如何调用NetMessageBufferSend发送消息？
问题描述：
如何调用WINNT/2K/XP下的API函数NetMessageBufferSend模拟net send命令来发送消息？
解决方案：
下面代码已测试成功，直接导入PBL即可
$PBExportHeader$w_main.srw
forward
global type w_main from Window
end type
type mle_1 from multilineedit within w_main
end type
type cb_1 from commandbutton within w_main
end type
type sle_1 from singlelineedit within w_main
end type
type st_2 from statictext within w_main
end type
type st_1 from statictext within w_main
end type
end forward
type icmp_echo_reply from structure
unsignedlong address
unsignedlong status
unsignedlong roundtriptime
unsignedlong datasize
unsignedlong reserved[3]
character data[250]
end type
global type w_main from Window
int X=1056
int Y=484
int Width=1531
int Height=1152
boolean TitleBar=true
string Title="NETMESSAGESEND"
long BackColor=80269524
boolean ControlMenu=true
boolean MinBox=true
boolean Resizable=true
mle_1 mle_1
cb_1 cb_1
sle_1 sle_1
st_2 st_2
st_1 st_1
end type
global w_main w_main
type prototypes
Function ulong NetMessageBufferSend(ulong servername, ref char msgname[],ulong fromname, ref char buf[], ulong buflen) Library "netapi32.dll" Alias for "NetMessageBufferSend"
Function ulong IcmpCreateFile () Library "icmp.dll"
Function long IcmpSendEcho (ulong IcmpHandle, ulong DestinationAddress, string RequestData,long RequestSize, long RequestOptions, Ref icmp_echo_reply ReplyBuffer, long ReplySize, long Timeout ) Library "icmp.dll" Alias for "IcmpSendEcho"
Function long IcmpCloseHandle (ulong IcmpHandle) Library "icmp.dll"
Function ulong inet_addr (string cp) Library "ws2_32.dll" Alias for "inet_addr"
end prototypes
type variables
CONSTANT ulong NERR_Success = 0
end variables
forward prototypes
public subroutine wf_string_to_unicode (string as_string, ref character ac_unicode[])
public subroutine wf_string_to_unicode (string as_string, ref character ac_unicode[])
public function boolean wf_netmessagebuffersend (string as_sendto, string as_msgtext)
public function boolean wf_ping (string as_ipaddress, string as_echomsg)
end prototypes
public subroutine wf_string_to_unicode (string as_string, ref character ac_unicode[]);Integer li_loop, li_len, li_uni
li_len = Len(as_string)
FOR li_loop = 1 TO li_len
li_uni = li_uni + 1
ac_unicode[li_uni] = Mid(as_string, li_loop, 1)
li_uni = li_uni + 1
ac_unicode[li_uni] = Char(0)
NEXT
li_uni = li_uni + 1
ac_unicode[li_uni] = Char(0)
li_uni = li_uni + 1
ac_unicode[li_uni] = Char(0)
end subroutine
public function boolean wf_netmessagebuffersend (string as_sendto, string as_msgtext);Ulong lul_result, lul_buflen
Char lc_msgname[],lc_msgtext[]
wf_string_to_unicode(as_sendto, lc_msgname)
wf_string_to_unicode(as_msgtext, lc_msgtext)
lul_buflen = UpperBound(lc_msgtext)
lul_result = NetMessageBufferSend(0, lc_msgname,0, lc_msgtext, lul_buflen)
If lul_result = NERR_Success Then
Return True
Else
Return False
End If
end function
public function boolean wf_ping (string as_ipaddress, string as_echomsg);ULong lul_address, lul_handle
Long ll_rc, ll_size
String ls_reply
icmp_echo_reply lstr_reply
lul_address = inet_addr(as_ipaddress)
If lul_address > 0 Then
lul_handle = IcmpCreateFile()
ll_size = Len(as_echomsg)
ll_rc = IcmpSendEcho(lul_handle, lul_address, &
as_echomsg, ll_size, 0, &
lstr_reply, 278, 200)
IcmpCloseHandle(lul_handle)
If ll_rc <> 0 Then
If lstr_reply.Status = 0 Then
ls_reply = String(lstr_reply.Data)
If ls_reply = as_echomsg Then
Return True
End If
End If
End If
End If
Return False
end function
on w_main.create
this.mle_1=create mle_1
this.cb_1=create cb_1
this.sle_1=create sle_1
this.st_2=create st_2
this.st_1=create st_1
this.Control[]={this.mle_1,&
this.cb_1,&
this.sle_1,&
this.st_2,&
this.st_1}
end on
on w_main.destroy
destroy(this.mle_1)
destroy(this.cb_1)
destroy(this.sle_1)
destroy(this.st_2)
destroy(this.st_1)
end on
type mle_1 from multilineedit within w_main
int X=27
int Y=264
int Width=1399
int Height=604
int TabOrder=20
BorderStyle BorderStyle=StyleLowered!
long TextColor=33554432
int TextSize=-10
int Weight=400
string FaceName="方正姚体"
FontCharSet FontCharSet=GB2312CharSet!
FontPitch FontPitch=Variable!
end type
type cb_1 from commandbutton within w_main
int X=1070
int Y=904
int Width=357
int Height=108
int TabOrder=30
string Text=" 发送(&S)"
int TextSize=-10
int Weight=400
string FaceName="方正姚体"
FontCharSet FontCharSet=GB2312CharSet!
FontPitch FontPitch=Variable!
end type
event clicked;if not wf_ping(trim(sle_1.text),"") then
messagebox("提示","指定目标地址不存在或不通!")
return
end if
if wf_NetMessageBufferSend(trim(sle_1.text),trim(mle_1.text)) then
messagebox("提示","发送成功!")
else
messagebox("提示","发送失败!")
end if
end event
type sle_1 from singlelineedit within w_main
int X=430
int Y=48
int Width=997
int Height=92
int TabOrder=10
BorderStyle BorderStyle=StyleLowered!
boolean AutoHScroll=false
long TextColor=33554432
int TextSize=-10
int Weight=400
string FaceName="方正姚体"
FontCharSet FontCharSet=GB2312CharSet!
FontPitch FontPitch=Variable!
end type
type st_2 from statictext within w_main
int X=14
int Y=172
int Width=379
int Height=76
boolean Enabled=false
string Text="发送内容："
boolean FocusRectangle=false
long TextColor=33554432
long BackColor=67108864
int TextSize=-10
int Weight=400
string FaceName="方正姚体"
FontCharSet FontCharSet=GB2312CharSet!
FontPitch FontPitch=Variable!
end type
type st_1 from statictext within w_main
int X=14
int Y=52
int Width=379
int Height=76
boolean Enabled=false
string Text="目标地址："
boolean FocusRectangle=false
long TextColor=33554432
long BackColor=67108864
int TextSize=-10
int Weight=400
string FaceName="方正姚体"
FontCharSet FontCharSet=GB2312CharSet!
FontPitch FontPitch=Variable!
end type
