相关函数说明:

 

SendMessage

函数功能:该函数将指定的消息发送到一个或多个窗口。此函数为指定的窗口调用窗口程序,直到窗口程序处理完消息再返回。而函数PostMessage不同,将一个消息寄送到一个线程的消息队列后立即返回。

  函数原型:LRESULT SendMessageHWND hWndUINT MsgWPARAM wParamLPARAM IParam);

  参数:

  hWnd:其窗口程序将接收消息的窗口的句柄。如果此参数为HWND_BROADCAST,则消息将被发送到系统中所有顶层窗口,包括无效或不可见的非自身拥有的窗口、被覆盖的窗口和弹出式窗口,但消息不被发送到子窗口。

  Msg:指定被发送的消息。

  wParam:指定附加的消息指定信息。

  IParam:指定附加的消息指定信息。

  返回值:返回值指定消息处理的结果,依赖于所发送的消息。

  备注:需要用HWND_BROADCAST通信的应用程序应当使用函数RegisterWindowMessage来为应用程序间的通信取得一个唯一的消息。

如果指定的窗口是由调用线程创建的,则窗口程序立即作为子程序调用。如果指定的窗口是由不同线程创建的,则系统切换到该线程并调用恰当的窗口程序。线程间的消息只有在线程执行消息检索代码时才被处理。发送线程被阻塞直到接收线程处理完消息为止。

 

 

 

#include <windows.h>

#include <string.h>

#include "menutest.h"

#define FILE_LIST DDL_DIRECTORY|DDL_READWRITE

 

LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam); //窗口函数声明

BOOL ShowFileInfo(HWND hWnd,HDC hDC,HDROP hDropInfo);

 

BOOL CALLBACK DlgProcGetFileName(HWND,UINT,WPARAM,LPARAM);    //获取文件名

BOOL FileToEditBox(HWND,LPSTR);        //文件到编辑框

BOOL EditBoxToFile(HWND,LPCTSTR);    //编辑框到文件

BOOL EditBoxToClip1(HWND);            //编辑框到剪贴板(复制)

BOOL EditBoxToClip2(HWND);            //编辑框到剪贴板(剪切)

BOOL ClipToEditBox(HWND);            //剪贴板到编辑框

bool check(char* , char* );            //判断两个字符串是否相等

 

HWND hWnd; //窗口句柄

HINSTANCE    hInst;        //应用程序实例句柄

 

HWND        hList;        //文件列表框句柄

HANDLE        hFile;        //文件句柄

HWND        hWndEdit;    //编辑框句柄

HWND        hStatic;    //状态栏句柄

 

OPENFILENAME ofn;

 

char szFile[255];

char szFileTitle[255];

 

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)

{

WNDCLASSEX wndclass;

MSG msg;

    HACCEL hAccel; // 定义加速键句柄

 

// 为窗口类结构赋值

wndclass.cbSize = sizeof (wndclass);

wndclass.style = CS_HREDRAW | CS_VREDRAW;

wndclass.lpfnWndProc = WndProc;

wndclass.cbClsExtra = 0;

wndclass.cbWndExtra = 0;

wndclass.hInstance = hInstance;

wndclass.hIcon = LoadIcon(hInstance,"MYICON");        //设置程序的图标(不能缺少)

wndclass.hCursor = LoadCursor (NULL, IDC_ARROW);

wndclass.hbrBackground = CreateSolidBrush(RGB(192,192,192));

wndclass.lpszMenuName = "Menu";

wndclass.lpszClassName = "TestWindowClass";

wndclass.hIconSm = LoadIcon(hInstance,"MYICON");    //设置程序的图标(不可缺少)

 

// 注册窗口类

if (!RegisterClassEx(&wndclass)) return 0;

 

// 用上面创建的类(即已经赋值的类)创建新窗口

hWnd = CreateWindowEx( //创建一个窗口并赋予窗口句柄hWnd

         0, //扩展窗口风格,为默认

"TestWindowClass", //创建窗口所用的类(这是上面的类的名字)

//不同的类以名字来区分!!!

