一个简单的文本编辑器。(是在DEV C++下写的）

//头文件//
　　main.h
　　#define CM_FILE_SAVEAS 9072
　　#define CM_FILE_EXIT 9071
　　#define CM_FILE_OPEN 9070
　　#define CM_ABOUT 9069
　　//主程序文件//
　　main.c
　　/*****************************************************/
　　#include <windows.h>
　　#pragma hdrstop
　　#include "Main.h"
　　static char g_szClassName[] = "MyWindowClass";
　　static HINSTANCE g_hInst = NULL;
　　#define IDC_MAIN_TEXT 1001
　　BOOL LoadFile(HWND hEdit, LPSTR pszFileName)
　　{
　　 HANDLE hFile;
　　 BOOL bSuccess = FALSE;
　　 hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
　　 OPEN_EXISTING, 0, 0);
　　 if(hFile != INVALID_HANDLE_VALUE)
　　 {
　　 DWORD dwFileSize;
　　 dwFileSize = GetFileSize(hFile, NULL);
　　 if(dwFileSize != 0xFFFFFFFF)
　　 {
　　 LPSTR pszFileText;
　　 pszFileText = (LPSTR)GlobalAlloc(GPTR, dwFileSize + 1);
　　 if(pszFileText != NULL)
　　 {
　　 DWORD dwRead;
　　 if(ReadFile(hFile, pszFileText, dwFileSize, &dwRead, NULL))
　　 {
　　 pszFileText[dwFileSize] = 0; // Null terminator
　　 if(SetWindowText(hEdit, pszFileText))
　　 bSuccess = TRUE; // It worked!
　　 }
　　 GlobalFree(pszFileText);
　　 }
　　 }
　　 CloseHandle(hFile);
　　 }
　　 return bSuccess;
　　}
　　BOOL SaveFile(HWND hEdit, LPSTR pszFileName)
　　{
　　 HANDLE hFile;
　　 BOOL bSuccess = FALSE;
　　 hFile = CreateFile(pszFileName, GENERIC_WRITE, 0, 0,
　　 CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
　　 if(hFile != INVALID_HANDLE_VALUE)
　　 {
　　 DWORD dwTextLength;
　　 dwTextLength = GetWindowTextLength(hEdit);
　　 if(dwTextLength > 0)// No need to bother if there's no text.
　　 {
　　 LPSTR pszText;
　　 pszText = (LPSTR)GlobalAlloc(GPTR, dwTextLength + 1);
　　 if(pszText != NULL)
　　 {
　　 if(GetWindowText(hEdit, pszText, dwTextLength + 1))
　　 {
　　 DWORD dwWritten;
　　 if(WriteFile(hFile, pszText, dwTextLength, &dwWritten, NULL))
　　 bSuccess = TRUE;
　　 }
　　 GlobalFree(pszText);
　　 }
　　 }
　　 CloseHandle(hFile);
　　 }
　　 return bSuccess;
　　}
　　BOOL DoFileOpenSave(HWND hwnd, BOOL bSave)
　　{
　　 OPENFILENAME ofn;
　　 char szFileName[MAX_PATH];
　　 ZeroMemory(&ofn, sizeof(ofn));
　　 szFileName[0] = 0;
　　 ofn.lStructSize = sizeof(ofn);
　　 ofn.hwndOwner = hwnd;
　　 ofn.lpstrFilter = "Text Files (*.txt)*.txtAll Files (*.*)*.*";
　　 ofn.lpstrFile = szFileName;
　　 ofn.nMaxFile = MAX_PATH;
　　 ofn.lpstrDefExt = "txt";
　　 if(bSave)
　　 {
　　 ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY |
　　 OFN_OVERWRITEPROMPT;
　　 
　　 if(GetSaveFileName(&ofn))
　　 {
　　 if(!SaveFile(GetDlgItem(hwnd, IDC_MAIN_TEXT), szFileName))
　　 {
　　 MessageBox(hwnd, "Save file failed.", "Error",
　　 MB_OK | MB_ICONEXCLAMATION);
　　 return FALSE;
　　 }
　　 }
　　 }
　　 else
　　 {
　　 ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
　　 if(GetOpenFileName(&ofn))
　　 {
　　 if(!LoadFile(GetDlgItem(hwnd, IDC_MAIN_TEXT), szFileName))
　　 {
　　 MessageBox(hwnd, "Load of file failed.", "Error",
　　 MB_OK | MB_ICONEXCLAMATION);
　　 return FALSE;
　　 }
　　 }
　　 }
　　 return TRUE;
　　}
　　LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
　　{
　　 switch(Message)
　　 {
　　 case WM_CREATE:
　　 CreateWindow("EDIT", "",
　　 WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | ES_MULTILINE |
　　 ES_WANTRETURN,
　　 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
　　 hwnd, (HMENU)IDC_MAIN_TEXT, g_hInst, NULL);
　　 SendDlgItemMessage(hwnd, IDC_MAIN_TEXT, WM_SETFONT,
　　 (WPARAM)GetStockObject(DEFAULT_GUI_FONT), MAKELPARAM(TRUE, 0));
　　 break;
　　 case WM_SIZE:
　　 if(wParam != SIZE_MINIMIZED)
　　 MoveWindow(GetDlgItem(hwnd, IDC_MAIN_TEXT), 0, 0, LOWORD(lParam),
