Sign in to follow this  
Followers 0
stormbreaker

Working with DLLs

4 posts in this topic

:bye: Hello everybody, I have a bit weird question. What I want to do is to call a DLL (from AutoIt of course) and :idiot: I want the script to continue its execution (while the DLL is doing its job). Any ideas on how this can be done?

Also, could anyone please give me a basic idea of DLL Callbacks etc. (I mean, what can we do with these etc.)

Thanks a lot...

Regards,

MKISH


----------------------------------------

:bye: Hey there, was I helpful?

----------------------------------------

My Current OS: Win8 PRO (64-bit); Current AutoIt Version: v3.3.8.1

Share this post


Link to post
Share on other sites



#2 ·  Posted (edited)

:bye: Hello everybody, I have a bit weird question. What I want to do is to call a DLL (from AutoIt of course) and :idiot: I want the script to continue its execution (while the DLL is doing its job). Any ideas on how this can be done?

It cannot.

Also, could anyone please give me a basic idea of DLL Callbacks etc. (I mean, what can we do with these etc.)

Thanks a lot...

Regards,

MKISH

Edited by JohnOne

AutoIt Absolute Beginners    Require a serial    Pause Script    Video Tutorials by Morthawt   ipify 

Monkey's are, like, natures humans.

Share this post


Link to post
Share on other sites

Well I asked this because I saw somewhere on the internet that you could do this using PostMessage() function. But although this was done using multiple threads, I still believe there is scope of doing something like this in AutoIt.


----------------------------------------

:bye: Hey there, was I helpful?

----------------------------------------

My Current OS: Win8 PRO (64-bit); Current AutoIt Version: v3.3.8.1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Similar Content

    • luckyluke
      By luckyluke
      Hello,
      Im trying to read the output from CMD using Dllcall, here is my code:
      #include <WinAPI.au3> #include <array.au3> Global Const $STD_OUTPUT_HANDLE = -11 Global Const $_CONSOLE_SCREEN_BUFFER_INFO = _ "struct;int dwSizeX;" & _ "short dwSizeY;" & _ "short dwCursorPositionX;" & _ "short dwCursorPositionY;" & _ "short wAttributes;" & _ "short Left;" & _ "short Top;" & _ "short Right;" & _ "short Bottom;" & _ "short dwMaximumWindowSizeX;" & _ "short dwMaximumWindowSizeY;endstruct" $pCmd = Run( "cmd.exe" ) Sleep(1000) $hCmd = WinGetHandle("") ConsoleWrite('handle:' & $hCmd & @CRLF) $aRet = DllCall("kernel32.dll", "int", "AttachConsole", "dword", $pCmd) ;_ArrayDisplay($aRet) If $aRet[0] <> 0 Then $vHandle_data='' $vHandle='' $vHandle_data = DllStructCreate($_CONSOLE_SCREEN_BUFFER_INFO) ; Screen Buffer structure $aRet1 = DllCall("kernel32.dll", "hwnd", "GetStdHandle", "dword", $STD_OUTPUT_HANDLE) if not @error Then $vHandle = $aRet1[0] $aRet = DllCall("kernel32.dll", "int", "GetConsoleScreenBufferInfo", "hwnd", $vHandle, _ "ptr", $vHandle_data) MsgBox(0, '1',DllStructGetData($vHandle_data, 'dwSizeX') & _WinAPI_GetLastErrorMessage()) EndIf It did not work, i got the message 'The handle is invalid'. Please help?
      Thank you in advance!
    • MazeM
      By MazeM
      Hi
      here's another UDF for the serial port. It is very similar to CommAPI using kernel32.dll, but all code is packed into a single file without any dependencies, not even using WinAPI.au3. It differs from existing UDF that it doesn't allow a timeout when reading, instead it always returns immediately, either with the requested amount ob bytes read or with a failure status. And of course there is a function provided to query the amount of available bytes in the receive buffer. The reason behind this design decision: You can do 1000 other things in the main loop while checking from time to time if enough data bytes arrived. There's no point to block the program waiting for the serial port.
      It is currently a work-in-progress, as I didn't test all functions yet. The code was developed and tested on Windows 7 64 bit.  The ComUDF-Tests.au3 shows some tests and basic usage of the UDF. Maybe there's no reason to use this UDF, given the existence of the others UDFs, but I did it to get to know DllCall better - I use structs no only to pass but also to get data back (I don't use the array returned by DllCall to read that data, unless required). You're welcome to test it on older and newer Windows versions.
      Here's a list of the implemented functions:
      ; _ComListPorts ; _ComOpenPort ; _ComSetTimeouts ; _ComClosePort ; ; _ComSetBreak ; _ComClearBreak ; _ComGetInputcount ; _ComGetOutputcount ; _ComClearOutputBuffer ; _ComClearInputBuffer ; ; _ComSendByte ; _ComReadByte ; _ComSendBinary ; _ComReadBinary ; ; _ComSendChar ; _ComReadChar ; _ComSendCharArray ; _ComReadCharArray ; _ComSendString ; _ComReadString ; ; __ComClearCommError ; __PurgeComm Maze
       
