5 replies to this topic

[CmdrVimes]

I have a small issue with ControlClick throwing up a LNK2019 error in Visual C++ 2010 Express. I'm a bit new to C++ (started learning 3 days ago to be precise) but I've done some C, Java, and of course AutoIT. I've already written this in AutoIT and it worked fine, I am just porting it to C++.

void tabSelect()
{
int selected = 0;
wchar_t tabText[5];
while (selected == 0)
{
AU3_ControlClick(L"", L"", L"[CLASS:SysTabControl32]", L"",1,175,30);
AU3_WinGetText(L"",L"RS232",tabText,5);
if (tabText == L"RS232")
selected = 1;
else
AU3_ControlClick(L"", L"", L"[CLASS:SysTabControl32]", L"",1,175,10);
}
}

To summarise: I'm selecting a tab labeled "RS232". The tab is designed (by the company who made it, badly) so that all of the tabs are merged into one large object so I have to click co-ordinates. Once clicked, I then have to check for the specific text "RS232" to be present on the whole screen.

Anyway, this throws up an error:

1>------ Build started: Project: CTA5, Configuration: Debug Win32 ------
1>main.obj : error LNK2019: unresolved external symbol _AU3_ControlClick@28 referenced in function "void __cdecl tabSelect(void)" (?tabSelect@@YAXXZ)
1>ocz.ocz.ukexportHardwareA001H05ExperimentsCPPCTA5DebugCTA5.exe : fatal error LNK1120: 1 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

I've come across the LNK2019 before (I hadn't included the AutoITX3.lib file), but this time around I'm stumped as to what the issue is.


Edit: I know I posted this in general help, but someone said it would be better in here so I've reposted. Sorry that it's a repost.


Edit 2: After some trial and error (i.e. running some other AU3_ code) I've determined it is a problem with ControlClick only... which, as far as I can tell, probably means there is an error in the dll or lib file.

Edited by CmdrVimes, 27 April 2012 - 03:43 PM.

[CmdrVimes]

Bit of a bump. Not been able to solve this over the weekend. Any suggestions from anyone?

[CmdrVimes]

I have tried using older versions of the autoitx3.lib and .h files to no avail.

[shanet]

Looks like a linker error. I hate those... I have not done any development with AutoItX, or dlls at all for that matter - are you loading the DLL (LoadLibrary()) ?

[CmdrVimes]

Looks like a linker error. I hate those... I have not done any development with AutoItX, or dlls at all for that matter - are you loading the DLL (LoadLibrary()) ?

I'm not loading the library directly, but I must assume that it is being loaded at some point: other functions like AU3_Run work, it's just AU3_ControlClick that does not.

Edit: it's being loaded by the Header File.

Edited by CmdrVimes, 30 April 2012 - 10:09 AM.

[Laymanball]

Use AutoItX3.dll in C++

1. Open Windows Forms Application
2. New Reference and browse AutoItX3.dll
3.Import AutoItX3Lib;
4.Write code to Button1
Example:
String^ au3 = AutoItX3;
au3->ControlClick(L"", L"", L"[CLASS:SysTabControl32]", L"",1,175,30);