#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

long WINAPI WndProc(HWND hWnd,UINT iMessage,UINT wParam,LONG lParam);
BOOL InitWindowsClass(HINSTANCE hInstance);
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);
HWND hWndMain;

//主函数
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG Message;
if(!InitWindowsClass(hInstance))
return false;
if(!InitWindows(hInstance,nCmdShow))
return false;
while(GetMessage(&Message,0,0,0))
{
TranslateMessage(&Message);
DispatchMessage(&Message);
}
return Message.wParam;
}

//消息处理函数
long WINAPI WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
LONG lParam)
{
HDC hDC;
HPEN hPen;
PAINTSTRUCT PtStr;
switch(iMessage)
{
case WM_PAINT:
hDC=BeginPaint(hWnd,&PtStr);
hPen=CreatePen(PS_SOLID,2,RGB(255,0,0));
SelectObject(hDC,hPen);
MoveTo(hDC,0,50);
LineTo(hDC,50,50);
DeleteObject(hPen);
EndPaint(hWnd,&PtStr);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
default: return DefWindowProc(hWnd,iMessage,wParam,lParam);
}
}

BOOL InitWindows(HINSTANCE hInstance,int nCmdShow)
{
HWND hWnd;
hWnd=CreateWindow("WinText",
"文本显示程序",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
0,
CW_USEDEFAULT,
0,
NULL,
NULL,
hInstance,
NULL);
if(!hWnd)
return false;
hWndMain=hWnd;
ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}

//初始化窗口类
BOOL InitWindowsClass(HINSTANCE hInstance)
{
WNDCLASS WndClass;
WndClass.style=0;
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="WinText";
return RegisterClass(&WndClass);
}

错误：E:\VC\text\EX_04\DFA.CPP(45) : error C2065: 'MoveTo' : undeclared identifier
帮我看看MoveTo
是不是我的用法有误?