                

                "记事本仿真程序^O^", //窗口的名称,(在标题栏)

WS_OVERLAPPEDWINDOW, //窗口风格为OVERLAPPED风格(和记事本一样的),

CW_USEDEFAULT, //这四个参数定义了窗口的位置和大小,现为默认

CW_USEDEFAULT,

CW_USEDEFAULT,

CW_USEDEFAULT,

NULL, //父窗口句柄,这里没有,所以设为NULL

NULL, //菜单句柄,,,这里没有,,,为NULL

hInstance, //创建窗口的应用程序的当前句柄

NULL); //创建参数,用于给程序传递数据,程序没用到,,所以为空

 

    if (!hWnd) return FALSE; //如果创建窗口失败,返回FALSE

 

    hInst=hInstance;

 

    ShowWindow(hWnd, nCmdShow);

UpdateWindow(hWnd);

 

    SendMessage(hWnd,WM_COMMAND,IDM_NEW,0L);

    

    //加载加速键

    hAccel=LoadAccelerators(hInstance,MAKEINTRESOURCE(IDR_ACCELERATOR1)); //加载快捷键表,若你在程序中没有快捷键表,则不需要用这个函数。

 

while (GetMessage(&msg,NULL,0,0))

{

        //在消息循环中截获加速键消息

        if(!TranslateAccelerator(hWnd,hAccel,&msg))

        {

            TranslateMessage(&msg);

DispatchMessage(&msg);

        }

}

 

    return 0; // 如果没有特殊要求,这里也可以是代表成功执行

}

 

LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)

{

HDC hDC;

    RECT ClientRect;

    LPCTSTR lpTemp="";    // 空字符串

    char *p=NULL;

 

    static bool flag=false;            //若没有打开文件,flag=flase

    static bool flag2=false;        //若没有新建文件,flag2=false

    static bool flag3=false;        //用来判断文件名是否带了后缀,在IDM_SAVE 中将会用到

    static bool flag4=false;        //用来判断是否保存了文件

 

switch (message)

{

    case WM_CREATE:

        GetClientRect(hwnd,&ClientRect);        //获取客户区大小

        hWndEdit=CreateWindow("EDIT",            //创建编辑框

                             NULL,

                             WS_CHILD|WS_VISIBLE|WS_VSCROLL|ES_MULTILINE|WS_BORDER,

 

                             ClientRect.left,

                             ClientRect.top,

                             ClientRect.right,

                             ClientRect.bottom,

 

                             hwnd,

                             (HMENU)ID_EDITCHILD,

                             hInst,

                             NULL);

        EnableWindow(hWndEdit,0);        //使编辑框不能接受输入

        DragAcceptFiles( hwnd,TRUE );    //API函数:允许hWnd所指的窗口实现文件拖放

                                        //         如果没有这个函数或设置为FALSE

                                        //         窗口都不能实现文件的拖放

        return 0;

 

    case WM_SIZE:    //当窗口大小改变的时候,编辑框与状态栏跟着改变

        MoveWindow(hWndEdit,0,0,LOWORD(lParam),HIWORD(lParam),true);        //编辑框

        return 0;

 

    case WM_COMMAND:

        switch(LOWORD(wParam))

        {

        case IDM_OPEN:

            SendMessage(hWndEdit,EM_SETSEL,0,-1);                     //选中所有文本

            SendMessage(hWndEdit,EM_REPLACESEL,wParam,(DWORD)lpTemp); //用空串代码

            EnableWindow(hWndEdit,0);                //使编辑框不能接受输入

 

