更新：
更換了ico.....
新增選擇字體和顏色的功能；
修正：
資源文件都已經(jīng)打包到工程目錄里了，路徑也改成了相對路徑；
解決了保存100KB以上的文件會丟失數(shù)據(jù)的問題。
核心代碼：
#include "resource.h"
#include <windows.h>
#include <stdio.h>
#include <Richedit.h>
#include <shlwapi.h>
#pragma comment(lib,"shlwapi.lib")
#define WM_FILENAME WM_USER+1//自定義消息，這個消息用來發(fā)送用戶選擇的文件全路徑
#define OPEN WM_USER+2//一個Flag，標識這個文件是在打開對話框里選擇的還是保存對話框
#define SAVE WM_USER+3
INT_PTR ExitCode1;//用來保存主對話框的退出代碼
INT_PTR ExitCode2;//About對話框的退出代碼
HINSTANCE hMain;//用來保存實例句柄
//主對話框過程函數(shù)聲明
INT_PTR CALLBACK DialogProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam);
//About對話框過程函數(shù)聲明
INT_PTR CALLBACK AboutProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam);
BOOL OnInitDialog(HWND hwndDlg);//相應(yīng)WM_ONINITDIALOG消息時調(diào)用的函數(shù)
BOOL OnOpen(HWND hwndDlg,DWORD Flag);//當用戶點擊Open菜單項時調(diào)用
//void GetTitle(char *pSourceBuf,char *pDestBuf);
void ChooseFont(HWND hwndDlg,CHOOSEFONT &font,LOGFONT &log);
int WINAPI WinMain(HINSTANCE hIns,HINSTANCE hPrev,LPSTR lpCmd,int nShowCmd)//入口函數(shù)
{
LoadLibrary("Riched20.dll");//要用Rich Edit控件就必須要先加載這個庫，否則程序無法運行
hMain=hIns;
ExitCode1=DialogBox(hIns,MAKEINTRESOURCE(IDD_DIALOG1),NULL,DialogProc);//創(chuàng)建主對話框
return 0;
}
//主對話框過程函數(shù)
INT_PTR CALLBACK DialogProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
switch(uMsg)
{
case WM_INITDIALOG://初始化
OnInitDialog(hwndDlg);
break;
//當用戶改變主對話框的大小時，Edit控件大小也應(yīng)該改變。
case WM_SIZE:
{
RECT rect;
ZeroMemory(&rect,sizeof(RECT));
GetWindowRect(hwndDlg,&rect);//獲取主對話框窗口的大小，詳見MSDN
HWND hEdit=GetDlgItem(hwndDlg,IDC_TEXT);
//改變Edit控件的大小
SetWindowPos(hEdit,HWND_TOP,0,0,rect.right-rect.left-5,rect.bottom-rect.top-50,SWP_SHOWWINDOW);
CloseHandle(hEdit);
}
break;
case WM_COMMAND:
if(IDM_OPEN==wParam)//Open被用戶點擊
OnOpen(hwndDlg,OPEN);
if(IDM_EXIT==wParam)//Exit被用戶點擊
SendMessage(hwndDlg,WM_CLOSE,NULL,NULL);//發(fā)送WM_CLOSE消息
if(IDM_ABOUT==wParam)//About被點擊，創(chuàng)建ABOUT對話框
ExitCode2=DialogBox(hMain,MAKEINTRESOURCE(IDD_ABOUT),hwndDlg,AboutProc);
if(IDM_SAVE==wParam)//用戶點擊Save
{
OnOpen(hwndDlg,SAVE);
}
if(IDM_CLOSEFILE==wParam)
{
SetDlgItemText(hwndDlg,IDC_TEXT,"");
SetWindowText(hwndDlg,"NotePadV2.0 By 小司");
}
if(IDM_FORMAT==LOWORD(wParam))
{
LOGFONT log;
CHOOSEFONT font;
CHARFORMAT2 cm;
ZeroMemory(&cm,sizeof(cm));
ChooseFont(hwndDlg,font,log);
if(ChooseFont(&font))
{
strcpy(cm.szFaceName,log.lfFaceName);
cm.cbSize=sizeof(cm);
cm.dwMask=CFM_FACE | CFM_SIZE | CFM_WEIGHT | CFM_COLOR;
cm.yHeight=log.lfHeight * log.lfHeight;
cm.wWeight=log.lfWeight;
cm.bPitchAndFamily=log.lfPitchAndFamily;
cm.crTextColor=font.rgbColors;
HWND hText=GetDlgItem(hwndDlg,IDC_TEXT);
SendMessage(hText,EM_SETCHARFORMAT,SCF_ALL,(LPARAM)&cm);
}
}
break;
case WM_FILENAME://自定義的消息，用來接收文件路徑
if(OPEN==lParam)
{
//打開文件的目的是為了用GetFileSize函數(shù)獲取文件大小
HANDLE hFile=CreateFile((LPCSTR)wParam,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,NULL);
