不知道什么错误，求高手帮忙！！！！

[yao_smile]

#include<windows.h>

#include<stdlib.h>

#include<string.h>

#include<math.h>

#define PI 3.1415926

long WINAPI WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
UINT lParam);

double dfTheta = 0, dfRange = 100.0;

long i = 0, j = 0;

long lCentreX = 0, lCentreY = 0, lRadious = (long)(0.2 * dfRange);

POINT lpSin[100];

int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG Message;

HWND hWnd;

WNDCLASS WndClass;

WndClass.cbClsExtra = 0;

WndClass.cbWndExtra = 0;

WndClass.hIcon = LoadIcon(NULL,IDI_APPLICATION);

WndClass.hCursor = LoadCursor(NULL,IDC_ARROW);

WndClass.hbrBackground = (HBRUSH)(GetStockObject(WHITE_BRUSH));

WndClass.hInstance = hInstance;

WndClass.lpfnWndProc = WndProc;

WndClass.lpszClassName = "SIN";

WndClass.lpszMenuName = NULL;

WndClass.style = 0;

if(!RegisterClass(&WndClass))
{
MessageBeep(0);

return FALSE;
}

hWnd = CreateWindow("SIN",
"移动的圆",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
0,
CW_USEDEFAULT,
0,
NULL,
NULL,
hInstance,
NULL);

ShowWindow(hWnd,nCmdShow);

UpdateWindow(hWnd);

for(int j = 0; j < 100; j++)
{
lpSin[j].x = (long)(j * 2 * PI / 100 *60);

lpSin[j].y = (long)(dfRange * sin(j * 2 *PI / 100));
}

while(GetMessage(&Message, 0, 0, 0))
{
TranslateMessage(&Message);

DispatchMessage(&Message);
}
return Message.wParam;
}

long WINAPI WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
LONG lParam)
{
HDC hDC;

HBRUSH hBrush;

HPEN hPen;

PAINTSTRUCT PtStr;

switch(iMessage)
{
case WM_PAINT:

hDC = BeginPaint(hWnd, &PtStr);

SetWindowOrgEx(hDC, -200, -200, NULL);

hPen = CreatePen(PS_DASH, 1, RGB(255, 0, 0));

SelectObject(hDC, hPen);

Polyline(hDC, lpSin, 100);

if(i <= 25)
{
hPen = CreatePen(PS_DASH, 1, RGB(255, 0, 0));

hBrush = CreateHatchBrush(HS_BDIAGONAL, RGB(255, 0 ,0));

lRadious = (long)(dfRange * 0.2 + i % 25 * dfRange *0.4 / 25);
}

else if(i <= 50)
{
hPen = CreatePen(PS_DASH, 1, RGB(0, 255, 0));

hBrush = CreateHatchBrush(HS_BDIAGONAL, RGB(0, 255 ,0));

lRadious = (long)(dfRange * 0.2 + i % 25 * dfRange *0.4 / 25);
}

else if(i <= 75)
{
hPen = CreatePen(PS_DASH, 1, RGB(0, 0, 255));

hBrush = CreateHatchBrush(HS_BDIAGONAL, RGB(0, 0, 255));

lRadious = (long)(dfRange * 0.2 + i % 25 * dfRange *0.4 / 25);
}

else
{
hPen = CreatePen(PS_DASH, 1, RGB(255, 255, 0));
hBrush = CreateHatchBrush(HS_BDIAGONAL, RGB(255, 255, 0));
lRadious = (long)(dfRange * 0.2 + i % 25 * dfRange *0.4 / 25);
}

SelectObject(hDC, hBrush);

SelectObject(hDC, hPen);

lCentreX = lpSin[i].x;

lCentreY = lpSin[i].y;

Ellipse(hDC, lCentreX - lRadious, lCentreY - lRadious, lCentreX + lRadious, lCentreY + lRadious);

i++;

DeleteObject(hPen);

DeleteObject(hBrush);

EndPaint(hWnd, &PtStr);

Sleep(100);

if(i < 100) InvalidateRect(hWnd, NULL, 1);

return 0;

case WM_DESTROY:

PostQuitMessage(0);

return 0;

default:

return(DefWindowProc(hWnd, iMessage, wParam, lParam));
}
}

[fandh]

错误的现象是？

[yao_smile]

1>------ 已启动生成: 项目: sin, 配置: Debug Win32 ------
1>生成启动时间为 2011/10/17 15:16:16。
1>InitializeBuildStatus:
1> 正在对“Debug\sin.unsuccessfulbuild”执行 Touch 任务。
1>ClCompile:
1> sin.cpp
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(47): error C2440: “=”: 无法从“long (__stdcall *)(HWND,UINT,UINT,UINT)”转换为“WNDPROC”
1> 该转换要求 reinterpret_cast、C 样式转换或函数类型转换
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(49): error C2440: “=”: 无法从“const char [4]”转换为“LPCWSTR”
1> 与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(72): error C2664: “CreateWindowExW”: 不能将参数 2 从“const char [4]”转换为“LPCWSTR”
1> 与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换
1>
1>生成失败。
1>
1>已用时间 00:00:00.92
========== 生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========

[lgstudyvc]

[Quote=引用 1 楼 fandh 的回复:]
错误的现象是？
[/Quote]
这个不能告诉你

[yao_smile]

[Quote=引用 1 楼 fandh 的回复:]

错误的现象是？
[/Quote]


1>------ 已启动生成: 项目: sin, 配置: Debug Win32 ------
1>生成启动时间为 2011/10/17 15:16:16。
1>InitializeBuildStatus:
1> 正在对“Debug\sin.unsuccessfulbuild”执行 Touch 任务。
1>ClCompile:
1> sin.cpp
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(47): error C2440: “=”: 无法从“long (__stdcall *)(HWND,UINT,UINT,UINT)”转换为“WNDPROC”
1> 该转换要求 reinterpret_cast、C 样式转换或函数类型转换
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(49): error C2440: “=”: 无法从“const char [4]”转换为“LPCWSTR”
1> 与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(72): error C2664: “CreateWindowExW”: 不能将参数 2 从“const char [4]”转换为“LPCWSTR”
1> 与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换
1>
1>生成失败。
1>
1>已用时间 00:00:00.92
========== 生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========

[lgstudyvc]

恩,参数没按照人的写,要转换

[yao_smile]

[Quote=引用 5 楼 lgstudyvc 的回复:]

恩,参数没按照人的写,要转换
[/Quote]

怎么转换呢？

[lgstudyvc]

(LPCTSTR)(LPTSTR)

[酱油党]

[Quote=引用 7 楼 lgstudyvc 的回复:]
(LPCTSTR)(LPTSTR)
[/Quote](LPCWSTR)(LPTSTR)

[向立天]

long CALLBACK WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
UINT lParam);
改成
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

[yao_smile]

[Quote=引用 9 楼 xianglitian 的回复:]

long CALLBACK WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
UINT lParam);
改成
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
[/Quote]
改了之后，为什么在vs2010中编译不过呢？显示这样的错误

> sin.cpp
1>e:\study\c++\预备文件夹\sin\sin\sin.cpp(76): error C2664: “CreateWindowExW”: 不能将参数 2 从“const char [4]”转换为“LPCWSTR”
1> 与指向的类型无关；转换要求 reinterpret_cast、C 样式转换或函数样式转换

但是在vc6.0中能通过，求解答？

[向立天]

[Quote=引用 10 楼 yao_smile 的回复:]

引用 9 楼 xianglitian 的回复:

long CALLBACK WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
UINT lParam);
改成
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

改了之后，为什么在vs2010中编译不过呢？显示这样的错误

……
[/Quote]
6.0默认工程字符集是ASCII
2010默认工程字符集是Unicode

[yao_smile]

[Quote=引用 11 楼 xianglitian 的回复:]
引用 10 楼 yao_smile 的回复:

引用 9 楼 xianglitian 的回复:

long CALLBACK WndProc(HWND hWnd,
UINT iMessage,
UINT wParam,
UINT lParam);
改成
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

改了之后，为什……
[/Quote]

怎么才能在2010中编译中通过呢？需要改动什么呢？期待你的回答~~~~