            ZeroMemory(&ofn,sizeof(OPENFILENAME));

            ofn.Flags = OFN_ALLOWMULTISELECT | OFN_EXPLORER | OFN_FILEMUSTEXIST |OFN_PATHMUSTEXIST ;

            ofn.lpstrFile=szFile;

            ofn.nMaxFile=sizeof(szFile);

            ofn.lpstrFileTitle=szFileTitle;

            ofn.lpstrInitialDir=NULL;

            ofn.nMaxFileTitle = NULL;

            ofn.lpstrFilter="文本文件\0*.txt";

            ofn.lStructSize = sizeof(OPENFILENAME);

            ofn.hwndOwner=hwnd;    //父窗口句柄

                                //注:如果不指明父窗口句柄,当我们打开通用对话框

                                //     时将仍然可以对主窗口进行操作,这不是我们需要的

                                //     只有指明了父窗口句柄才能把焦点限定在通用对话框

 

            if (GetOpenFileName(&ofn)==TRUE)

            {

                EnableWindow(hWndEdit,1);            //使编辑框可以接受输入

                FileToEditBox(hwnd,szFile);            //文件到编辑框!!!!!!!!!!!!

            }

            EnableWindow(hWndEdit,1);                //使编辑框可以接受输入

 

            flag=true;            //打开了一个文件,flag=true

            flag4=false;        //打开了一个文件,还未保存,flag4=false

            return 0;

 

        case IDM_NEW:

            //弹出文件名对话框

            SendMessage(hWndEdit,EM_SETSEL,0,-1);                     //选中所有文本

            SendMessage(hWndEdit,EM_REPLACESEL,wParam,(DWORD)lpTemp); //用空串代码

            EnableWindow(hWndEdit,1);            //允许编辑框输入

            SetFocus(hWndEdit);                    //编辑框获得焦点

            flag2=true;                            //新建了文件,flag2=true

            flag4=false;                        //新建了文件,还未保存,flag4=false

            return 0;

 

        case IDM_CLOSE:

            SendMessage(hWndEdit,EM_SETSEL,0,-1);                     //选中所有文本

            SendMessage(hWndEdit,EM_REPLACESEL,wParam,(DWORD)lpTemp); //用空串代码

            EnableWindow(hWndEdit,0);                    //禁止编辑框输入

            flag=false;

            flag2=false;

            return 0;

 

        case IDM_SAVE:

            //将编辑框中所有内容输出到文件

            if(flag==true || flag2==true)

            {

                if(flag4==false)

                {

                    ofn.Flags = OFN_ALLOWMULTISELECT | OFN_EXPLORER |OFN_PATHMUSTEXIST|OFN_OVERWRITEPROMPT;

                    ofn.lpstrFile=szFile;

                    ofn.nMaxFile=sizeof(szFile);

                    ofn.lpstrFileTitle=szFileTitle;

                    ofn.lpstrInitialDir=NULL;

                    ofn.nMaxFileTitle = NULL;

                    ofn.lpstrFilter="文本文件\0*.txt";

                    ofn.lStructSize = sizeof(OPENFILENAME);

                    ofn.lpstrTitle ="另存为...";

                    ofn.hwndOwner=hwnd;                //父窗口句柄

 

                    EnableWindow(hWndEdit,0);        //使编辑框不能接受输入

                    GetSaveFileName(&ofn);

                    EnableWindow(hWndEdit,1);        //使编辑框可以接受输入

 

                    p=szFileTitle;

                    while(*p!='\0')

                    {

                        if(*p=='.')            //字符串里有"."号,说明文件名带了后缀

                        {                        

                            flag3=true;        //文件名带了后缀, flag3=true

 

                            if(check(p,".txt") || check(p,".TXT"))    //如果后缀是".txt" 或".TXT"                            

                                break;                                //OK,跳出循环

 

                            else                    //如果后缀不是".txt" 或".TXT"

                                strcat(p,".txt");    //在其末尾加上".txt"

                        }

                        p++;

                    }

                    if(flag3==false)

                    {

                        strcat(p,".txt");            //文件名没有带后缀,我们给它加上后缀

                    }

                }

                EditBoxToFile(hwnd,szFileTitle);

                flag4=true;

            }

            return 0;

 

        case IDM_SAVEAS:

            if(flag==true || flag2==true)

