Visual studio wont work with "MoveTo" (win32api) - winapi

Question

Here's the code below, VS said that on
line 109 ( MoveTo(hdc, x, y);
"MoveTo" is undefined.
Can someone explain me what's wrong ?
This is a win32api application.
// Win32Project.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "Win32Project4.h"
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
LRESULT CALLBACK ChildWndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int pNum = 0;
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
const WCHAR szAppName[] = L"Third_LAB";
const WCHAR szChildClass[] = L"Child";
HWND hwnd;
MSG msg;
WNDCLASSEX wndclass;
wndclass.cbSize = sizeof(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_CROSS);
wndclass.hbrBackground = (HBRUSH)(NULL_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName;
wndclass.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_SMALL));
RegisterClassEx(&wndclass);
wndclass.lpfnWndProc = ChildWndProc;
wndclass.cbWndExtra = sizeof(WORD);
wndclass.hIcon = NULL;
wndclass.lpszClassName = szChildClass;
wndclass.hIconSm = NULL;
RegisterClassEx(&wndclass);
hwnd = CreateWindowEx(
0,
szAppName, // window class name
L"Third_LAB", // window caption
WS_OVERLAPPEDWINDOW | WS_VSCROLL | WS_HSCROLL, // window style
200, // initial x position
150, // initial y position
800, // initial x size
500, // 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, 0, 0, 0))
DispatchMessage(&msg);
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
{
const WCHAR szChildClass[] = L"Child";
static int cxBlock, cyBlock;
static HDC hdc;
static HPEN hPen;
static BOOL track = FALSE;
static HWND hwndCH;
static int x, y;
switch (iMsg) {
case WM_CREATE:
hdc = GetDC(hwnd);
hwndCH = CreateWindow(szChildClass, NULL,
WS_CHILDWINDOW | WS_VISIBLE,
0, 0, cxBlock / 2 + 3, cyBlock + 3,
hwnd, NULL,
(HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE),
NULL);
MoveWindow(hwndCH, 0, 0, cxBlock / 2 + 3, cyBlock + 3, NULL);
return 0;
case WM_SIZE:
cxBlock = LOWORD(lParam);
cyBlock = HIWORD(lParam);
MoveWindow(hwndCH, 0, 0, cxBlock / 2 + 3, cyBlock + 3, NULL);
return 0;
case WM_KEYDOWN:
switch (wParam)
{
case (0x51):
PostQuitMessage(0);
break;
}
return 0;
case WM_LBUTTONDOWN:
track = TRUE;
x = LOWORD(lParam);
y = HIWORD(lParam);
MoveTo(hdc, x, y);
switch (pNum)
{
case (1):
hPen = CreatePen(PS_SOLID, 5, 0);
SelectObject(hdc, hPen); break;
case (2):
hPen = CreatePen(PS_SOLID, 15, 0);
SelectObject(hdc, hPen); break;
case (3):
hPen = CreatePen(PS_SOLID, 25, 0);
SelectObject(hdc, hPen); break;
}
return 0;
case WM_LBUTTONUP:
track = FALSE;
DeleteObject(hPen);
return 0;
case WM_MOUSEMOVE:
if (track)
{
x = LOWORD(lParam);
y = HIWORD(lParam);
LineTo(hdc, x, y);
MoveTo(hdc, x, y);
}
return 0;
case WM_DESTROY:
ReleaseDC(hwnd, hdc);
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, iMsg, wParam, lParam);
}
}
LRESULT CALLBACK ChildWndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
static HDC hdc;
PAINTSTRUCT ps;
static int cxBlock, cyBlock;
static int x, y;
static HPEN hPen;
switch (iMsg)
{
case WM_SIZE:
hdc = GetDC(hwnd);
cxBlock = LOWORD(lParam);
cyBlock = HIWORD(lParam);
InvalidateRect(hwnd, NULL, TRUE);
ReleaseDC(hwnd, hdc);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
SetROP2(hdc, R2_BLACK);
Rectangle(hdc, 0, cyBlock / 2 - 100, cxBlock, cyBlock / 2 - 105);
Rectangle(hdc, 0, cyBlock / 2, cxBlock, cyBlock / 2 - 15);
Rectangle(hdc, 0, cyBlock / 2 + 100, cxBlock, cyBlock / 2 + 125);
InvalidateRect(hwnd, NULL, FALSE);
break;
case WM_RBUTTONDOWN:
x = LOWORD(lParam);
y = HIWORD(lParam);
if ((y <= (cyBlock / 2 - 100)) && (y >= (cyBlock / 2 - 105)))
pNum = 1;
else if ((y <= (cyBlock / 2)) && (y >= (cyBlock / 2 - 15)))
pNum = 2;
else if ((y >= (cyBlock / 2 + 100)) && (y <= (cyBlock / 2 + 125)))
pNum = 3;
return 0;
case WM_DESTROY:
DeleteObject(hPen);
ReleaseDC(hwnd, hdc);
DestroyWindow(hwnd);
return 0;
}
return DefWindowProc(hwnd, iMsg, wParam, lParam);
Waiting for a fast response, I would be very glad.

Answer 1

MoveTo() is a Windows 3.x function that is no longer supported. Use MoveToEx() instead, setting the last argument to NULL. You can define your own MoveTo() to do that, eg:
#define MoveTo(hdc, x, y) ((void)MoveToEx(hdc, x, y, NULL))
Or:
inline void MoveTo(HDC hdc, int X, int Y) { MoveToEx(hdc, X, Y, NULL); }