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Game of life WASM

brent — Thu, 07 Jan 2021 17:59:00 GMT

有�h用web assembly写了一版game of lie�Q?br />�|�站: https://playgameoflife.com/
代码: https://github.com/edwinm/game-of-life
用c语言暴力�q�算�Q�没有�Q何优化，所以虽然用了wasm�Q�速度相当不行�?br />
真正的大牛还是Alan Hensel�Q?br />

http://www.shnenglu.com/aqazero/archive/2005/07/22/14207.html

可惜现在要运行java applet没那么容�?br />

https://madewithwebassembly.com/

web assembly的网站列表�?br />
其中列出来的一些知名项目：
Google 的tensorflow js, Google Earth, SketchUp
AutoCAD �?nbsp;web app
Unity 3d 游戏引擎
Doom3 demo�Q�烧昑֍�3d游戏
Microsoft 的blazor也在其中
�q�有一个不知名�Q�但有趣的game of life游戏(虽然用了c语言写wasm�Q�但��法毫无优化)
嗯，居然�q�有Diablo I

可以通过关键字搜�?/div>

brent 2021-01-08 01:59 发表评论

Visual Studio + IIS Express debug problem.

brent — Wed, 12 Feb 2020 00:35:00 GMT

Created a simple MVC project in VS 2019, when I clicked debug, it either popped up a "process with and Id of is not running" message box or show ERR_CONNECTION_RESET error in the browser.

unstalling/reinstalling IIS express, deleting IIS configuration files, deleting the hidden .vs folder under the project, none of this worked.

I started IIS Express in CMD, it showed the message : Unable to launch the IIS Express Web server. The format of the specified network name is invalid - 0x800704BE

Found this link http://habjan.blogspot.com/2014/02/visual-studio-2013-unable-to-launch-iis.html and followed the instuctions:

1. check the IP address bindings by opening command prompt in admin mode and running this command:

netsh http show iplisten

this showed me that the service is listening only 192.168.1.3.

2. then I went to delete this binding by running this command:

netsh http delete iplisten ipaddress=192.168.1.3.

3. and set the service up to listen to all IP addresses by running this command:

netsh http add iplisten ipaddress=0.0.0.0

And then followed this link https://stackoverflow.com/questions/20036984/how-do-i-restore-a-missing-iis-express-ssl-certificate

cd C:\Program Files (x86)\IIS Express IisExpress

AdminCmd.exe setupsslUrl -url:https://localhost:44387/ -UseSelfSigned

It works now, great job for creating the mazes, Microsoft.

brent 2020-02-12 08:35 发表评论

simulate OnIdle in MFC ActiveX control

brent — Thu, 15 Apr 2010 07:49:00 GMT

There are two ways to do this, one is simple, another is complicated but more powerful.

Method A:

::SetWindowsHookEx(WH_FOREGROUNDIDLE, YourIdleProc, AfxGetInstanceHandle(), GetCurrentThreadId());

Method B (my way):

1 static HHOOK s_hGetMsgHook = NULL;
2
3 LRESULT FAR PASCAL GetMsgProc(int nCode, WPARAM wParam, LPARAM lParam)
4 {
5     AFX_MANAGE_STATE(AfxGetStaticModuleState( ));
6
7     LPMSG lpMsg = (LPMSG) lParam;
8     if( (nCode >= 0) && PM_REMOVE == wParam)
9     {
10         //your code here. maybe to deal with hot-keys, accelerators ...
11         //see http://support.microsoft.com/kb/187988
12
13         //my code to simulate OnIdle
14         static BOOL bIdle = FALSE;
15         CWinApp* pApp = AfxGetApp();
16         if(!bIdle && pApp->IsIdleMessage(lpMsg))
17             bIdle = TRUE;
18
19         if(bIdle)
20         {
21             MSG msgPeek = {0};
22             if(!::PeekMessage(&msgPeek, NULL, NULL, NULL, PM_NOREMOVE))
23             {
24                 VERIFY(PostMessage(AfxGetMainWnd()->GetSafeHwnd(), WM_USER+0x12, 0x34, 0x56));
25             }
26         }
27
28         if(lpMsg->hwnd == AfxGetMainWnd()->GetSafeHwnd() &&
29             lpMsg->message == WM_USER+0x12 && lpMsg->wParam == 0x34 && lpMsg->lParam == 0x56)
30         {
31             lpMsg->message = WM_NULL;
32             lpMsg->lParam = 0L;
33             lpMsg->wParam = 0L;
34
35             pApp->OnIdle(0);
36             bIdle = FALSE;
37         }
38     }
39
40     return ::CallNextHookEx(s_hGetMsgHook, nCode, wParam, lParam);
41 }
42
43 int CYourOleControl::OnCreate(LPCREATESTRUCT lpCreateStruct)
44 {
45     //...
46
47     if(NULL == s_hGetMsgHook)
48         s_hGetMsgHook = ::SetWindowsHookEx(WH_GETMESSAGE, GetMsgProc, AfxGetInstanceHandle(), GetCurrentThreadId());
49 }
50
51 void CYourOleControl::OnDestroy()
52 {
53     //...
54
55     ::UnhookWindowsHookEx(s_hGetMsgHook);
56     s_hGetMsgHook = NULL;
57
58     COleControl::OnDestroy();
59 }