            {

                ofn.Flags = OFN_ALLOWMULTISELECT | OFN_EXPLORER |OFN_PATHMUSTEXIST|OFN_OVERWRITEPROMPT;

                ofn.lpstrFile=szFile;

                ofn.nMaxFile=sizeof(szFile);

                ofn.lpstrFileTitle=szFileTitle;

                ofn.lpstrInitialDir=NULL;

                ofn.nMaxFileTitle = NULL;

                ofn.lpstrFilter="文本文件\0*.txt";

                ofn.lStructSize = sizeof(OPENFILENAME);

                ofn.lpstrTitle ="另存为...";

                ofn.hwndOwner=hwnd;    //父窗口句柄

 

                EnableWindow(hWndEdit,0);        //使编辑框不能接受输入

                GetSaveFileName(&ofn);

                EnableWindow(hWndEdit,1);        //使编辑框可以接受输入

 

                p=szFileTitle;

                while(*p!='\0')

                {

                    if(*p=='.')            //字符串里有"."号,说明文件名带了后缀

                    {

                        flag=true;        //设置flag=false;

                        if(check(p,".txt") || check(p,".TXT"))    //如果后缀是".txt" 或".TXT"

                            break;                                //OK,返回

                        else                    //如果后缀不是".txt" 或".TXT"

                            strcat(p,".txt");    //在其末尾加上".txt"

                    }

                    else                        //若字符串里没有"."号,说明文件名没有带后缀

                        flag=false;                //设置flag=false;

                    p++;

                }

                if(flag==false)                    //若flag=false,说明文件名没有带后缀

                {

                    strcat(szFileTitle,".txt");    //给文件名加上后缀".txt"

                    flag=true;

                }

                if(flag==true)

                {

                    EditBoxToFile(hwnd,szFileTitle);

                    flag4=true;

                }

            }

            return 0;

 

        case IDM_EXIT:

            SendMessage(hwnd,WM_DESTROY,0,0);

            return 0;

 

        case IDM_COPY:

            EditBoxToClip1(hwnd);

            return 0;

 

        case IDM_CUT:

            EditBoxToClip2(hwnd);

            return 0;

 

        case IDM_PASTE:

            ClipToEditBox(hwnd);

            return 0;

 

        case IDM_ABOUT:

            MessageBox(hwnd,TEXT("记事本仿真程序(V1.0)\n\n广西工学院计:黄伟林\nQQ: 362176730\n最后更新: 2005-1-19"),TEXT("记事本仿真程序(V1.0)"),MB_OK|MB_ICONINFORMATION);

            return 0;

        }

        return 0;

 

    case WM_DROPFILES:        //当有文件被拖入窗口并放下时激发此消息

        HDROP hDropInfo;    //HDROP句柄,用以存放拖入文件的信息

        hDropInfo = ( HDROP )wParam;    //初始化hDropInfo(不进行初始化运行会出错)

 

        hDC = GetDC( hwnd );

        ShowFileInfo( hwnd,hDC,hDropInfo );

        DragFinish( hDropInfo );

        ReleaseDC( hwnd,hDC );

 

        flag=true;            //打开了一个文件,flag=true

        flag4=false;        //打开了一个文件,还未保存,flag4=false

        return 0;

 

    case WM_KEYDOWN:

        switch(wParam)

        {

        case VK_ESCAPE:

            DestroyWindow(hList);                //消毁文件列表框

            return 0;

        }

        return 0;

 

case WM_CLOSE: // 窗口关闭前的消息(比如用户点了关闭按钮)

        DWORD dwFileSize;

        dwFileSize=SendMessage(hWndEdit,WM_GETTEXTLENGTH,0,0);

 

        if((flag==true||flag2==true)&&flag4==false) //如果新建了文件或打开了文件

        {                                             //并且文件没有被保存过

 

            if(dwFileSize!=0)            //如果编辑框内容不为空

            {

                int t;

                t=::MessageBox(NULL,"文件还未保存,是否要保存?","提示",MB_YESNOCANCEL|MB_ICONINFORMATION);

                if(t==IDYES)

