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In 0.9 (just updated first post), I added the ability to change the titlebar text color. Changing the titlebar text color is generally not needed. If you change the titlebar background color, the OS will generally (automatically) change the titlebar text color to something that is legible. However, if the option is available to change the titlebar text color in case someone wants to have fun with it. There may also be certain circumstances with Blur Behind that could benefit from changing the text color. I finally updated the documentation file (DwmColorBlurMica.txt) with some OS requirements for the different API calls and some general info.

It is because the code is using int to call the callback while, in your case, it should be ptr. DllCallAddress("none", $lParam, "ptr", $wParam, "int", 1) After some readings, it became quite clear what is the issue when an APC is executed inside AutoIt. We have to remember that AutoIt (I tend to forget about it) is interpreted. Which means that it is the AutoIt3.exe engine that executes our script lines. So when an APC is launched, Windows expect that it will be using its own stack. But since the callback address is referring to one managed by the interpreter which has a different stack, corruption is doomed to happen. By using ASM code, the interpreter is not involved in any way in the callback. We then communicate thru a message, which is perfectly handled by AutoIt. So bottom line, it is very safe to use the ASM code and I do not see anyway it could break.

Version 0.8 has been added to the first post. There were two goals for this release. The first was to complete the Blur Behind feature and the second was more performance improvements to the event hook. The Blur Behind had an issue where the titlebar would lose the blur after losing and regaining focus. I fixed that and it's working 100% now with the exception of modern File Explorer. Modern File Explorer required some special handling in the event hook. Blur Behind is complete now and fabulous. The event hook is basically instantaneous now. I created a testing script that runs through the functions used in my event hook 100,000 times to get a timediff. The results helped me tidy up, modify and organize the functions in my event hook to improve performance a bit. I was able to improve the initial startup performance as well. I am really thrilled with how much DwmColorBlurMica has evolved and improved. I have learned a lot from this.

I've had this thing I wrote up laying around for a while now and decided I'd comment the heck out of it and post it here for others to enjoy as well. It's a multi-client TCP server "base" that has all the boilerplate code done, the only thing that one needs to do is just whip their protocol code in to it and it's ready to go. I've included a little few-line example bit in it (in the #region stuff) for a simple echo server. A quick way to see the example work is to just start this up and use a telnet client to connect to it on the port that you chose to have it bind (default in the one I'm posting is port 8080), typing a sentence, and pressing enter. This server makes use of setting the TCPTimeout option to 0, making it quite efficient when a high number of clients are connected and making it faster at accepting new connections. It does not use a fixed-size array for storing client connections, but instead dynamically re-sizes the client array when clients disconnect or connect (Setting $MaxClients to 0 makes the number of simultaneous clients only limited by RAM or AutoIt internal limits, whatever is reached first. I've tested this at 10,000 concurrent connections successfully, albeit with some slightly elevated CPU usage ). The server also implements a simple per-client packet buffer (as shown in the little echo example) which can come in handy for things such as large packets from file transferring and such. Instead of only relying on checking @error after a TCPRecv call to determine if a client disconnected (which can lie in certain cases), this uses a checking function which implements both that @error check and an idle timeout check that disconnects the client if they have not sent anything in a certain period of time. This is not really aimed at people who are unfamiliar with sockets work in AutoIt, as this provides no real