IDirect3D9* d3d =NULL;
d3d = Direct3DCreate9(D3D_SDK_VERSION);
if (d3d == NULL)
{
//error handle
}
//set Direct3D presentation parameters
D3DPRESENT_PARAMETERS d3dp;
ZeroMemory(&d3dp, sizeof(d3dp));
d3dp.Windowed = TRUE;
d3dp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dp.BackBufferFormat = D3DFMT_UNKNOWN;
//create Direct3D device
IDirect3DDevice9* pDevice =NULL;
HRESULT hr =d3d->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dp, &pDevice );
if (pDevice == NULL)
{
//error handle
}
clGetDeviceIDsFromD3D9NV_fn clGetDeviceIDsFromD3D9NV =
(clGetDeviceIDsFromD3D9NV_fn)clGetExtensionFunctionAddress("clGetDeviceIDsFromD3D9NV");
if (clGetDeviceIDsFromD3D9NV==NULL)
{
//error handle
}
cl_uint uNum(0);
err =clGetDeviceIDsFromD3D9NV(gid, CL_D3D9_DEVICE_NV, pDevice, CL_PREFERRED_DEVICES_FOR_D3D9_NV, 1, &g_Device, &uNum);
I use code above, but when I invoke clGetDeviceIDsFromD3D9NV, I got the return value -1. what`s wrong?
thank you.