cannot convert parameter 1 from ‘TW_STR32’ to ‘LPWSTR’

[twainuser123]

Hi,

I am new to TWAIN programming. I was reading the specification and got confused when trying to do this:

TW_IDENTITY appIdentity;

appIdentity.SupportedGroups = DF_APP2;

lstrcpy(appIdentity.Manufacturer, "My Company");

I got the error message

error C2664: 'lstrcpyW' : cannot convert parameter 1 from 'TW_STR32' to 'LPWSTR'

on my Visual C++ Express on Windows Vista.

The code works in Twacker’s source code.
Please help. Thanks in advance!

[Thierry]

TW_STR32 is Multi Byte and you’re trying to use a Wide Char pointer to acces it, you just can’t (without blowing up your software).
You need to convert it using MultiByteToWideChar … or to compile in multibyte instead of unicode wide char.

[twainuser123]

Thanks for the reply!

It works with your answer.
I found more information here as well: http://msdn.microsoft.com/en-us/library/z207t55f%28VS.80%29.aspx

[Author]

Posts