application layer protocol, you must make that yourself. The only thing this does is do all the hard and/or tedious work of managing what happens when clients try connecting, how packet data should be buffered, and when a connection should be considered "dead". If you use this in a project, a simple little comment saying you used it would be nice #cs ---------------------------------------------------------------------------- AutoIt Version: 3.3.8.1 (Or greater) Author: Ken Piper Script Function: Template multi-client server base code. Use as a base for making an efficient server program. This base will just accept connections and echo back what it receives, and kill the connection if it is dead or inactive for x seconds. It will not do any other work, that must be added seperately! #ce ---------------------------------------------------------------------------- TCPStartup() Opt("TCPTimeout", 0) #region ;Safe-to-edit things are below Global $BindIP = "0.0.0.0" ;Listen on all addresses Global $BindPort = 8080 ;Listen on port 8080 Global $Timeout = 15000 ;Max idle time is 15 seconds before calling a connection "dead" Global $PacketSize = 2048 ;Max packet size per-check is 2KB Global $MaxClients = 50 ;Max simultaneous clients is 50 #endregion ;Stuff you shouldn't touch is below Global $Listen Global $Clients[1][4] ;[Index][Socket, IP, Timestamp, Buffer] Global $Ws2_32 = DllOpen("Ws2_32.dll") ;Open Ws2_32.dll, it might get used a lot Global $NTDLL = DllOpen("ntdll.dll") ;Open ntdll.dll, it WILL get used a lot Global $CleanupTimer = TimerInit() ;This is used to time when things should be cleaned up OnAutoItExitRegister("Close") ;Register this function to be called if the server needs to exit $Clients[0][0] = 0 $Listen = TCPListen($BindIP, $BindPort, $MaxClients) ;Start listening on the given IP/port If @error Then Exit 1 ;Exit with return code 1 if something was already bound to that IP and port While 1 USleep(5000, $NTDLL) ;This is needed because TCPTimeout is disabled. Without this it will run one core at ~100%. ;The USleep function takes MICROseconds, not milliseconds, so 1000 = 1ms delay. ;When working with this granularity, you have to take in to account the time it takes to complete USleep(). ;1000us (1ms) is about as fast as this should be set. If you need more performance, set this from 5000 to 1000, ;but doing so will make it consume a bit more CPU time to get that extra bit of performance. Check() ;Check recv buffers and do things If TimerDiff($CleanupTimer) > 1000 Then ;If it has been more than 1000ms since Cleanup() was last called, call it now $CleanupTimer = TimerInit() ;Reset $CleanupTimer, so it is ready to be called again Cleanup() ;Clean up the dead connections EndIf Local $iSock = TCPAccept($Listen) ;See if anything wants to connect If $iSock = -1 Then ContinueLoop ;If nothing wants to connect, restart at the top of the loop Local $iSize = UBound($Clients, 1) ;Something wants to connect, so get the number of people currently connected here If $iSize - 1 > $MaxClients And $MaxClients > 0 Then ;If $MaxClients is greater than 0 (meaning if there is a max connection limit) then check if that has been reached TCPCloseSocket($iSock) ;It has been reached, close the new connection and continue back at the top of the loop ContinueLoop EndIf ReDim $Clients[$iSize + 1][4] ;There is room for a new connection, allocate space for it here $Clients[0][0] = $iSize ;Update the number of connected clients $Clients[$iSize][0] = $iSock ;Set the socket ID of the connection $Clients[$iSize][1] = SocketToIP($iSock, $Ws2_32) ;Set the IP Address the connection is from $Clients[$iSize][2] = TimerInit() ;Set the timestamp for the last known activity timer $Clients[$iSize][3] = "" ;Blank the recv buffer WEnd Func Check() ;Function for processing If $Clients[0][0] < 1 Then Return ;If there are no clients connected, stop the function right now For $i = 1 To $Clients[0][0] ;Loop through all connected clients $sRecv = TCPRecv($Clients[$i][0], $PacketSize) ;Read $PacketSize bytes from the current client's buffer If $sRecv <> "" Then $Clients[$i][3] &= $sRecv ;If there was more data sent from the client, add it to the buffer If $Clients[$i][3] = "" Then ContinueLoop ;If the buffer is empty, stop right here and check more clients $Clients[$i][2] = TimerInit() ;If it got this far, there is data to be parsed, so update the