[linrad] Re: problems getting inpout32.dll working with qt3forwindows

[Roger Rehr]

Hi, Bob, Leif, Chris and all,

It turns out that Chris's suggestion of changing the syntax of the 
LoadLibrary statement by putting an L in front of the "C:\..." did the 
trick and with that the program compiles with no errors.

I am now at the stage of getting a runtime fatal error when I insert 
the function call to oup32fp, but everything up to that step works 
fine, so I am getting closer ;)

Thanks Chris for the tip!!  I am quite certain I would NOT have 
discovered that anytime soon.  I had gone right by code using that 
syntax. ;)

I haven't found a  page that explains the "L" syntax, but I have now 
found many examples of it, and not just with LoadLibrary, but more 
generally when an external windows dll or process is being passed text 
of some form from within a C++ program.  Here are some other examples 
for the interested:

x.bstrVal = ::SysAllocString(L"C:\\Doc1.doc");

HRESULT hr = CLSIDFromProgID(L"Word.Application", &clsid);

AutoWrap(DISPATCH_PROPERTYPUT, NULL, pPropSubject, L"Value", 1, x);

wprintf(L"Failed calling ITask::SetWorkingDirectory: ");

lpcwszTaskName = L"Test Task";

So I BELIEVE but am not sure that the L before a string converts it 
from character to wide-character format.  Since my original problem was 
that I had 'char' type when I needed 'wchar_t' type, it would make 
sense that this would correct the problem.  But I didn't find this 
stated anywhere, so take this as a guess from a C++ non-programmer.

Have a great day, and

73,

W3SZ
Roger Rehr
http://www.nitehawk.com/w3sz



Roger Rehr
W3SZ
http://www.nitehawk.com/w3sz


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