Method A is far more simple, but with Method B:

1) You can override CWinApp::IsIdleMessage to filter some special messages, such as a frequent timer which will not affect what you want to do in CWinApp::OnIdle. Because timer will affect message queue and if you don't filter it, OnIdle will be called every time after the timer is invoked.

2) Sometimes your action in OnIdle will affect message queue inevitably, thus you will get a infinite loop: OnIdle->the special messages in message queue->OnIdle->... But with Method B, with SPY++ you can find the special messages, and filter them in IsIdleMessage.

brent 2010-04-15 15:49 发表评论

C#clipboard, application webservice, MFC xml serialize

brent — Fri, 14 Mar 2008 02:45:00 GMT

http://www.codeproject.com/KB/clipboard/ClipSpyPlus.aspx
http://www.codeproject.com/KB/aspnet/ChatApplication.aspx
http://www.codeproject.com/KB/webservices/wstranslate.aspx
http://www.ucancode.net/faq/Visual-C-MFC-XML-Example.htm

brent 2008-03-14 10:45 发表评论

ASP.NET MVC

brent — Fri, 15 Feb 2008 03:14:00 GMT

http://weblogs.asp.net/scottgu/archive/2007/10/14/asp-net-mvc-framework.aspx

brent 2008-02-15 11:14 发表评论

Exposing Windows Forms Controls as ActiveX controls

brent — Wed, 17 Oct 2007 12:15:00 GMT

http://www.codeproject.com/cs/miscctrl/exposingdotnetcontrols.asp
http://www.c-sharpcorner.com/UploadFile/dsandor/ActiveXInNet11102005040748AM/ActiveXInNet.aspx

UserControl is not enough sometimes.
Sometimes you need to Expose a Form to ActiveX. Just don't forget to set it's TopLevel to false.
And it seems that a Form as MDI Container can't be exposed to ActiveX.Be aware of this if you want to expose your application to ActiveX.

Ok, you get through happily, and you should distribute you activex control now. Generate a cab file and put it on you web-server? No.
You have to do some ugly thing before it works. God will get very angry with this.
http://edndoc.esri.com/arcobjects/9.2/NET/9826f81b-278c-49cc-a912-ab8d86f5e91e.htm
http://blogs.msdn.com/robmen/archive/2004/04/28/122491.aspx
http://www.clarionmag.com/cmag/v7/v7n08dotnetinterop1.html

Finally, some one has contribute his work:
http://www.codeproject.com/KB/cs/CreateActiveXDotNet.aspx

brent 2007-10-17 20:15 发表评论

render whole html page

brent — Thu, 11 Oct 2007 15:57:00 GMT

Ask:
Hi,
I'm trying to render the contents of a HTML page hosted in a web
browser control so that I can save the result as an image.

There are a number of ways to do this. For example you can use any of
IHTMLElementRender, IViewObject or WM_PRINT. The problem with these
methods is that you only will receive the portion of the page's content
that is visible in the web browser. If the page's size is bigger than
the dimensions of the web browser these hidden or "scrollable" parts
will not get rendered in the above methods.

You could resize the browser to fit the entire page but that is not
feasible in a scenario when a user is using the browser. A second
approach is to load the page into a second hidden browser which, again,
is resized to fit the entire page. The problem with this approach is
that I can't load the document again since it's appearance could
change. I want to render exactly what's in the user's browser. AFAIK
there is know easy way to exactly clone a MSHTML document.

Does anyone (Igor?) have any clues how these "hidden" ares could be
rendered? Any help much appreciated.

Regards,
Christoffer

Answer:
    I took a couple of ideas from Code Project and pieced them together to
do just this. I render the client area into a small bitmap, blit it
into a final larger (page size) bitmap and scroll the control to get at
another area. This was simpler than trying to get it to render into
the correct area of the page size bitmap.

This was written for a browser control that was NOT seen by the user so
I didn't care where the final scroll position was.

