Can't include <d3dkmdt.h> in a UMDF project (but need D3DKMDT_VIDEO_SIGNAL_STANDARD typedef)

NTDEV
1

Microsoft documentation for the D3DKMDT_VIDEO_SIGNAL_STANDARD type refers to d3dkmdt.h, but including that header directly (at least, in a UMDF project) yields a compiler error message:

1>c:\program files (x86)\windows kits\10\include\10.0.17763.0\shared\d3dkmdt.h(20): fatal error C1189: #error:  This header should not be included directly!

Anyone know which header file(s) to include in order to get the definition for this type?

2

Go look at the source file. It can’t be included directly, but you can see the list of 7 different include files you can use.

3

I tried that already, unfortunately:

#include <d3dkmddi.h>
//#include <d3dkmddi_pext.h>
//#include <dxgdmm.h>
//#include <vidpriv.h>
//#include <dispmprt.h>
//#include <dmm_diag.h>
//#include <d3dkmthk.h>

#include <d3dkmdt.h> // D3DKMDT_VIDEO_SIGNAL_STANDARD

d3dkmddi.h is the include path, but including it prior to d3dkmdt.h yields a compiler error (MDL type undefined):

1>c:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared\d3dkmddi.h(3739): error C2143: syntax error: missing ';' before '*'
1>c:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared\d3dkmddi.h(3739): error C2238: unexpected token(s) preceding ';'
     .
     .
     .

dispmprt.h and d3dkmthk.h are located in C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\km\, which isn’t in my (UMDF project) include path. I’m assuming it’s not a good idea to include kernel-mode-specific headers in a user-mode driver project…

The other four don’t seem to exist.

4

Follow Up from Microsoft (as an FYI for anyone reading this later):

You are correct that you cannot include this file in an indirect display project. The Indirect Display Sample simply adds the hard-coded numerical value of 255 (D3DKMDT_VSS_OTHER) for videoStandard. If you don’t want to hard-code the value, the dev team suggested that one approach would be to copy the D3DKMDT_VIDEO_SIGNAL_STANDARD definition to your project.