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isabc — Fri, 17 Oct 2008 15:27:00 GMT

摘要: VC6.0中用ATL生成的全局变量_Module,
CComModule _Module;
可以调用_Module.GetResourceInstance();

用VS2005生成时�ؓ_AtlModule,
COutLookAddinModule _AtlModule
不能调用GetResourceInstance();怎么办？
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isabc 2008-10-17 23:27 发表评论

error LNK2001: unresolved external symbol _main解决办法

isabc — Tue, 14 Oct 2008 14:07:00 GMT

解决外部�W�号错误:_main,_WinMain@16,__beginthreadex -!t'my`yK
在创建MFC��目�? 不��用MFC AppWizard向导, 如果没有柚煤孟钅坎问? ��׃��在编译时产生很多�q�接错误, 如error LNK2001错误, 典型的错误提�C�有: m1+4#'
libcmtd.lib(crt0.obj) : error LNK2001: unresolved external symbol _main (gd){j
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16 OuR5T>>
msvcrtd.lib(crtexew.obj) : error LNK2001: unresolved external symbol _WinMain@16 *_g+&Us1
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex }t,6 oT
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex
]wpN"w"
1. Windows子系�l�设�|�错�? 提示: )WA5FzPLw
libcmtd.lib(crt0.obj) : error LNK2001: unresolved external symbol _main *+oJ(e
4f{'{1]\
Windows��目要��用Windows子系�l? 而不是Console, 可以�q�样讄��: *^'y#/Dg
z !DF-%3|
[Project] --> [Settings] --> 选择"Link"属性页, Qo!
在Project Options中将/subsystem:console�Ҏ��/subsystem:windows   T`H.k"Y{
Xn?{t*{
2. Console子系�l�设�|�错�? 提示: vwK 7b0M
LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16 4Y~E`L0,
8%P ><"
控制台项目要使用Console子系�l? 而不是Windows, 讄��: *Cl5Y':|h
sipSn4_
[Project] --> [Settings] --> 选择"Link"属性页, WveN']q\
在Project Options中将/subsystem:windows�Ҏ��/subsystem:console BR4C@Z
1 vBkC&
3. �E�序入口讄��错误, 提示: dy2$&$=
msvcrtd.lib(crtexew.obj) : error LNK2001: unresolved external symbol _WinMain@16 sP.>uExt
G- (k~1q
通常, MFC��目的程序入口函数是WinMain, 如果�~�译��目的Unicode版本, �E�序入口必须改�ؓwWinMainCRTStartup, 所以需要重新设�|�程序入�? r#~P5[aV
Os hl6 i
[Project] --> [Settings] --> 选择"Link"属性页, "1zk_#B*
在Category中选择Output, p HGRL
再在Entry-point symbol中填入wWinMainCRTStartup, 卛_�� >IC}SZ
F)c[@\.dm
4. �U�程�q�行时库讄��错误, 提示: X;t_- f
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __beginthreadex AmiBqZTp
nafxcwd.lib(thrdcore.obj) : error LNK2001: unresolved external symbol __endthreadex sz 23_{c?
oz! {Fd-
�q�是因�ؓMFC要��用多�U�程时库, 需要更改设�|? L a-Y,1x](
uAk>h^pbM
[Project] --> [Settings] --> 选择"C/C++"属性页, '%ET|1#SO
在Category中选择Code Generation, ;Y-M)k(
再在Use run-time library中选择Debug Multithreaded或者multithreaded 0v~5
咔R��怾�(75374355) 12:11:11
其中, W_qa?Jv
Single-Threaded                单线�E�静态链接库(release版本) Kh4w Q
Multithreaded                  多线�E�静态链接库(release版本) |F]g[En 4
multithreaded DLL              多线�E�动态链接库(release版本) s-'qYgA6p
Debug Single-Threaded          单线�E�静态链接库(debug版本) _ 7w_./y
Debug Multithreaded            多线�E�静态链接库(debug版本) <[ ePw
Debug Multithreaded DLL        多线�E�动态链接库(debug版本) H8V/O9|(
9^x@/
单线�E? 不需要多�U�程调用�? 多用在DOS环境�?span class=copyctrl style="FONT-SIZE: 0pt"> /PJ|d5
多线�E? 可以�q�发�q�行 clUdag,C
静态库: 直接��库与程序Link, 可以��q��MFC库运�?span class=copyctrl style="FONT-SIZE: 0pt"> X]pEmHl
动态库: 需要相应的DLL动态库, �E�序才能�q�行 \n{&_:b+q
release版本: 正式发布时��?span class=copyctrl style="FONT-SIZE: 0pt"> 9J;ZZ/3
debug版本: 调试阶段使用   k9PoFC#k