　　 HIWORD(lParam), TRUE);
　　 break;
　　 case WM_SETFOCUS:
　　 SetFocus(GetDlgItem(hwnd, IDC_MAIN_TEXT));
　　 break;
　　 case WM_COMMAND:
　　 switch(LOWORD(wParam))
　　 {
　　 case CM_FILE_OPEN:
　　 DoFileOpenSave(hwnd, FALSE);
　　 break;
　　 case CM_FILE_SAVEAS:
　　 DoFileOpenSave(hwnd, TRUE);
　　 break;
　　 case CM_FILE_EXIT:
　　 PostMessage(hwnd, WM_CLOSE, 0, 0);
　　 break;
　　 case CM_ABOUT:
　　 MessageBox (NULL, "File Editor for Windows ! Using the Win32 API" , "About...", 0);
　　 }
　　 break;
　　 case WM_CLOSE:
　　 DestroyWindow(hwnd);
　　 break;
　　 case WM_DESTROY:
　　 PostQuitMessage(0);
　　 break;
　　 default:
　　 return DefWindowProc(hwnd, Message, wParam, lParam);
　　 }
　　 return 0;
　　}
　　int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
　　 LPSTR lpCmdLine, int nCmdShow)
　　{
　　 WNDCLASSEX WndClass;
　　 HWND hwnd;
　　 MSG Msg;
　　 g_hInst = hInstance;
　　 WndClass.cbSize = sizeof(WNDCLASSEX);
　　 WndClass.style = 0;
　　 WndClass.lpfnWndProc = WndProc;
　　 WndClass.cbClsExtra = 0;
　　 WndClass.cbWndExtra = 0;
　　 WndClass.hInstance = g_hInst;
　　 WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
　　 WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
　　 WndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
　　 WndClass.lpszMenuName = "MAINMENU";
　　 WndClass.lpszClassName = g_szClassName;
　　 WndClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
　　 if(!RegisterClassEx(&WndClass))
　　 {
　　 MessageBox(0, "Window Registration Failed!", "Error!",
　　 MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
　　 return 0;
　　 }
　　 hwnd = CreateWindowEx(
　　 WS_EX_CLIENTEDGE,
　　 g_szClassName,
　　 "A File Program",
　　 WS_OVERLAPPEDWINDOW,
　　 CW_USEDEFAULT, CW_USEDEFAULT, 320, 240,
　　 NULL, NULL, g_hInst, NULL);
　　 if(hwnd == NULL)
　　 {
　　 MessageBox(0, "Window Creation Failed!", "Error!",
　　 MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL);
　　 return 0;
　　 }
　　 ShowWindow(hwnd, nCmdShow);
　　 UpdateWindow(hwnd);
　　 while(GetMessage(&Msg, NULL, 0, 0))
　　 {
　　 TranslateMessage(&Msg);
　　 DispatchMessage(&Msg);
　　 }
　　 return Msg.wParam;
　　}




//头文件// main.h #define CM_FILE_SAVEAS 9072 #define CM_FILE_EXIT 9071 #define CM_FILE_OPEN 9070 #define CM_ABOUT 9069 //主程序文件// main.c /*****************************************************/ #include <windows.h> #pragma hdrstop #include "Main.h" static char g_szClassName[] = "MyWindowClass"; static HINSTANCE g_hInst = NULL; #define IDC_MAIN_TEXT 1001 BOOL LoadFile(HWND hEdit, LPSTR pszFileName) { HANDLE hFile; BOOL bSuccess = FALSE; hFile = CreateFile(pszFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0); if(hFile != INVALID_HANDLE_VALUE) { DWORD dwFileSize; dwFileSize = GetFileSize(hFile, NULL); if(dwFileSize != 0xFFFFFFFF) { LPSTR pszFileText; pszFileText = (LPSTR)GlobalAlloc(GPTR, dwFileSize + 1); if(pszFileText != NULL) { DWORD dwRead; if(ReadFile(hFile, pszFileText, dwFileSize, &dwRead, NULL)) { pszFileText[dwFileSize] = 0; // Null terminator if(SetWindowText(hEdit, pszFileText)) bSuccess = TRUE; // It worked! } GlobalFree(pszFileText); } } CloseHandle(hFile); } return bSuccess; } BOOL SaveFile(HWND hEdit, LPSTR pszFileName) { HANDLE hFile; BOOL bSuccess = FALSE; hFile = CreateFile(pszFileName, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); if(hFile != INVALID_HANDLE_VALUE) { DWORD dwTextLength; dwTextLength = GetWindowTextLength(hEdit); if(dwTextLength > 0)// No need to bother if there's no text. { LPSTR