1. From the IHTMLDocument interface call get_body to get the
IHTMLElement enterface.
2. Get the IHTMLElement2 interface (pBody2 in the code).
3. Call get_scrollHeight and get_scrollWidth, get_clientWidth,
get_clientHeight.
4. Get the IHTMLElementRender interface (pRenderer in the code).
5. Create a bitmap the size of the client area and select it into a
clientDC.
6. Create a bitmap the size of the scroll area and select it into a
pageDC.
7. Use some code like the following to scroll and render the page:

long x = scrollWidth;
long lastX = -1;
bool doneX = false;
while (!doneX)
{
    pBody2->put_scrollLeft(x);
    pBody2->get_scrollLeft(&x);
    if (-1 == lastX)
    lastX = x + clientWidth;
    long y = scrollHeight;
    long lastY = -1;
    bool doneY = false;
    while (!doneY)
    {
        pBody2->put_scrollTop(y);
        pBody2->get_scrollTop(&y);
        if (-1 == lastY)
        lastY = y + clientHeight;
        hr = pRenderer->DrawToDC(clientDC);
        BitBlt(pageDC,x,y,lastX-x,lastY-y,clientDC,2,2,SRCCOPY);
        doneY = (y==0);
        lastY = y;
        y -= clientHeight-4;
    }
    doneX = (0==x);
    lastX = x;
    x -= clientWidth-4;
}

The pageDC bitmap now holds the full image of the page and you can save
it or do anything else you want. You'll note that what I'm doing is
trying to scroll too far and letting IE scroll appropriately. Also
note that I clip a 2 pixel edge when blitting. This is from actual
testing - needed to not clip the border of the control.

Hope this helps,

David Stidolph
Austin, TX

Ask:
    Thanks for the solution, but it will unfortunately not work in my case
because the control is used by a user and can therefor not be scrolled
programmatically.

My focus now is on trying to clone the MSHTML document and then load
the clone in another hidden browser contol which I can resize to fit
the entire page and then do the rendering. The way I'm currently
cloning the document is saving the HTML to disk and then replacing all
references (images, .js, .css., ...) in the HTML document with local
ones which I have downloaded from the originating server (will do this
as a last resort), the cache or (in the cases where it's possible)
copied directly from the MSHTML document. When that is done I have a
local copy which a can browse to. Does anyone know of a better way to
clone a MSHTML document?

Answer:
    How about using a LockWindowUpdate call before the snapshot and
then unlocking it after? That way, the user never knows the WB
scrolled.

brent 2007-10-11 23:57 发表评论

调试ISAPI

brent — Tue, 19 Dec 2006 02:24:00 GMT

1�Q�设�|�用��h��?br />��IUSR_[COMPUTERNAME]和IWAM_[COMPUTERNAME]��d��到amdministrators�l?br />
��理工具-本地安全�{�略-本地�{�略-用户权利指派
以操作系�l�方式操作�?��d��     INTERACTIVE, IUSR_[COMPUTERNAME], IWAM_[COMPUTERNAME]
作�ؓ服务��d��        ��d��      INTERACTIVE, IUSR_[COMPUTERNAME], IWAM_[COMPUTERNAME]
调试�E�序            ��d��      INTERACTIVE, IUSR_[COMPUTERNAME], IWAM_[COMPUTERNAME]

重新启动计算机，以��用户权限讄��生效�?br />
2�Q�设�|�Web服务
服务
IIS Admin Service
Simple Mail Transport Protocol (SMTP)
FTP Publishing Service
World Wide Web Publishing Service
的启动方�?>手动�?br />
讄�� IIS Admin Service ��d��w�䆾设�ؓ本地�pȝ��帐号�Q��ƈ允许与桌面交�?br />
打开��理工具-Internet 服务��理器，讄��要允许调试的虚拟目录的属�?
执行�?>脚本和可执行�E�序
应用�E�序保护->�?IIS�q�程)

启动默认Web站点(必须��Web服务�Ȁ�z�，否则调试时虽然运行了inetinfo.exe�Q�但不会�q�行Web服务)

3�Q�配�|�VC project
Project-setting-Debug
Executable for debug session : C:\WINNT\system32\inetsrv\inetinfo.exe
Program argument : -e w3svc

4�Q�调�?br />执行命��o�?iisreset /stop

修改注册表信�?
REGEDIT4

[HKEY_CLASSES_ROOT\AppID\{61738644-F196-11D0-9953-00C04FD919C1}]
"LocalService"=-
"RunAs"=-

[HKEY_CLASSES_ROOT\AppID\{9F0BD3A0-EC01-11D0-A6A0-00A0C922E752}]
"LocalService"=-
"RunAs"=-

[HKEY_CLASSES_ROOT\AppID\{A9E69610-B80D-11D0-B9B9-00A0C922E750}]
"LocalService"=-
"RunAs"="Interactive User"

��以上注册表信息保存�?reg文�g双击卛_��?br />
可以开始在VC中调试了�Q�按F5..