if(INVALID_HANDLE_VALUE==hFile)
{
MessageBox(hwndDlg,"Open File Failed!","Error",0);
CloseHandle(hFile);
break;
}
DWORD dwFileSize=GetFileSize(hFile,NULL);//獲取文件大小
CloseHandle(hFile);
TCHAR *pszData=new TCHAR[dwFileSize];
memset(pszData,0,dwFileSize);
FILE *fp=fopen((char*)wParam,"r");//wParam里保存了文件的路徑
fread(pszData,dwFileSize,1,fp);
fclose(fp);
SetDlgItemText(hwndDlg,IDC_TEXT,pszData);//顯示數(shù)據(jù)
}
if(SAVE==lParam)
{
HWND hText=GetDlgItem(hwndDlg,IDC_TEXT);
int len=GetWindowTextLength(hText);
TCHAR *pBuf=new TCHAR[len];
memset(pBuf,0,len);
GetDlgItemText(hwndDlg,IDC_TEXT,pBuf,len);
char szFilePath[MAX_PATH+10];
sprintf_s(szFilePath,"%s.txt",(char*)wParam);//湊出來.txt
FILE *fp=fopen(szFilePath,"w");
fwrite(pBuf,1,len,fp);
fclose(fp);
}
break;
//這個消息無用，調(diào)試用的..
case WM_LBUTTONDOWN:
break;
case WM_CLOSE:
if(IDYES==MessageBox(hwndDlg,"Are you sure to exit?","Warming",MB_YESNO | MB_ICONWARNING))
{
EndDialog(hwndDlg,ExitCode1);
break;
}
break;
default:
break;
}
return FALSE;
}
//about窗口過程函數(shù)
INT_PTR CALLBACK AboutProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
switch(uMsg)
{
case WM_CLOSE:
EndDialog(hwndDlg,ExitCode2);
break;
case WM_COMMAND:
if(IDOK==wParam)
{
SendMessage(hwndDlg,WM_CLOSE,NULL,NULL);
}
break;
default:
break;
}
return FALSE;
}
BOOL OnInitDialog(HWND hwndDlg)
{
HICON hIcon=LoadIcon(hMain,MAKEINTRESOURCE(IDI_ICON1));//載入圖標
SendMessage(hwndDlg,WM_SETICON,ICON_SMALL,(LPARAM)hIcon);//設(shè)置圖標
return TRUE;
}
BOOL OnOpen(HWND hwndDlg,DWORD Flag)
{
//見MSDN中關(guān)于GetOpenFileName的說明
TCHAR szFile[MAX_PATH];
TCHAR szFileTitle[MAX_PATH];
OPENFILENAME op;
memset(szFile,0,MAX_PATH);
memset(szFileTitle,0,MAX_PATH);
ZeroMemory(&op,sizeof(op));
op.lStructSize=sizeof(op);
op.hwndOwner=hwndDlg;
op.lpstrFile=szFile;
op.nMaxFile=MAX_PATH;
op.lpstrFilter="All\0*.*\0文本文件(*.txt)\0*.txt\0";
op.nFilterIndex=2;
op.lpstrFileTitle=NULL;
op.nMaxFileTitle=0;
op.lpstrInitialDir=NULL;
op.Flags=OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_OVERWRITEPROMPT;
if(OPEN==Flag)
{
if(GetOpenFileName(&op))
{//把文件的路徑發(fā)送給主對話框
StrCpy(szFileTitle,szFile);
PathStripPath(szFileTitle);
SetWindowText(hwndDlg,szFileTitle);
SendMessage(hwndDlg,WM_FILENAME,(WPARAM)szFile,(LPARAM)Flag);
}
}
if(SAVE==Flag)
{
if(GetSaveFileName(&op))
{
SendMessage(hwndDlg,WM_FILENAME,(WPARAM)szFile,(LPARAM)Flag);
}
}
return TRUE;
}
void ChooseFont(HWND hwndDlg,CHOOSEFONT &font,LOGFONT &log)
{
TCHAR szStyle[256];
HDC dc=GetDC(NULL);
memset(szStyle,0,256);
WORD wFontType=0;
COLORREF color=RGB(0,0,0);
ZeroMemory(&log,sizeof(log));
ZeroMemory(&font,sizeof(font));
font.lStructSize=sizeof(font);
font.hwndOwner=hwndDlg;
font.lpLogFont=&log;
font.Flags=CF_EFFECTS | CF_FORCEFONTEXIST | CF_BOTH;
font.rgbColors=color;
font.lpszStyle=szStyle;
font.hDC=dc;
font.nFontType=wFontType;
}
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