                {

                    SendMessage(hWnd,WM_COMMAND,IDM_SAVEAS,0L);        //保存文件

                    DestroyWindow(hwnd);                            //毁灭窗口

                    return 0;

                }

                else if(t==IDCANCEL)

                {

                    return 0;

                }

            }

        }

 

        DestroyWindow(hwnd);

        return 0;        // 此时Windows还根本没有对窗口做任何事,可以用MessageBox来测试

 

case WM_DESTROY: // 窗口关闭以后的消息,此时Windows已经毁坏了窗口

DragAcceptFiles( hwnd,FALSE );

        PostQuitMessage(0);

        return 0;

}

 

return DefWindowProc(hwnd, message, wParam, lParam); // 默认消息处理

}

 

BOOL FileToEditBox(HWND hwnd, LPSTR lpszFileName)

{

    DWORD    dwFileSize,dwByteRead;            //文件大小,文件读入字节

    char *lpBufPtr=NULL;                    //文件缓冲区

 

    //打开文件

    hFile=CreateFile(lpszFileName,            //文件名

                     GENERIC_READ,            //只进行读文件操作

                     FILE_SHARE_READ,        //读方式:共享读

                     NULL,

                     OPEN_EXISTING,            //打开一个文件,如果文件不存在,函数失败

                     FILE_ATTRIBUTE_NORMAL, //常规文件

                     (HANDLE)NULL);

 

    if(hFile!=INVALID_HANDLE_VALUE)            //若打开文件成功

    {

        dwFileSize=GetFileSize(hFile,NULL);        //读取文件大小

        if(dwFileSize!=0xFFFFFFFF)                //若读取文件大小成功

        {

            lpBufPtr=(char*)malloc(dwFileSize);    //开辟文件缓冲区

            if(lpBufPtr!=NULL)                    //若开辟文件缓冲区成功

            {

                //读取文件

                ReadFile(hFile,                    //文件句柄

                         (LPVOID)lpBufPtr,        //文件缓冲区指针

                         dwFileSize,            //文件大小

                         &dwByteRead,            //记录读入了多少字节

                         NULL);                    //从文件当前位置读取

 

                if(dwByteRead!=0)                //若读取文件成功

                {

                    //将文件写入编辑框

                    SendMessage(hWndEdit,WM_SETTEXT,0,(LPARAM)lpBufPtr);

                }

                else

                {

                    MessageBox(NULL,"读入字节数为0 ","",0);

                    free(lpBufPtr);

                    return 0;

                }

            }

            else

            {

                MessageBox(hwnd,"内存分配失败","",0);

                return 0;

            }

        }

        else

        {

            MessageBox(hwnd,"获取文件大小失败","",0);

            return 0;

        }

    }

    else

    {

        MessageBox(hwnd,"打开文件失败","",0);

        return 0;

    }

    CloseHandle(hFile);

    return 1;

}

 

BOOL EditBoxToFile(HWND hwnd,LPCTSTR lpszFileName)

{

    DWORD dwFileSize,dwByteWrite;        //文件大小,已写入的字节数

    char *lpBufPtr=NULL;                //文件缓冲区

    hFile=CreateFile(lpszFileName,

                     GENERIC_READ|GENERIC_WRITE,    //读写文件

                     FILE_SHARE_WRITE,                //写方式:共享写

                     NULL,

                     CREATE_ALWAYS,                    //创建一个文件,如果文件已存在将被重写

                     FILE_ATTRIBUTE_NORMAL,            //常规文件

                     (HANDLE)NULL);

 

    if(hFile!=INVALID_HANDLE_VALUE)

