Hi, I''ve been working on a simple platformer for about 4 weeks using visual c++, and have recently transfered the project to another machine. However, despite having not changed any of the code it is throwing up the two following compile errors: error C2065: ''DirectInput8Create'' : undeclared identifier error C2065: ''IID_IDirectInput8'' : undeclared identifier However, I have ensured that on the new machine I have included the DX include and lib paths in the directories tab of the tools...options dialog box. The Link Project Options for the project are as follows: dxguid.lib dinput8.lib d3dx9dt.lib d3d9.lib d3dxof.lib comctl32.lib winmm.lib dxguid.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib /nologo /stack:0x200000,0x200000 /subsystem:windows /incremental:yes /pdb:".\Debug/billboard.pdb" /debug /machine:I386 /out:".\Debug/billboard.exe" /libpath:"..\..\framework\lib" /ignore:4089 /ignore:4078 I have also noticed that on the new machine, that the DX sample files from the SDK will not compile, when of course they should. The error is similar, to do with the typedefs. for instance the billboard sample gives: error C2065: ''ULongToHandle'' : undeclared identifier and also error C2065: ''ULongToPtr'' : undeclared identifier which leads me to believe that these problems are being caused by something more fundamental. I have tried in the platformer project changing the #include command to include a different file than dinput.h, for instance dinpu.h, but this gives an error that the file could not be found, implying that with the correct filename it is location the header file for the DirectInput8Create function. I really don''t understand what is causing this problem, can anyone tell me why the function is not being recognised?

Does the new machine have at least the DirectX 8 SDK installed?


Qui fut tout, et qui ne fut rien
Invader''s Realm

yeah course otherwise i wouldnt have been able to add the DX include and lib paths, and also dinput.h would not have been found. I''m have a feeling the problem is to do with more fundamental header files whose absence are causing these errors as a side effect, as it seems less than a coincidence that it the compiler is throwing up ''undeclared identifier'' at the standard windows typedefs like ULongToPtr.

sorry just to make this clear I am using on this machine and the previous one the DX SDK 9.0a, which worked fine before.

thanks so much that solved it! thats stopped all work for ages thanks so much.