5,恢复环境
按Shift + F5中断调试�?br />
恢复注册表信息：
REGEDIT4

[HKEY_CLASSES_ROOT\AppID\{61738644-F196-11D0-9953-00C04FD919C1}]
"LocalService"="IISADMIN"
"RunAs"=-

[HKEY_CLASSES_ROOT\AppID\{9F0BD3A0-EC01-11D0-A6A0-00A0C922E752}]
"LocalService"="IISADMIN"
"RunAs"=-

[HKEY_CLASSES_ROOT\AppID\{A9E69610-B80D-11D0-B9B9-00A0C922E750}]
"LocalService"="IISADMIN"
"RunAs"=-

执行命��o�?iisreset /start

可能需要用到的.reg .bat
http://www.shnenglu.com/Files/aqazero/iisIsapiDebug.zip

更详�l�信�?
http://xmlrad.com/DelosBin/Delos.dll/ServePage?URL=Manual/Appendix07/index.htm&WEB_ID=101001015

brent 2006-12-19 10:24 发表评论

xml island和javascript和xsl

brent — Tue, 08 Nov 2005 00:44:00 GMT

msdn关于xml element
w3schools中关于xml island

但对于不规则的xml文�g�Q�我��L��找不��C��用数据岛的方法。好像xml island把xml当成一个类似数据库的表�Q�直接把根目录下的元素当成recordset。所以对于xml文�g如下找不到解决的办法�Q?br />

xml version="1.0" encoding="gb2312" ?>

< rss version ="2.0" >
< channel >
        < title > 123 - 旅游杂志 title >
        < link > http://www.china-data.com.cn link >

        < item >
            < title > [旅游杂志]杭州西湖 title >
            < link > http://www.china-data.com.cn/downinfo/93.html link >

        item >
        < item >
            < title > [旅游杂志]桂林旅游 title >
            < link > http://www.china-data.com.cn/downinfo/92.html link >

        item >
       (item s)
channel >
rss >

��Z��获取�?0条item的数据，只好土炮刉��javascript如下

DOCTYPE HTML PUBLIC " -//W3C//DTD HTML 4.0 Transitional//EN " >
< HTML >
< HEAD >
< TITLE > Test SPAN style="COLOR: #000000">TITLE >

< script language = " JavaScript " >
     function load() {
         var xmlDoc = new ActiveXObject( " Microsoft.XMLDOM " );
        xmlDoc.load( " rss_Down_s10.xml " );
         var channelNode = xmlDoc.documentElement.firstChild;
         var objNodeList = channelNode.selectNodes( " //item " );
         for ( var count = 0 ;count < 10 && count <= objNodeList.length;count ++ ) {
             var itemnode = objNodeList.item(count);
             var titleText = "" ;
             var titleNode = itemnode.selectSingleNode( " title " );
             if (titleNode != null )
                titleText = titleNode.text;
             var linkText = "" ;
             var linkNode = itemnode.selectSingleNode( " link " );
             if (linkNode != null )
                linkText = linkNode.text;
            addRow( " test " ,count,titleText,linkText);
        }
    }
     function addRow(id,index,title,link) {
         var tbody = document.getElementById(id).getElementsByTagName( " TBODY " )[ 0 ];
         var row = document.createElement( " TR " )
         var td0 = document.createElement( " TD " )
        td0.appendChild (document.createTextNode(index))
         var td1 = document.createElement( " TD " )
        td1.appendChild(document.createTextNode(title))
         var td2 = document.createElement( " TD " )
        td2.appendChild (document.createTextNode(link))
        row.appendChild(td0);
        row.appendChild(td1);
        row.appendChild(td2);
        tbody.appendChild(row);
    }
SPAN style="COLOR: #000000">script >

SPAN style="COLOR: #000000">HEAD >
< BODY onload = load() >
< table id = " test " >
< tr >
< td > 1 SPAN style="COLOR: #000000">td >
< td > 2 SPAN style="COLOR: #000000">td >
< td > 3 SPAN style="COLOR: #000000">td >
SPAN style="COLOR: #000000">tr >
< table >
SPAN style="COLOR: #000000">BODY >
SPAN style="COLOR: #000000">HTML >

如果rss_Down_s10.xml可以被修改，�q�可以��用xsl来按格式昄��数据�?/p>

brent 2005-11-08 08:44 发表评论