一踏糊涂的程序谁帮我改？

Question

自己都觉得，主要是其中的类型问题！
#include <stdafx.h>#define window_class_name  "clock"
HWND main_window_handle;
HINSTANCE main_instance;LRESULT CALLBACK WinProc(HWND hwnd,
 UINT msg,
 WPARAM wparam,
 LPARAM lparam)
{
CTime time;
CSize size;
RECT rect;
PAINTSTRUCT ps;
HDC hdc;
CString str;
int centerx;
int centery;
double Radians;
switch(msg)
{
case WM_CREATE:
        SetTimer(hwnd,TIMER_ID1,1000,NULL);
GetClientRect(main_window_handle,&rect);
break; case WM_TIMER:
        time=CTime::GetCurrentTime();
break;    case WM_PAINT:
hdc=BeginPaint(main_window_handle,&ps);
        centerx=rect.right/2;
centery=rect.bottom/2;
        CPen Pen(PS_SOLID,5,RGB(255,255,0));
CPen *oldpen=SelectObject(hdc,&Pen);
Ellipse(hdc,5,5,rect.right-5,rect.bottom-5);
SetTextColor(hdc,RGB(255,0,0));
for(int i=0;i<=12;i++)
{
str.Format("%d",i);
size=GetTextExtent(hdc,str,str.GetLength());
Radians=(double)i*6.28/12.0;
x=centerx-(size.cx/2)+(int)((double)(centerx-20)*sin(Radians));
y=centery-(size.cy/2)-(int)((double)(centery-20)*cos(Radians));
TextOut(hdc,x,y,str);
}
Radians=(double)time.GetHour()+(double)time.GetMinute()/60.0+(double)time.GetSecond()/3600.0;
Radians*=6.28/12.0;
CPen hourpen(PS_SOLID,5,RGB(0,255,0));
SelectObject(hdc,&hourpen);
MoveTo(centerx,centery);
LineTo(hdc,centerx+(int)((double)(centerx/3)*sin(Radians)),centery-(int)((double)(centery/3)*cos(Radians)));        Radians=(double)time.GetMinute()+(double)time.GetSecond()/60.0;
Radians*=6.28/60.0;
CPen minpen(PS_SOLID,3,RGB(0,0,255));
SelectObject(hdc,&minpen);
MoveTo(centerx,centery);
LineTo(hdc,centerx+(int)((double)(centerx*2/3)*sin(Radians)),centery-(int)((double)(centery*2/3)*cos(Radians))); Radians=(double)time.GetSecond();
Radians*=6.28/60.0;
CPen secpen(PS_SOLID,1,RGB(0,255,255));
SelectObject(hdc,&secpen);
MoveTo(centerx,centery);
LineTo(hdc,centerx+(int)((double)(centerx*4/5)*sin(Radians)),centery-(int)((double)(centery*4/5)*cos(Radians)));        SelectObject(hdc,oldpen);
EndPaint(main_window_handle,&ps);
break;
default:
return(DefWindowProc(hwnd,msg,wparam,lparam));
}
return 0;
}
         int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
  // TODO: Place code here.
    WNDCLASS winclass;
HWND hwnd;
    MSG msg; winclass.style=0;
winclass.cbClsExtra=0;
winclass.cbWndExtra=0;
winclass.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.hCursor=LoadCursor(NULL,IDC_ARROW);
winclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
winclass.lpfnWndProc=WinProc;
winclass.hInstance=hInstance;
winclass.lpszClassName=window_class_name;
winclass.lpszMenuName=NULL; if(!RegisterClass(&winclass))
return (0); if(!(hwnd=CreateWindow(window_class_name,
                   "clock",
   WS_OVERLAPPEDWINDOW,
   0,0,
   300,300,
   NULL,
   NULL,
   hInstance,
   NULL)))
    return (0);
     ShowWindow(hwnd,nCmdShow);
 UpdateWindow(hwnd);     main_window_handle=hwnd;
     main_instance=hInstance;
while(GetMessage(&msg,NULL,0,0))
    {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (msg.wParam);
}

Answer 1

拜托,程序好多变量都没声明.另外,有几个错误
GetTextExtent改为
CDC *pdc = CDC::FromHandle(hdc);
size=pdc->GetTextExtent(str,str.GetLength());
其中GetTextExtent, MoveTo一类的函数都是CDC的成员函数,需要得到响应的CDC,具体参考MSDNCPen *oldpen=SelectObject(hdc,&Pen);改为
CPen *oldpen=(CPen*)SelectObject(hdc,&Pen);