isabc 2008-10-14 22:07 发表评论

isabc — Sun, 25 May 2008 13:50:00 GMT

//定义的结构体如下�Q?nbsp;
typedef struct arp_header{
//-----------------------DLC Header----------------------------------------
unsigned char  DesMAC[6]; //目标MAC
unsigned char  SrcMAC[6]; //源MAC
unsigned short EtherType; //EtherType默认�?x0806是ARP帧的�c�d��?nbsp;
//-----------------------ARP Frame-----------------------------------------
unsigned short HW_Type; //��g�c�d��
unsigned short Prot_Type; //上层协议�c�d��
unsigned char  HW_Addr_Len; //MAC地址长度
unsigned char  Prot_Addr_Len; //IP地址�c�d��
unsigned short Opcode; //操作�?nbsp; 0x01表示ARP��h��?nbsp;0x02表示RARP应答�?nbsp;

unsigned char  Send_MAC_Addr[6]; //发送方MAC
unsigned long  Send_IP_Addr; //发送方IP
unsigned char  Targ_MAC_Addr[6];//接收方MAC
unsigned long  arg_IP_Addr; //接受方IP
unsigned char  padding[18]; //填充数据
}ARPHEADER,*PARPHEADER;

填充�Q?nbsp;
m_ARPHdr = new ARPHEADER;
//--------------------------------填充ARP�?-------------------------------
m_ARPHdr->DesMAC[0] = 0Xff;
m_ARPHdr->DesMAC[1] = 0Xff;
m_ARPHdr->DesMAC[2] = 0Xff;
m_ARPHdr->DesMAC[3] = 0Xff;
m_ARPHdr->DesMAC[4] = 0Xff;
m_ARPHdr->DesMAC[5] = 0Xff;

m_ARPHdr->SrcMAC[0] = 0X00;
m_ARPHdr->SrcMAC[1] = 0X08;
m_ARPHdr->SrcMAC[2] = 0X02;
m_ARPHdr->SrcMAC[3] = 0XDB;
m_ARPHdr->SrcMAC[4] = 0X3B;
m_ARPHdr->SrcMAC[5] = 0X95;

m_ARPHdr->EtherType = 0X0608;
// m_ARPHdr->

m_ARPHdr->HW_Type =0X0100; //��g�c�d��
m_ARPHdr->Prot_Type  = 0X0008; //上层协议�c�d��
m_ARPHdr->HW_Addr_Len = 0X06; //MAC地址长度
m_ARPHdr->Prot_Addr_Len =0X04; //IP地址�c�d��
m_ARPHdr->Opcode = 0X0100; //操作�?nbsp; 0x01表示ARP��h��?nbsp;0x02表示RARP应答�?nbsp;

// m_ARPHdr->Send_MAC_Addr[6]; //发送方MAC
m_ARPHdr->Send_MAC_Addr[0] = 0X00;
m_ARPHdr->Send_MAC_Addr[1] = 0X08;
m_ARPHdr->Send_MAC_Addr[2] = 0X02;
m_ARPHdr->Send_MAC_Addr[3] = 0XDB;
m_ARPHdr->Send_MAC_Addr[4] = 0X3B;
m_ARPHdr->Send_MAC_Addr[5] = 0X95;
m_ARPHdr->Send_IP_Addr =  inet_addr("192.168.11.162"); //发送方IP
// m_ARPHdr->Targ_MAC_Addr[6];//接收方MAC
m_ARPHdr->Targ_MAC_Addr[0] = 0X00;
m_ARPHdr->Targ_MAC_Addr[1] = 0X00;
m_ARPHdr->Targ_MAC_Addr[2] = 0X00;
m_ARPHdr->Targ_MAC_Addr[3] = 0X00;
m_ARPHdr->Targ_MAC_Addr[4] = 0X00;
m_ARPHdr->Targ_MAC_Addr[5] = 0X00;
m_ARPHdr->arg_IP_Addr = inet_addr("192.168.11.154"); //接受方IP
//m_ARPHdr->padding[18] ; //填充数据
memset(&(m_ARPHdr->padding[0]),0,18);

//填充后m_ARPHdr 值如下：
//FF FF FF FF FF FF 00 08 02 DB 3B 95 08 06 00 01 08 00 06 04 00 01 00 08 02 DB 3B 95 C0 A8 0B A2 00 00 00 00 00 00 C0 A8 0B 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
//转换�Q?nbsp;
u_char* packet = (u_char*)m_ARPHdr;
//转换后packet�{�于
//FF FF FF FF FF FF 00 08 02 DB 3B 95 08 06 00 01 08 00 06 04 00 01 00 08 02 DB 3B 95 C0 A8 0B A2 00 00 00 00 00 00 CD CD C0 A8 0B 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

