将编辑框的内容用消息对话框显示出来的问题
#include<windows.h>
#include<stdio.h>
#include<string.h>
char str[80];
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(
HINSTANCE hInstance, // handle to current instance
HINSTANCE hPrevInstance, // handle to previous instance
LPSTR lpCmdLine, // command line
int nCmdShow // show state
)
{
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wndclass.hInstance = hInstance;
wndclass.lpfnWndProc = WndProc;
wndclass.lpszClassName = "text1";
wndclass.lpszMenuName = NULL;
wndclass.style = CS_HREDRAW | CS_VREDRAW;
if(!RegisterClass(&wndclass))
{
MessageBox(NULL,"窗口注册失败！","text1Win",0);
return 0;
}
hwnd = CreateWindow("text1",
"Application窗口",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);
ShowWindow(hwnd,nCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
static HWND hButton, hwndEdit[1];
switch(message)
{
case WM_CREATE:
hwndEdit[0]= CreateWindow("edit",NULL,WS_CHILD | WS_VISIBLE | WS_BORDER,20,70,100,25,hwnd,NULL,NULL,NULL);
hButton = CreateWindow("button","确定",WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,130,70,80,25,hwnd,NULL,NULL,NULL);
return 0;
case WM_COMMAND:
if(((HWND)lParam == hButton)&&(HIWORD(wParam) == BN_CLICKED))
{
SetWindowText(hwndEdit[1], "edit");
GetWindowText(hwndEdit[1],str,80);
printf(str,str);
MessageBox(NULL,str,"您输入的为：",0);
}
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
TextOut(hdc,10,10," ",50);
EndPaint(hwnd,&ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd,message,wParam,lParam);

}
这个是我编写的程序。
题目是在主窗口中创建一个编辑框和一个按钮，单击按钮后，将编辑框的内容用消息对话框显示出来，而且编辑框上的内容是自己随意输入的，不能是固定的

[解决办法]

C/C++ code

#include<windows.h>#include<stdio.h>#include<string.h>char str[80];LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(  HINSTANCE hInstance, // handle to current instance  HINSTANCE hPrevInstance, // handle to previous instance  LPSTR lpCmdLine, // command line  int nCmdShow // show state  ){    HWND hwnd;    MSG msg;    WNDCLASS wndclass;    wndclass.cbClsExtra = 0;    wndclass.cbWndExtra = 0;    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);    wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);    wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);    wndclass.hInstance = hInstance;    wndclass.lpfnWndProc = WndProc;    wndclass.lpszClassName = "text1";    wndclass.lpszMenuName = NULL;    wndclass.style = CS_HREDRAW | CS_VREDRAW;    if(!RegisterClass(&wndclass))    {        MessageBox(NULL,"窗口注册失败！","text1Win",0);        return 0;    }    hwnd = CreateWindow("text1",        "Application窗口",        WS_OVERLAPPEDWINDOW,        CW_USEDEFAULT,        CW_USEDEFAULT,        CW_USEDEFAULT,        CW_USEDEFAULT,        NULL,        NULL,        hInstance,        NULL);    ShowWindow(hwnd,nCmdShow);    UpdateWindow(hwnd);    while(GetMessage(&msg,NULL,0,0))    {        TranslateMessage(&msg);        DispatchMessage(&msg);    }    return msg.wParam;}LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam){    HDC hdc;    PAINTSTRUCT ps;    static HWND hButton, hwndEdit;    switch(message)    {    case WM_CREATE:        hwndEdit= CreateWindow("edit",NULL,WS_CHILD | WS_VISIBLE | WS_BORDER,20,70,100,25,hwnd,NULL,NULL,NULL);        hButton = CreateWindow("button","确定",WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,130,70,80,25,hwnd,NULL,NULL,NULL);        break;    case WM_COMMAND:        if(((HWND)lParam == hButton)&&(HIWORD(wParam) == BN_CLICKED))        {            //SetWindowText(hwndEdit, "edit");            GetWindowText(hwndEdit,str,80);            //printf(str,str);            MessageBox(NULL,str,"您输入的为：",MB_OK);        }        break;    case WM_PAINT:        hdc = BeginPaint(hwnd,&ps);        //TextOut(hdc,10,10," ",50);        EndPaint(hwnd,&ps);        return 0;    case WM_DESTROY:        PostQuitMessage(0);        break;    }    return DefWindowProc(hwnd,message,wParam,lParam);    }