    {

        //读取编辑框中的文本的大小

        dwFileSize=SendMessage(hWndEdit,WM_GETTEXTLENGTH,0,0);

        dwFileSize+=1;        //文本长度+,否则丢失最后一个字符

        if(dwFileSize!=0)    //若读取文件大小成功

        {

            lpBufPtr=(char*)malloc(dwFileSize);        //开辟文件缓冲区

            if(lpBufPtr!=NULL)                        //若开辟文件缓冲区成功

            {

                //读取编辑框中的内容

                GetWindowText(hWndEdit,lpBufPtr,dwFileSize);

 

                //将文件缓冲区内容写入文件

                WriteFile(hFile,(LPVOID)lpBufPtr,dwFileSize,&dwByteWrite,NULL);

                free(lpBufPtr);                //释放缓冲区

            }

            else

            {

//                MessageBox(NULL,"内存分配失败","",0);

                return 0;

            }

        }

        else

        {

//            MessageBox(NULL,"编辑框内容为空","",0);

            CloseHandle(hFile);

            return 0;

        }

    }

    else

    {

//        MessageBox(NULL,"创建文件失败","",0);

        return 0;

    }

    CloseHandle(hFile);

    return 1;

}

 

//编辑框到剪贴板(复制操作)

BOOL EditBoxToClip1(HWND hWnd)

{

    LPTSTR lpCopyStr,lpText;

    HANDLE hText;                //全局内存句柄

    DWORD dPos;

    WORD wStart,wEnd;

    char *lpBufPtr;

    DWORD dwFileSize;            //文本大小

 

    //得到选中的文本位置

    dPos=SendMessage(hWndEdit,EM_GETSEL,NULL,NULL);

    wEnd=HIWORD(dPos);                                    //开始位置

    wStart=LOWORD(dPos);                                //结束位置

 

    //获得文本框中文本长度

    dwFileSize=SendMessage(hWndEdit,WM_GETTEXTLENGTH,0,0L);

    lpBufPtr=(char*)malloc(dwFileSize+2);                //开辟文本缓冲区

    if(lpBufPtr!=NULL)

    {

        // 读取编辑框文本内容保存到lpBufPtr(读取的是所有文本,而不仅仅是选中的文本)

        SendMessage(hWndEdit,WM_GETTEXT,dwFileSize,(LPARAM)lpBufPtr);

 

        // 截取我们选中的文本

        lpCopyStr=lpBufPtr+wStart;

        *(lpCopyStr+(wEnd-wStart))='\0';

    }

    else

    {

        MessageBox(hWnd,"内存分配失败","",MB_OK|MB_ICONEXCLAMATION);

        return 0;

    }

 

    if(!(hText=GlobalAlloc(GHND,wEnd-wStart+1)))

    {

        MessageBox(hWnd,"全局内存分配失败","",MB_OK);

        return 0;

    }

 

    //复制文本到全局内存

    lpText=(LPTSTR)GlobalLock(hText);        //锁定全局内存并返回全局内存指针

    lstrcpy(lpText,lpCopyStr);                //复制文本到全局内存

    GlobalUnlock(hText);                    //解锁全局内存

 

    //以下为剪贴板操作

    if(!OpenClipboard(hWnd))                //打开剪贴板

    {

        MessageBox(hWnd,"剪贴板打开失败!","",MB_OK);

        return 0;

    }

    EmptyClipboard();                        //清空剪贴板

    SetClipboardData(CF_TEXT,hText);        //设置剪贴板内容

    CloseClipboard();                        //关闭剪贴板

 

    hText=NULL;

    return 1;

}

 

//编辑框到剪贴板(剪切操作)

BOOL EditBoxToClip2(HWND hWnd)

{

    EditBoxToClip1(hWnd);

    SendMessage(hWndEdit,EM_REPLACESEL,1,(LPARAM)"");    //以空格取代编辑框被选中的文本

    return 1;

}

 

//剪贴板到编辑框

BOOL ClipToEditBox(HWND hWnd)

{

    LPTSTR    lpPasteStr,lpText;

    HANDLE    hText;

    DWORD    dPos;

    WORD    wStart,wEnd;

 

