Problem description:
This project through the Socket communication access to the longitude and latitude data of terminal transmission, need to be done by calling the baidu map data real-time calibration, however, baidu map API call is in MFC HTML file using Java script to write a file, in js for the creation of the map and according to the longitude and latitude of real-time calibration, my question is: how will the Socket communication mode to obtain the latitude and longitude data (this section is written by c + +) is passed to the HTML js?
For you help, the younger brother grateful,

CodePudding user response:

I don't know what do you want from the server or from the client to add, but that I have used in two ways, the service side I am by the latitude and longitude and device ID write to share files with a line of string, then the server backstage regularly read this file to get the latest GPS data, the client is passing data through a com component sends messages to the client, the parameter is the ID string contains latitude and longitude and equipment, also made a program to help a friend a few days ago, replace the client interface of words and images, IE I was achieved by BHO, you can use the BHO javascript calls to the current Internet explorer document, the hope can help you,

CodePudding user response:

Client to insert the ie control, access to baidu map, called directly baidu map API,

CodePudding user response:

Through the webbrowser - pass data to js

CodePudding user response:

http://blog.csdn.net/charlessimonyi/article/details/18447471

CodePudding user response:

http://bbs.csdn.net/topics/392320388

 
CWebBrowser20 m_WebBrowser; 
IHTMLDocument2 * m_pIHTMLDoc; 
M_WebBrowser. Navigate2 (& amp; CComVariant (_T (" about: blank ")), NULL, NULL, NULL, NULL); 
M_WebBrowser. Put_Silent (TRUE); 

LoadHTML (" HTML code ", length); 
//get the Document refers to the clock 
CComPtr PDocument=m_WebBrowser. Get_Document (); 
If (pDocument) 
{
If (m_pIHTMLDoc) 
{
M_pIHTMLDoc - & gt; Release (); 
M_pIHTMLDoc=NULL; 
} 

PDocument - & gt; QueryInterface (IID_IHTMLDocument2, (void * *) & amp; M_pIHTMLDoc); 
} 

//JS function called 
If (m_pIHTMLDoc) 
{
CComPtrIf (S_OK==m_pIHTMLDoc - & gt; Get_parentWindow (& amp; PHTMLWindow) & amp; & PHTMLWindow) 
{
The VARIANT ret. 
PHTMLWindow - & gt; ExecScript (CComBSTR (" JS function "), CComBSTR (" JScript "), & amp; Ret); 
} 
} 

//================================================
//load the HTML code to the component 

Void LoadHTML (LPVOID pData, int nLen) 
{
CComPtr SpDoc (m_WebBrowser get_Document ()); 
If (NULL==spDoc | | NULL==pData) 
{
return; 
} 

//get IPersistStreamInit pointer 
CComQIPtrIf (NULL==spPSI) 
{
return; 
} 

//the application memory, copy the HTML string 
LPSTR lpMemory=(LPSTR) : : GlobalAlloc (GPTR, nLen + 1); 
ZeroMemory (lpMemory nLen + 1); 
Memcpy (lpMemory, pData, nLen); 

//convert the memory to stream object pointer 
CComPtr SpStream; 
Retrieves the hr=CreateStreamOnHGlobal (lpMemory, TRUE, & amp; SpStream); 
If (FAILED (hr) | |! SpStream) 
{
return; 
} 

//after the initialization, loading according to 
Hr=spPSI - & gt; InitNew (); 
If (FAILED (hr)) 
{
return; 
} 

Hr=spPSI - & gt; Load (spStream); 
If (FAILED (hr)) 
{
return; 
} 
} 

CodePudding user response:

http://bbs.csdn.net/topics/392320388
To the code, direct COPY down to save

CodePudding user response:

Baidu map code, will give you the data through the above code is loaded into the control, can realize the transition of positioning, js function call

 
 
 
<meta HTTP - equiv="content-type" Content="text/HTML. Charset=utf-8 "/& gt; 
<meta name="viewport" content="initial - scale=1.0, user - scalable=no"/& gt; 
<style type="text/css"> 
Body, HTML, # baiduMaps {width: 100%; height: 100%; overflow: hidden; margin:0; The font-family: "Microsoft jas black"; } 
# r - result {width: 100%; font-size:14px; } 
</style>