activity timer #region ;Example packet processing stuff here. This is handling for a simple "echo" server with per-packet handling $sRecv = StringLeft($Clients[$i][3], StringInStr($Clients[$i][3], @CRLF, 0, -1)) ;Pull all data to the left of the last @CRLF in the buffer ;This does NOT pull the first complete packet, this pulls ALL complete packets, leaving only potentially incomplete packets in the buffer If $sRecv = "" Then ContinueLoop ;Check if there were any complete "packets" $Clients[$i][3] = StringTrimLeft($Clients[$i][3], StringLen($sRecv) + 1) ;remove what was just read from the client's buffer $sPacket = StringSplit($sRecv, @CRLF, 1) ;Split all complete packets up in to an array, so it is easy to work with them For $j = 1 To $sPacket[0] ;Loop through each complete packet; This is where any packet processing should be done TCPSend($Clients[$i][0], "Echoing line: " & $sPacket[$j] & @CRLF) ;Echo back the packet the client sent Next #endregion ;Example Next EndFunc Func Cleanup() ;Clean up any disconnected clients to regain resources If $Clients[0][0] < 1 Then Return ;If no clients are connected then return Local $iNewSize = 0 For $i = 1 To $Clients[0][0] ;Loop through all connected clients $Clients[$i][3] &= TCPRecv($Clients[$i][0], $PacketSize) ;Dump any data not-yet-seen in to their recv buffer If @error > 0 Or TimerDiff($Clients[$i][2]) > $Timeout Then ;Check to see if the connection has been inactive for a while or if there was an error TCPCloseSocket($Clients[$i][0]) ;If yes, close the connection $Clients[$i][0] = -1 ;Set the socket ID to an invalid socket Else $iNewSize += 1 EndIf Next If $iNewSize < $Clients[0][0] Then ;If any dead connections were found, drop them from the client array and resize the array Local $iSize = UBound($Clients, 2) - 1 Local $aTemp[$iNewSize + 1][$iSize + 1] Local $iCount = 1 For $i = 1 To $Clients[0][0] If $Clients[$i][0] = -1 Then ContinueLoop For $j = 0 To $iSize $aTemp[$iCount][$j] = $Clients[$i][$j] Next $iCount += 1 Next $aTemp[0][0] = $iNewSize $Clients = $aTemp EndIf EndFunc Func Close() DllClose($Ws2_32) ;Close the open handle to Ws2_32.dll DllClose($NTDLL) ;Close the open handle to ntdll.dll For $i = 1 To $Clients[0][0] ;Loop through the connected clients TCPCloseSocket($Clients[$i][0]) ;Force the client's connection closed Next TCPShutdown() ;Shut down networking stuff EndFunc Func SocketToIP($iSock, $hDLL = "Ws2_32.dll") ;A rewrite of that _SocketToIP function that has been floating around for ages Local $structName = DllStructCreate("short;ushort;uint;char[8]") Local $sRet = DllCall($hDLL, "int", "getpeername", "int", $iSock, "ptr", DllStructGetPtr($structName), "int*", DllStructGetSize($structName)) If Not @error Then $sRet = DllCall($hDLL, "str", "inet_ntoa", "int", DllStructGetData($structName, 3)) If Not @error Then Return $sRet[0] EndIf Return "0.0.0.0" ;Something went wrong, return an invalid IP EndFunc Func USleep($iUsec, $hDLL = "ntdll.dll") ;A rewrite of the _HighPrecisionSleep function made by monoceres (Thanks!) Local $hStruct = DllStructCreate("int64") DllStructSetData($hStruct, 1, -1 * ($iUsec * 10)) DllCall($hDLL, "dword", "ZwDelayExecution", "int", 0, "ptr", DllStructGetPtr($hStruct)) EndFunc Comments, questions, and criticisms are appreciated! Changelog: Cleared up formatting a bit in the [autoit] tags Fixed a bug in how it cleaned up the connection, and fixed a spelling error in the post Fixed a very rare corner-case that could cause a crash when getting many connections and disconnections in a short amount of time Changed a bit of code to fix issues with reading multiple buffered packets Fixed some spelling in the post and clean the code a bit; I try to keep this code up-to-date with the source file on my computer Fixed to add a massive performance increase when handling large numbers of connected clients and the client array needs to be trimmed. (I've seen up to a 500x speed increase on my computer!) Quick fix, apparently I forgot to set the max pending connections in TCPListen, leading for some pretty slow connection-accepting! Sorry about that. Fixed the problem of the latest AutoIt version causing "If @error Then" type statements to fail for TCPRecv, as TCPRecv now sets @error to -1 if the socket is alive but idle. This fixes the problem of clients getting instantly disconnected, sorry about not updating the code here with this sooner.