SendInput() function 'INPUT' : undeclared identifier

[Abhishek_Narula]

I want to use SendInput function to simulate mouse event ..
but if i declare object of INPUT structure , compiler prompts me with the error
'INPUT' : undeclared identifier

I have also included 'WinUser.h' and 'Windows.h' i have also included User32.lib in the project settings -link tab.

I m stuck ! can some Guru help me out !
Thanks in advance ... needless to say gurus are always rated .

Abhishek Narula
(Member Technical Staff)
Syndew.Com Pvt. Ltd.

[Igor Soukhov]

put this line into stdafx.h before any includes

#define _WIN32_WINNT 0x0500


Please - rate answer if it helped you
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Best regards,

-----------
Igor Soukhov (Brainbench/Tekmetrics ID:50759)
igor@soukhov.com | ICQ:57404554 | http://soukhov.com

Member of Russian Software Developer Network http://rsdn.ru

[Abhishek_Narula]

Thanks a zillion boss !
i would also appreciate if you can throw little more light on this
'#define _WIN32_WINNT 0x0500' thing. Although the thing has started moving ..but what is the reason behind that. why is this include required , how do find it out , where all do we require these kind of includes !

Thanks a lot!
Regards,

Abhishek Narula
(Member Technical Staff)
Syndew.Com Pvt. Ltd.

[ulysses109]

Igor, thanks so much. I was struggling with this problem for a very long time, and had absolutely no idea what was wrong until I saw your post. Now everything compiles perfectly

Ulysses

[caezar]

This is a non-issue with new compilers like VS2015 where SendInput() readily compiles but for VC6, the #include didn't work. I had to add the flag /D _WIN32_WINNT=0x401 to project settings at C/C++ tab > Catagory General (combo box) and down on that page to "Project Options". I added this /D _WIN32_WINNT=0x401 right after UNIICODE flag.

Note /d is just telling the compiler it is followed by the flag and _WIN32_WINNT=0x401 is the actual flag.

[VictorN]

This is a non-issue with new compilers like VS2015 where SendInput() readily compiles but for VC6, the #include didn't work. I had to add the flag /D _WIN32_WINNT=0x401 to project settings at C/C++ tab > Catagory General (combo box) and down on that page to "Project Options". I added this /D _WIN32_WINNT=0x401 right after UNIICODE flag.

Note /d is just telling the compiler it is followed by the flag and _WIN32_WINNT=0x401 is the actual flag.

And what and whom did you want to explain with your post in this more than 15 years old thread?