      ComUDF.au3
      ComUDF-Tests.au3
    • astrionn
      By astrionn
      So I had this Idea of creating a tooltip which shows me my ping.
      That itself was made quickly and I thought too add a couple features.
      I want the tooltip background to be a different color depending on the ping. (good ping is green, medium ping is yellow,...)
      So how do I color in a tooltip? google brought me to this: 
       
      where in the comments I found this:
      $s = "LOW" ToolTip($s, 0, 0, "Battery Information");, $icon) $H_TOOLTIP1 = WinGetHandle($s) DllCall("UxTheme.dll", "int", "SetWindowTheme", "hwnd", $H_TOOLTIP1, "wstr", "", "wstr", "") DllCall("user32.dll", "int", "SendMessage", "hwnd", $H_TOOLTIP1, "int", 1043, "int", 2552550, "int", 0) Sleep(1000) Which I then used in my code with different color codes... Trial and Error brought me these that I wanted to use:
       
      The Problem is if I loop through my code it only sets the color for the 1st loop and then sticks to it.
      The real problem is tho that I don't exactly understand the dllcalls... And I guess that's why it isn't working
      So if someone would be so awesome to explain to me how they work, or at least can give me a list of these parameters then I would really appreciate that and learn something new
      Obviously a solution to my problem is awesome aswell ^^
      I run this under Windows 8.1
      There is my code in a paste.
      https://pastebin.com/q525f7mS
    • Leo1906
      By Leo1906
      Hello Guys,
      once aggain I need your help on a DLL Topic
      I need to pass arguments to my function via a structure, because I am limited to only one argument that can be passed.
      But I don't think that thats so important.
      So here's my approach:
      C++ Code (just the important part):
      extern "C" { struct ParamStruct { const char* test1; const char* test2; const char* test3; int size; }; int testFunc(struct ParamStruct * params) { return params->size; } } And thats how I try to call the function using Autoit:
      Local $struct = "struct;char shapefile[128];char output[128];char filename[128];int size;endstruct" Local $tTest = DllStructCreate($struct) DllStructSetData($tTest, "test1", "Bla") DllStructSetData($tTest, "test2", "BlaBla") DllStructSetData($tTest, "test3", "BlaBlaBla") DllStructSetData($tTest, "size", 40) $dll = DLLOpen("myDLL.dll") $ret = DllCall($dll, "int:cdecl", "testFunc", "STRUCT*", DllStructGetPtr($tTest)) MsgBox(0, 0, $ret[0]) DllClose($dll) Just for testing I want the function to just return the integer value in the struct.
      But this aint working. I tested many things, but still I'm not able to get it running. I even don't know if the mistakes are in the C++ code or the Autoit code or both .. I'm not that skilled at C++ and also not that skilled at Autoit DLLCalls :-/
      I would really appreciate some help!
      Kind regards,
      leo
    • MagicSpark
      By MagicSpark
      Hello,
      can someone help me out with some DllCall in AU3.
      The relevant source of function and struct definition are as follows (in slightly modified form):
      typedef struct {     char    *host;     char    *key;     char    *value; } test_sender_value_t; /******************************************************************************  * Parameters: address   - [IN] server address                                *  *             port      - [IN] server port                                   *  *             source    - [IN] source IP, optional - can be NULL             *  *             values    - [IN] array of values to send                       *  *             count     - [IN] number of items in values array               *  *             result    - [OUT] the server response/error message, optional  *  *                                                                            *  * Return value: 0 - the values were sent successfully, result contains       *  *                         server response                                    *  *               -1 - an error occurred, result contains error message        *  *                                                                            *  ******************************************************************************/ TEST_API int test_sender_send_values(const char *address, unsigned short port, const char *source, const test_sender_value_t *values, int count, char **result);
      In AutoIt I use the following code to build the struct and call the dll:
      Global $struct = DllStructCreate("ptr ptrtostring1;ptr ptrtostring2;ptr ptrtostring3;") Global $string1 = DllStructCreate("char host[255];") DllStructSetData($string1, "host", "Test_Client") DllStructSetData($struct, "ptrtostring1", DllStructGetPtr($string1)) Global $string2 = DllStructCreate("char key[255];") DllStructSetData($string2, "key", "clientver") DllStructSetData($struct, "ptrtostring2", DllStructGetPtr($string2)) Global $string3 = DllStructCreate("char value[255];") DllStructSetData($string3, "value", "123456") DllStructSetData($struct, "ptrtostring3", DllStructGetPtr($string3)) Global $aCall = DllCall("C:\temp\test.dll", "int", "test_sender_send_values", _     "str", "192.168.1.2", _     "int", 80, _     "str", "192.168.1.3", _     "ptr", DllStructGetPtr($struct), _     "int", 1) If @error Then     ConsoleWrite("Error: " & @error & @CRLF)     exit 1 Else     ConsoleWrite("Success: " & $aCall[0] & @CRLF) EndIf
      If I ran the AU3-Script with SciTE I get the following output:
      !>12:00:00 AutoIt3.exe ended.rc:-1073741783 Can someone point me into the right direction. I must admit, that I'm very new to handling DLL-Calls and structs.
      But I've read down the forum threads and the AutoIt help.
      Thanks in advance.