C++下的WIN32应用程序读取TXT文件并显示在EDIT控件中 怎样用MFC读取全部txt文本内容并显示到EDIT控件里面
C++\u4e2d\u8bfb\u53d6TXT\u6587\u6863\u4e2d\u5185\u5bb9\u5e76\u663e\u793a\u5728Edit\u6846\u4e2d\u7684\u95ee\u9898\u8fd9\u4e2a\u65b9\u6cd5\u662f\u7528\u6765\u8bfb\u6587\u672c\u6587\u4ef6\u7684\u3002\u800c\u52a0\u5bc6\u540e\u7684\u6587\u4ef6\u91cc\uff0c\u4ec0\u4e48\u5185\u5bb9\u90fd\u53ef\u80fd\u6709\uff0c\u6240\u4ee5\u4e0d\u80fd\u7528\u6587\u672c\u65b9\u5f0f\u8bfb\uff0c\u5fc5\u987b\u4ee5\u4e8c\u8fdb\u5236\u65b9\u5f0f\u8bfb\u3002\u53e6\u5916\uff0c\u628a\u5bc6\u6587\u663e\u793a\u5728edit\u4e0a\u4e5f\u662f\u6ca1\u6709\u610f\u4e49\u7684\uff0c\u56e0\u4e3a\u91cc\u9762\u53ef\u80fd\u6709\u65e0\u6cd5\u663e\u793a\u7684\u5b57\u7b26\u3002
do
{
myFile.ReadString(str1);
str2=str2+str1;
}
while(myFile.ReadString(str1));
\u4f60Read\u4e86\u4e24\u6b21\uff0c\u4f46\u6709\u4e00\u6b21\u6ca1\u6709\u5904\u7406\u3002
\u53ef\u4ee5\u8fd9\u6837\uff1a
do
{
myFile.ReadString(str1);
str2=str2+str1;
}
while(str1.Length()>0);
/* Creation of a simple Windows API program 修改自devcpp example simpwin*/
#include <windows.h>
#include <iostream>// <-------------
#include <fstream>// <-------------
using namespace std;// <-------------
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
int WINAPI
WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nFunsterStil)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl))
return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
600, /* The programs width */
400, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK
WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HWND hEdit;// <-------------
static HWND hBtn;// <-------------
switch (message) /* handle the messages */
{
case WM_CREATE:// ------------->
hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, TEXT("EDIT"), TEXT(""),
WS_CHILDWINDOW|WS_VSCROLL|ES_MULTILINE|ES_WANTRETURN, 10, 20, 500, 300,
hwnd, NULL, NULL, NULL);
ShowWindow(hEdit, SW_SHOW);
hBtn = CreateWindowEx(WS_EX_WINDOWEDGE, TEXT("BUTTON"), TEXT("按钮"),
WS_CHILDWINDOW, 520, 100, 60, 30,
hwnd, NULL, NULL, NULL);
ShowWindow(hBtn, SW_SHOW);
break;
case WM_COMMAND:
if(lParam == (LPARAM)hBtn){
filebuf *pbuf;
ifstream filestr;
long size;
char * buffer;
filestr.open ("d:\est.txt",ios::in|ios::binary);
pbuf=filestr.rdbuf();
size=pbuf->pubseekoff (0,ios::end,ios::in);
pbuf->pubseekpos (0,ios::in);
buffer=new char[size];
pbuf->sgetn(buffer,size);
filestr.close();
SetWindowText(hEdit, buffer);
delete [] buffer;
}
break;// <-------------
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
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