Cannot open include file "d3dx9.h"

Question

Edit: Of course, immediately after working on it for an hour then posting here, I found the stupid mistake...

I'm getting compiler errors when trying to #include <d3dx9.h> in a project. I'm receiving "fatal error C1083: Cannot open include file: 'd3dx9.h': No such file or directory".

• I do have the DirectX SDK installed (I also just tried reinstalling it to no avail).
• In the Project Properties:
  • VC++ Directories are set to "$(DXSDK_DIR)Include;$(IncludePath)" and "$(DXSDK_DIR)Lib\x86;$(LibraryPath)" for Include and Library directories respectively for all configurations—and the environment variable %DXSDK_DIR% points to C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\ as expected.
  • C/C++ > General settings has $(DXSDK_DIR)include listed in the Additional Include Directories
  • Linker > Input > Additional Dependencies has d3dx9d.lib included for Debug and d3dx9.lib included for Release configuration.
• I am able to successfully compile and run tutorial projects from the DirectX Sample Browser.
• Visual Studio's Intellisense/autocomplete will find d3dx9.h and suggest type and function names that are within the file (and not included through anything else I'm #includeing) so it seems that Intellisense can find it.

Any suggestions on what I'm forgetting or what else to try?

Thanks

Dichotomize

Add an answer with what you did, and select it. Deleting negates the effort Liviu put into helping you. – Slung

Ok. I wasn't sure if answering my own question was bad form. Will do. – Dichotomize

Answer 1

I didn't realize that one of the other projects in the solution was #includeing a file that was #includeing a file that was #includeing d3dx9.h and I hadn't added those paths to that project.

/facepalm

Dichotomize

Answer 2

you forgot one thing:

1. Go to VC++ Directories -> Library Directories
2. add $(DXSDK_DIR)LIB\x86
3. apply.

Done. Hope this helps

Renzo

I thought he mentioned he included the library directory already. – Stapleton

Answer 3

You should make sure you have ALL paths sorounded by quotes ("). Instead of $(DXSDK_DIR)include you should have "$(DXSDK_DIR)include"

Cooking

My understanding is that VS2010 doesn't require quotes around paths; but, either way, adding quotes didn't fix it. – Dichotomize

Answer 4

Find the file on your computer, and add it's folder to the properties of your project.

Assuming you have visual studio: Properties/C/C++/General/Additional Include Libraries.

Goodill

That actually solved the problem for me, but I find it really obscure. Why is it not sufficient to have the directory listed in "VC++ Directories -> Include Directories"? Can you elaborate on the differences between that and the setting you mentioned? – Rebeckarebeka

Answer 5

I tried all of these suggestions and none worked.

Turns out the $(DXSDK_DIR) variable doesn't work if you install DirectX while Visual Studio is still running. The solution for me was to restart Visual Studio (+ adding the paths in the solutions listed above, of course).

Bodycheck