Answer 2

// 一塌糊涂.cpp : Defines the entry point for the application.
//#include <stdafx.h>
//#include <afx.h>
#include "math.h"
#define window_class_name  "clock"
HWND main_window_handle;
HINSTANCE main_instance;
CTime g_time;LRESULT CALLBACK WinProc(HWND hwnd,
 UINT msg,
 WPARAM wparam,
 LPARAM lparam)
{
CSize size;
RECT rect = {0};
PAINTSTRUCT ps = {0};
HDC hdc = NULL;
CString str;
int centerx = 0;
int centery = 0;
double Radians = 0; switch(msg)
{
case WM_CREATE:
        SetTimer(hwnd,1,1000,NULL);
        g_time=CTime::GetCurrentTime();
GetClientRect(main_window_handle,&rect);
break; case WM_TIMER:
        g_time=CTime::GetCurrentTime();
break;    case WM_PAINT:
{
INT x = 0, y = 0;

hdc=BeginPaint(hwnd,&ps);
CDC *pdc = CDC::FromHandle(hdc);
centerx=rect.right/2;
centery=rect.bottom/2;
CPen Pen(PS_SOLID,5,RGB(255,255,0));
CPen *oldpen=(CPen*)SelectObject(hdc,&Pen);
Ellipse(hdc,5,5,rect.right-5,rect.bottom-5);
SetTextColor(hdc,RGB(255,0,0));
for(int i=0;i<=12;i++)
{
str.Format("%d",i);
CDC *pdc = CDC::FromHandle(hdc);
size=pdc->GetTextExtent(str,str.GetLength());
Radians=(double)i*6.28/12.0;
x=(INT)(centerx-(size.cx/2)+(int)((double)(centerx-20)*sin(Radians)));
y=(INT)(centery-(size.cy/2)-(int)((double)(centery-20)*cos(Radians)));
TextOut(hdc,x,y,str, str.GetLength());
}
Radians=(double)g_time.GetHour()+(double)g_time.GetMinute()/60.0+(double)g_time.GetSecond()/3600.0;
Radians*=6.28/12.0;
CPen hourpen(PS_SOLID,5,RGB(0,255,0));
SelectObject(hdc,&hourpen);
pdc->MoveTo(centerx,centery);
pdc->LineTo(centerx+(int)((double)(centerx/3)*sin(Radians)),centery-(int)((double)(centery/3)*cos(Radians))); Radians=(double)g_time.GetMinute()+(double)g_time.GetSecond()/60.0;
Radians*=6.28/60.0;
CPen minpen(PS_SOLID,3,RGB(0,0,255));
SelectObject(hdc,&minpen);
pdc->MoveTo(centerx,centery);
pdc->LineTo(centerx+(int)((double)(centerx*2/3)*sin(Radians)),centery-(int)((double)(centery*2/3)*cos(Radians))); Radians=(double)g_time.GetSecond();
Radians*=6.28/60.0;
CPen secpen(PS_SOLID,1,RGB(0,255,255));
SelectObject(hdc,&secpen);
pdc->MoveTo(centerx,centery);
pdc->LineTo(centerx+(int)((double)(centerx*4/5)*sin(Radians)),centery-(int)((double)(centery*4/5)*cos(Radians))); SelectObject(hdc,oldpen);
EndPaint(main_window_handle,&ps);
}
break;
default:
return(DefWindowProc(hwnd,msg,wparam,lparam));
}
return 0;
}
         int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
  // TODO: Place code here.
    WNDCLASS winclass;
HWND hwnd;
    MSG msg; winclass.style=0;
winclass.cbClsExtra=0;
winclass.cbWndExtra=0;
winclass.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.hCursor=LoadCursor(NULL,IDC_ARROW);
winclass.hIcon=LoadIcon(NULL,IDI_APPLICATION);
winclass.lpfnWndProc=WinProc;
winclass.hInstance=hInstance;
winclass.lpszClassName=window_class_name;
winclass.lpszMenuName=NULL; if(!RegisterClass(&winclass))
return (0); if(!(hwnd=CreateWindow(window_class_name,
                   "clock",
   WS_OVERLAPPEDWINDOW,
   0,0,
   300,300,
   NULL,
   NULL,
   hInstance,
   NULL)))
    return (0);
     ShowWindow(hwnd,nCmdShow);
 UpdateWindow(hwnd);     main_window_handle=hwnd;
     main_instance=hInstance;
while(GetMessage(&msg,NULL,0,0))
    {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (msg.wParam);
}真是一塌糊涂,修改后的

Answer 3

楼上的朋友，我编译了你改后的，出现三个错：D:\Vc\MSDev98\myproject\clock\clock.cpp(7) : error C2146: syntax error : missing ';' before identifier 'g_time'
D:\Vc\MSDev98\myproject\clock\clock.cpp(7) : error C2501: 'CTime' : missing storage-class or type specifiers
D:\Vc\MSDev98\myproject\clock\clock.cpp(7) : fatal error C1004: unexpected end of file found
Error executing cl.exe.clock.obj - 3 error(s), 0 warning(s)
是不是没有包含CTime的头文件？

Answer 4

1.将你stdafx.h里面的头文件替换成
//#include <windows.h>
#include <afxwin.h>         // MFC core and standard components2.在编译设置中C/C++页，code generation中的use run time library选debug multiThreaded

Answer 5

为什么程序必须进行以下设置才能运行？？？
在编译设置中C/C++页，code generation中的use run time library选debug multiThreaded

Answer 6

1,少了";"
2.#include "time.h"
试试