case IDM_EDIT_COPY:
SendMessage (hwndEdit, WM_COPY, 0, 0) ;
return 0 ;
case IDM_EDIT_PASTE:
SendMessage (hwndEdit, WM_PASTE, 0, 0) ;
return 0 ;
case IDM_EDIT_CLEAR:
SendMessage (hwndEdit, WM_CLEAR, 0, 0) ;
return 0 ;
case IDM_EDIT_SELECT_ALL:
SendMessage (hwndEdit, EM_SETSEL, 0, -1) ;
return 0 ;
case IDM_HELP:
OkMessage (hwnd, TEXT (" 帮助文件没有安装!"),
TEXT ("\0")) ;
return 0 ;
case IDM_APP_ABOUT:
DialogBox (hInst, TEXT ("AboutBox"), hwnd,AboutDlgProc) ;
return 0 ;
}
break ;
case WM_CLOSE:
if (!bNeedSave || IDCANCEL != AskAboutSave (hwnd, szTitleName))
DestroyWindow (hwnd) ;
return 0 ;
case WM_QUERYENDSESSION :
if (!bNeedSave || IDCANCEL != AskAboutSave (hwnd, szTitleName))
return 1 ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
/////////////////////////////////////////////////////////////////
////关于对话框
BOOL CALLBACK AboutDlgProc (HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE ;
case WM_COMMAND:
switch (LOWORD (wParam))
{
case IDOK:
EndDialog (hDlg, 0) ;
return TRUE ;
}
break ;
}
return FALSE ;
}