//modify base on hellowin.cpp
#include <Windows.h>
#include <TlHelp32.h>
#include <iostream>
LRESULT CALLBACK WndProc (HWND,UINT, WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR szCmdLine,
    int iCmdShow)
{
    static TCHAR szAppName[] = TEXT ("hellowin");
    HWND hwnd;
    MSG msg;
    WNDCLASS   wndclass;
    wndclass.style   = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc  = WndProc;
    wndclass.cbClsExtra  = 0 ;
    wndclass.cbWndExtra = 0 ;
    wndclass.hInstance = hInstance;
    wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
    wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
    wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szAppName;
    if(!RegisterClass(&wndclass))
    {
        MessageBox(NULL,TEXT("This program requires Windows NT!"),szAppName,MB_ICONERROR);
return 0;
    }
    //RegisterClass(&wndclass);
    hwnd = CreateWindow(szAppName, //window class name
           TEXT("hellowin"),//window caption
           WS_OVERLAPPEDWINDOW,//window style
           CW_USEDEFAULT,//initial x position
           CW_USEDEFAULT,//initial y position
           CW_USEDEFAULT,//initial x size
           CW_USEDEFAULT,//initial y size
           NULL,//parent window handle
           NULL,//window menu handle
           hInstance,//program instance handle
           NULL);//creation parameters
    ShowWindow(hwnd,iCmdShow);
    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;
    RECT rect;
    switch(message)
    {
    case WM_CREATE:
        return 0;
    case WM_PAINT:
        hdc = BeginPaint(hwnd,&ps);
            GetClientRect(hwnd,&rect);
    DrawText (hdc,TEXT("win7hello!!!!"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
            EndPaint(hwnd,&ps);
        return 0 ;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }
    return DefWindowProc(hwnd,message,wParam,lParam);}
以上是HELLOWIN
我想插入的代码是
PROCESSENTRY32 pe32;
 pe32.dwSize=sizeof(pe32);
 int count=0;
 HANDLE hProcessSnap=::CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
 BOOL bMore=::Process32First(hProcessSnap,&pe32);
  while (bMore)
  {
   count++;
   //printf("\n%20S%10d\n",pe32.szExeFile,pe32.th32ProcessID);
  if(wcscmp(pe32.szExeFile,TEXT("smss.exe")) == 0)
  {
   //system("pause");
  }
   bMore=::Process32Next(hProcessSnap,&pe32);
  }
请问应该怎么改HELLOWIN，让 DRAWTEXT的“WIN7HELLO”变成“SMSS。EXE”
非常感谢

封一个函数，吧你要插入的函数扔到这个自己封的函数里面去就行了，如果编译有错误， 看看错误是什么，如果有一般都是缺少包含某头文件之类的。#include进去就行了

你想插入这段代码，和你想实现的效果

感觉没有一致性。
你提供的那段插入代码是遍历进程的，如需要可以printf出来，但你获取进程后要做什么没有说明。
你想把DRAWTEXT的文本内容改变，可以考虑提供一个WM_LBUTTONDOWN消息，也就是当鼠标左键按下时就响应该事件，然后DRAWTEXT使显示文本改变就可以了。