    //得到文本位置

    dPos=SendMessage(hWndEdit,EM_GETSEL,NULL,NULL);

    wEnd=HIWORD(dPos);

    wStart=LOWORD(dPos);

 

    if((wEnd-wStart)>=0)            //文本长度必须>=0

    {

        if(!(IsClipboardFormatAvailable(CF_TEXT)))

        {

            /*---------API函数小帖士-------------

            名称    IsClipboardFormatAvailable

            原型    BOOL IsClipboardFormatAvailable (UINT uFormat)

            描述    检测剪贴板是否支持某种数据类型

            返回值:成功返回TRUE,失败返回FALSE

            现支持类型: CF_TEXT,即目前只支持检测文本模式

            ------------------------------*/

            MessageBox(hWnd,"剪贴板文本模式不可用","",MB_OK);

            return 0;

        }

        if(!OpenClipboard(hWnd))

        {

            MessageBox(hWnd,"剪贴板打开失败","",MB_OK);

            return 0;

        }

        if(!(hText=GetClipboardData(CF_TEXT)))

        {

            MessageBox(hWnd,"无法读取剪贴板数据","",MB_OK);

            return 0;

        }

 

        lpText=(LPTSTR)GlobalLock(hText);                //锁定内存并返回内存指针

        lpPasteStr=(LPTSTR)malloc(GlobalSize(hText));    //根据剪贴板内容开辟文本缓冲区

        lstrcpy(lpPasteStr,lpText);                        //文本复制

        GlobalUnlock(hText);                            //解锁全局内存

 

        //在编辑框中的光标位置插入lpPasteStr

        SendMessage(hWndEdit,EM_REPLACESEL,1,(LPARAM)lpPasteStr);

    }

    else

        MessageBox(hWnd,"文本插入位置错误","",MB_OK);

    return 1;

}

 

bool check(char* a, char* b) //判断两个字符串是否相等

{

    int i;

    int j=strlen(b);

    for(i=0; i<j; i++)

    {

        if(*a==*b)

        {

            a++;

            b++;

        }

        else

            return 0;

    }

    return 1;

}

 

BOOL ShowFileInfo( HWND hwnd,HDC hDC,HDROP hDropInfo )

{

WORD cFiles;

char lpszFile[255];

 

    /*----------API 函数小帖士----------------

    API函数DragQueryFile():

    UINT DragQueryFile(HDROP hDrop,

     UINT iFile,

     LPTSTR lpszFile,

     UINT cch )

 

    ---- 其中hDrop是指向拖动文件结构的句柄;

    ---- iFile 是以开始的被托动文件的序号,因为一次可能拖动多个文件。当此参数

    ---- 设为xFFFFFFFF,则函数返回拖动文件的数量;

    ---- lpszFile 是指向文件名的缓冲区;    

    ---- cch 是文件名缓冲区的大小,即文件名的字符数。

    ----------------------------------*/

 

    // 返回拖入的文件数目

cFiles = DragQueryFile( hDropInfo,( UINT )0xFFFFFFFF,( LPTSTR )NULL,( UINT )NULL );

 

if( cFiles > 1 )        //如果施入的文件不只一个,显示如下信息:

{

//        MessageBox(NULL,"你拖入的文件过多,请重新操作","提示",0);

return FALSE;

}

 

else        //如果拖入的文件只有一个

{

DragQueryFile( hDropInfo,0,lpszFile,sizeof( lpszFile ) );

        //从hDropInfo 获取文件信息存放到lpszFile

        //注:DragQueryFile()函数取得的信息是完整的文件名,

        //     即除了文件名外还包含了文件路径,可以用MessageBox()函数测试

        

        EnableWindow(hWndEdit,1);                //使编辑框可以接受输入

        FileToEditBox(hwnd,lpszFile);            //文件到编辑框!!!!!!!!!!!!

    }

    return TRUE;

}

posted on 2009-03-10 10:43  yangjie  阅读(1125)  评论(0编辑  收藏  举报