学步园

    #include <windows.h> 
    char om[262144]; 
    BOOL CALLBACK EnumWindowProc(HWND hWnd,LPARAM lParam); 
    BOOL CALLBACK EnumChildWindowProc(HWND hWnd,LPARAM lParam); 
    int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd) 
    { 
        HWND nphWnd=::FindWindow("notepad",NULL); 
        if(nphWnd) 
        { 
            ::EnumWindows(EnumWindowProc,0);//枚举窗口 
            ::EnumChildWindows(nphWnd,EnumChildWindowProc,0); 
        } 
        return 0; 
    } 
    BOOL CALLBACK EnumWindowProc(HWND hWnd,LPARAM lParam)//枚举窗口的回调函数 
    { 
        char temp1[256]; 
        char WinClassName[256]; 
        ::GetClassName(hWnd,WinClassName,255);//获得类名 
        DWORD pID=0; 
        ::GetWindowThreadProcessId(hWnd,(LPDWORD)&pID);//获得进程ID 
        ::GetWindowText(hWnd,temp1,255);//获得窗口标题 
        ::wsprintf(om,"%s%s%s%s%s%s%d",om,"\r\nclassname: ",WinClassName,",wintext: ",temp1,",ID:",pID); 
        return true; 
    } 
    BOOL CALLBACK EnumChildWindowProc(HWND hWnd,LPARAM lParam) 
    { 
        char temp1[256]; 
        if(hWnd) 
        { 
            ::GetClassName(hWnd,temp1,255); 
            if(!::strcmp(temp1,"Edit")) 
            { 
                ::SendMessage(hWnd,WM_SETTEXT,0,(LPARAM)om); 
                return 0; 
            } 
        } 
        return true; 
    }