pszText; pszText = (LPSTR)GlobalAlloc(GPTR, dwTextLength + 1); if(pszText != NULL) { if(GetWindowText(hEdit, pszText, dwTextLength + 1)) { DWORD dwWritten; if(WriteFile(hFile, pszText, dwTextLength, &dwWritten, NULL)) bSuccess = TRUE; } GlobalFree(pszText); } } CloseHandle(hFile); } return bSuccess; } BOOL DoFileOpenSave(HWND hwnd, BOOL bSave) { OPENFILENAME ofn; char szFileName[MAX_PATH]; ZeroMemory(&ofn, sizeof(ofn)); szFileName[0] = 0; ofn.lStructSize = sizeof(ofn); ofn.hwndOwner = hwnd; ofn.lpstrFilter = "Text Files (*.txt)*.txtAll Files (*.*)*.*"; ofn.lpstrFile = szFileName; ofn.nMaxFile = MAX_PATH; ofn.lpstrDefExt = "txt"; if(bSave) { ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT; if(GetSaveFileName(&ofn)) { if(!SaveFile(GetDlgItem(hwnd, IDC_MAIN_TEXT), szFileName)) { MessageBox(hwnd, "Save file failed.", "Error", MB_OK | MB_ICONEXCLAMATION); return FALSE; } } } else { ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY; if(GetOpenFileName(&ofn)) { if(!LoadFile(GetDlgItem(hwnd, IDC_MAIN_TEXT), szFileName)) { MessageBox(hwnd, "Load of file failed.", "Error", MB_OK | MB_ICONEXCLAMATION); return FALSE; } } } return TRUE; } LRESULT CALLBACK WndProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam) { switch(Message) { case WM_CREATE: CreateWindow("EDIT", "", WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL | ES_MULTILINE | ES_WANTRETURN, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hwnd, (HMENU)IDC_MAIN_TEXT, g_hInst, NULL); SendDlgItemMessage(hwnd, IDC_MAIN_TEXT, WM_SETFONT, (WPARAM)GetStockObject(DEFAULT_GUI_FONT), MAKELPARAM(TRUE, 0)); break; case WM_SIZE: if(wParam != SIZE_MINIMIZED) MoveWindow(GetDlgItem(hwnd, IDC_MAIN_TEXT), 0, 0, LOWORD(lParam), HIWORD(lParam), TRUE); break; case WM_SETFOCUS: SetFocus(GetDlgItem(hwnd, IDC_MAIN_TEXT)); break; case WM_COMMAND: switch(LOWORD(wParam)) { case CM_FILE_OPEN: DoFileOpenSave(hwnd, FALSE); break; case CM_FILE_SAVEAS: DoFileOpenSave(hwnd, TRUE); break; case CM_FILE_EXIT: PostMessage(hwnd, WM_CLOSE, 0, 0); break; case CM_ABOUT: MessageBox (NULL, "File Editor for Windows ! Using the Win32 API" , "About...", 0); } break; case WM_CLOSE: DestroyWindow(hwnd); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd, Message, wParam, lParam); } return 0; } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { WNDCLASSEX WndClass; HWND hwnd; MSG Msg; g_hInst = hInstance; WndClass.cbSize = sizeof(WNDCLASSEX); WndClass.style = 0; WndClass.lpfnWndProc = WndProc; WndClass.cbClsExtra = 0; WndClass.cbWndExtra = 0; WndClass.hInstance = g_hInst; WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClass.hCursor = LoadCursor(NULL, IDC_ARROW); WndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); WndClass.lpszMenuName = "MAINMENU"; WndClass.lpszClassName = g_szClassName; WndClass.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if(!RegisterClassEx(&WndClass)) { MessageBox(0, "Window Registration Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL); return 0; } hwnd = CreateWindowEx( WS_EX_CLIENTEDGE, g_szClassName, "A File Program", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 320, 240, NULL, NULL, g_hInst, NULL); if(hwnd == NULL) { MessageBox(0, "Window Creation Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK | MB_SYSTEMMODAL); return 0; } ShowWindow(hwnd, nCmdShow); UpdateWindow(hwnd); while(GetMessage(&Msg, NULL, 0, 0)) { TranslateMessage(&Msg); DispatchMessage(&Msg); } return Msg.wParam; }