//而且�q�有一个问题：
int n = sizeof(ARPHEADER);
//�{�于64�Q�而不�?0

��Z��么C0 A8 0B 02前怎么不是CD CD

isabc 2008-05-25 21:50 发表评论

strcpy()赋值和直接赋值的区别

isabc — Wed, 30 Jan 2008 05:35:00 GMT

在�\�?nbsp;11:32:01
struct stUserListNode
{
    char userName[10];
    unsigned int ip;
    unsigned short port;
};
在�\�?nbsp;11:32:59
如何把一个CString赋值给userName
��阔天高 11:33:30
strcpy
在�\�?nbsp;11:43:38
stUserListNode *NodeMsg = new stUserListNode;
strcpy(NodeMsg.userName, strName);
在�\�?nbsp;11:43:46
哥们�q�样不行
在�\�?nbsp;11:43:58
error C2228: left of '.userName' must have class/struct/union type
鱼绕落水�?nbsp;11:45:26
lstrcpy(对象.userName,CString变量.GetBuffer(CString变量.Getlength());
��阔天高 11:45:27
strcpy(NodeMsg.userName, strName.GetBuffer());
��p��Pickle 11:59:21
NodeMsg是指�?nbsp;��L��-> �Q?nbsp;strName.getbuffer是正�?br>在�\�?nbsp;12:11:52
strcpy( NodeMsg->userName, strName.GetBuffer(strName.GetLength()))
在�\�?nbsp;12:11:57
OK�?br>在�\�?nbsp;12:12:30
NodeMsg->userName = strName.GetBuffer(strName.GetLength());

一开始我用这个不�?br>在�\�?nbsp;12:12:39
两者区别主要是什�?br>��p��Pickle 12:58:46
GetBuffer是没有参数的函数
��p��Pickle 12:59:18
他只是获取CString里面数据区的char* 首地址
��p��Pickle 13:00:44
所以你不知直接用NodeMsg->userName拯��地址�Q�必��ȝ��请另外的�I�间存放�Q�不然你的strName一析构你的NodeMsg->userName��变成野指针�?br>��p��Pickle 13:00:57
所以你不能直接用NodeMsg->userName拯��地址�Q�必��ȝ��请另外的�I�间存放�Q�不然你的strName一析构你的NodeMsg->userName��变成野指针�?nbsp;
在�\�?nbsp;13:20:49
谢谢�Q?/span>

isabc 2008-01-30 13:35 发表评论

isabc — Thu, 17 Jan 2008 08:08:00 GMT

在�\�?lt;isabc@qq.com> 15:57:02
CString strMsg = "ok1ok2ok3ok4";
  char* Buffer = strMsg.GetBuffer(strMsg.GetLength());
  int n = sizeof(Buffer);
在�\�?lt;isabc@qq.com> 15:57:31
n怎么�{�于4
寻�\�?158989725) 15:57:51
  int n = sizeof(Buffer);
在�\�?lt;isabc@qq.com> 15:57:55
可以�q�样求吗�Q?br>寻�\�?158989725) 15:58:13
Buffer是个指针.�?2位机器上��是4个字�?br>Pinck(258360502) 15:58:17
指针.
在�\�?lt;isabc@qq.com> 15:58:14
�q�样啊！

Pinck(258360502) 15:58:25
用strlen
在�\�?lt;isabc@qq.com> 15:58:16
谢谢
沧�v一�_?17023666) 16:01:49
��是�q�样�?br>在�\�?lt;isabc@qq.com> 16:03:37
如果是数�l�就可以对吧
在�\�?lt;isabc@qq.com> 16:03:54
char buffer[1024] = {"ok1ok2ok3ok4"};
在�\�?lt;isabc@qq.com> 16:04:06
sizeof(buffer)
在�\�?lt;isabc@qq.com> 16:04:15
�q�样可以得到实际长度�?br>Pinck(258360502) 16:04:49
不能.
Pinck(258360502) 16:04:59
长度�?024
在�\�?lt;isabc@qq.com> 16:05:05
�q�样啊！�Q?br>沧�v一�_?17023666) 16:06:23
如果�q�样��p��
sizeof和strlen有区�?br>如果�q�样可以�?br>char buffer[]={"ok1ok2ok3ok4"};
sizeof(buffer);
沧�v一�_?17023666) 16:07:00
在网上有好帖子讲�q�个很详�l�的�?br>可以搜烦看下

先把错误�q�程贴出来。有旉��再分析下�Q?

isabc 2008-01-17 16:08 发表评论

isabc — Fri, 07 Sep 2007 09:11:00 GMT

摘要: 如何处理�q�个字符串str=�?1,陆亚�?19200,FFFF,1,0,0,0,0,0,4,3”，�Ҏ��逗号�Q�取出每个逗号间的信息�Q?
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isabc 2007-09-07 17:11 发表评论

Unhandled exception in EastR.exe (MFC42D.DLL) :0xC0000005;Access Violation

isabc — Wed, 29 Aug 2007 09:09:00 GMT

摘要: 1、编译没有错误�?
--------------------Configuration: EastR - Win32 Debug--------------------

EastR.exe - 0 error(s), 0 warning(s)

2、运行到某一个函数报�?

3、调试到int m_ClockNo = atoi(NewNo->GetItemText(0,0).GetBuffer(NewNo->GetItemText(0,0).GetLength()));
报Unhandled exception in EastR.exe (MFC42D.DLL) :0xC0000005;Access Violation错误
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isabc 2007-08-29 17:09 发表评论