In case of D3D9 the CreateQuery call can be used to retrieve status

information. According to MSDN the 'ppQuery' parameter can be set to NULL to detect if a certain query Type is supported.

In case of D3D9 the CreateQuery call can be used to retrieve status
9970133f · Roderick Colenbrander · Alexandre Julliard · 55942702 · 9970133f
Commit 9970133f authored Oct 31, 2005 by Roderick Colenbrander Committed by Alexandre Julliard Oct 31, 2005
Show whitespace changes
Inline Side-by-side

Showing with 1 addition and 3 deletions

query.c dlls/d3d9/query.c +1 -3

No files found.
--- a/dlls/d3d9/query.c
+++ b/dlls/d3d9/query.c
@@ -124,9 +124,7 @@ HRESULT WINAPI IDirect3DDevice9Impl_CreateQuery(LPDIRECT3DDEVICE9 iface, D3DQUER
  HRESULT hr = D3D_OK;

  TRACE("(%p) Relay\n", This);
-  if (NULL == ppQuery) {
-    return D3DERR_INVALIDCALL;
-  }
+
  /* Allocate the storage for the device */
  object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirect3DQuery9Impl));
  if (NULL == object) {