Tutorial on DllCall() & DllStructs

[monoceres]

I don't think this is true, however (Page 4):

This is the exact same function that is being called when you write Sleep(100) in AutoIt, it's just that AutoIt acts a layer between you and the function.

As you probably understand it's a generalization

Thank you, master monoceres, for my DLL-fu grows stronger! There must be great Chi in sitting around eating cereal in your underwear!

Haha, don't forgot the nazi-hat, it's the most important part

Inside Utility.cpp, the util_sleep() function loops "::sleep(0);" until another counter detects timeout. I assume the double colon "::" makes a library reference to the C++ sleep() function. Is that the same thing as calling the Kernel32.dll version of sleep()?

Not exactly, the '::' detones a static method in a class. The method will then probably make a call to Sleep().

Also, while you're already learning so much, Sleep() is not a C++ function, it's a function that's a part of the winapi which is 3d party library from microsoft that enables you to interact with the windows os.

[JohnOne]

Ace.

Not seen this before and I'm a dll dope, so its excellent for me.

Thank you very kindly.

[rameshkumar]

Thanks Dude...its help me alot...

Once again thanks...

[timmalos]

Hey guys

Is it possible to get this tutoriel in .doc, .rtf, .odf or something like that ?

I want to translate this amazing tutorial for the french community (http://autoitscript.fr), but if i could have the structure it would be easier.

Thx a lot,

Cheers,

Tim

[a440hz]

Thanks very much, just what I needed!!

[taietel]

I've started AutoIt couple of months and I find it a great tool to work with, and this tutorial - along with the AutoIt documentation - are of great help for newbies like me. Thank you Monoceres!

[mdwerne]

Hey guys

Is it possible to get this tutoriel in .doc, .rtf, .odf or something like that ?

I want to translate this amazing tutorial for the french community (http://autoitscript.fr), but if i could have the structure it would be easier.

Thx a lot,

Cheers,

Tim

Not sure about Acrobat Reader, but in Acrobat Pro you can highlight -> copy -> and then -> paste the content into an MS Word document. Shouldn't take to long with just 10 pages.

-Mike

[SmOke_N]

There are a lot of free converters around.

( I didn't check the data against the pdf )

Dealing_with_Dll.doc

[timmalos]

Thx, i already tried your solution but i have OpenOffice and the file .doc converted isn't good. (Some letters are over others, etc...) However i started translation changing the layout.

I already said it, but Thx a lot for this tutorial.

[timmalos]

This is the French version of this tutorial, if someone need it.

http://autoitscript.fr/forum/download/file.php?id=1245

Edit : Fixing some errors.

Cheers,

Tim

Edited September 27, 2010 by timmalos

[TheCurrent]

How do i convert the dll structs here to autoit, its in vb6 and am finding it difficult

Private Declare Function DeviceCapabilities Lib "winspool.drv" Alias "DeviceCapabilitiesW" ( ByVal lpDeviceName As Long, ByVal lpPort As Long, ByVal iIndex As Long, ByVal lpOutput As Long, ByVal lpDevMode As Long) As Long

Private Sub lstPrinters_Click()
    Dim P As Printer
    Dim lngPapers As Long
    Dim strPaperNames As String
    Dim lngPaper As Long
    Dim strPaperName As String
    Dim lngActualLength As Long

    Set P = Printers(lstPrinters.ListIndex)
    lngPapers = DeviceCapabilities(StrPtr(P.DeviceName),   StrPtr(P.Port), DC_PAPERNAMES, 0, 0)
    strPaperNames = String$(lngPapers * 64, 0)
    lngPapers = DeviceCapabilities(StrPtr(P.DeviceName), StrPtr(P.Port), DC_PAPERNAMES, StrPtr(strPaperNames),  0)
    lstPapers.Clear
    For lngPaper = 0 To lngPapers - 1
        strPaperName = Mid$(strPaperNames, 64 * lngPaper + 1, 64)
        lngActualLength = InStr(strPaperName, vbNullChar) - 1
        If lngActualLength > 1 Then strPaperName = Left$(strPaperName, lngActualLength)
        lstPapers.AddItem strPaperName
    Next
End Sub

[Euler G.]

This tutorial is mostly aimed for people who have never used DllCall() before or have very limited knowledge about it. In the future I will update it with more advanced topics so more advanced users can make use of it too.

Nice tutorial! And description above is very me. This will help me a lot with my Thanks!

[1RV34]

Ok I'm kinda stuck & hope somebody can help me with this here.

I'm following this tutorial but I can't get stuff to work.

I have a dll & it has like COM Properties or idk like "_class::propperty" but how do I call them?

using DLLCall (like I tried) or do I need the ObjGet function? Or both of them combined?

I haven't used dll's & com stuff before but now I need to and now this tutorial did help me understand DLLCall better.

Anybody can push me in the right direction? Do I need DLLCall or ObjGet or both? And how do I use those things from the dll (those that look like "_class::property") in AutoIt?

Edit: I also found a function called "DllGetClassObject" in the dll, can I use that to create an object and then use that to call the properties? If so how?

When I tried it myself it crashed with exit code -1073741819.

Edit: moved to a seperate topic:

Edited February 13, 2012 by 1RV34

[TheAutomator]

monoceres,

Thanks for this! needed it 

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TheAutomator.

[Prime03]

monoceres,

Thanks for this! needed it 

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TheAutomator.

 

I was reading your thread earlier but I'm a big dll noob myself, and the minute I saw this thread I knew you had dug it up lol!

Anyways, just wanted to say thanks as well! Some juicy stuff in here

Edited February 20, 2014 by Prime03

[Starstar]

Please post a little more advanced topic..............thanks for this i shall really like you if you teach us a bit more........ keep it up

[Danyfirex]

Please post a little more advanced topic..............thanks for this i shall really like you if you teach us a bit more........ keep it up

 

Look into WinAPI/Ex UDF are Great Examples.

Saludos

[TheDcoder]

Wow, Short & Simple, I learn what DllStruct are in 10 mins , TD

 

P.S I tried to learn the same thing in 2014 but It was freaking hard then, lol

[kcvinu]

@monoceres Thanks for this tutorial. Really helpful for those who don't know a lot about dlls. 

[Muhammad_Awais_Sharif]

thank you very much

 

great tutorial