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DirectInput8Create() problems

Started by eco Jul 6, 2001 at 2:46 AM 7 replies 7.8k views

Original Post

Jul 6, 2001 at 2:46 AM

Ok. My code compiles fine but I can''t use Direct Input because this function (DirectInput8Create() ) fails. Here is my code:

  
HRESULT hr;
		hr = DirectInput8Create(p_Config.hinst, DIRECTINPUT_VERSION, IID_IDirectInput8, (void **)DInput, NULL);
		if(FAILED(hr))
		{
			if(hr == DIERR_INVALIDPARAM)
				Debug += "*** DirectInput8Create() FAILED *** Invalid Params";
			else if(hr == DIERR_BETADIRECTINPUTVERSION)
				Debug += "*** DirectInput8Create() FAILED *** Beta Direct Input Version";
			else if(hr == DIERR_OLDDIRECTINPUTVERSION)
				Debug += "*** DirectInput8Create() FAILED *** Old Direct Input Version";
			else if(hr == DIERR_OUTOFMEMORY)
				Debug += "*** DirectInput8Create() FAILED *** Out of Memory";
			else
			{
				char buffer[512];
				sprintf(buffer, "%s", DXGetErrorString8(hr));
				char buffer2[512];

				
				sprintf(buffer2, "*** DirectInput8Create() FAILED *** Error: %s", buffer);
				Debug += buffer2;
			}
			return false;

When run, it doesn''t return any of the possible return values for DirectInput8Create(), instead DirectInput8Create() returns E_POINTER (An invalid pointer, usually NULL, was passed as a parameter). p_Config.hinst gets it value from the hinstance of the program (Config.hinst = hinstance

. This is part of a class. LPDIRECTINPUT8 DInput is a private member of the class. Any ideas? Thanks, eco

Tornado

Jul 6, 2001 at 3:05 AM

Maybe:

hr = DirectInput8Create(p_Config.hinst, DIRECTINPUT_VERSION, IID_IDirectInput8, (void **)&DInput, NULL);

- Goblineye Entertainment
The road to success is always under construction

eco

Jul 6, 2001 at 3:13 AM

Always so easy for you guys isn''t it? Who knows why I took the & out in the first place but now it works and I''m happy. Thanks Tornado.

-eco

Tornado

Jul 6, 2001 at 10:23 AM

No problem

Sorry if I sounded a bit arrogant, I was in a hurry

- Goblineye Entertainment
The road to success is always under construction

chench

Aug 30, 2011 at 1:54 PM

Here is my code, I have the problem too

,

[code]
HRESULT hr;

HINSTANCE hInstance = (HINSTANCE)GetModuleHandle(NULL);

hr = DirectInput8Create(hInstance,
DIRECTINPUT_VERSION,
IID_IDirectInput8,
(void**)&m_pDI,
NULL);

if ( FAILED(hr) ) return false;

[/code]

I define DIRECTINPUT_VERSION in my header file

#define DIRECTINPUT_VERSION 0x0800

chench

Sep 1, 2011 at 12:36 PM

I know my problem
I never call the CInput's constructor
so just add the following statement will solve the problem

CInput* pInput = new CInput

pInput->Init(hWnd)

Evil Steve

Sep 1, 2011 at 12:49 PM

I'm glad you found the solution to your problem, and congratulations on reviving a thread that's over 10 years old

However - that just goes to show you how old DirectInput is - you really shouldn't be using it if you can help it, and absolutely not for keyboard or mouse input.

chench

Sep 15, 2011 at 8:07 AM

[quote name='Evil Steve' timestamp='1314881380' post='4856268']
I'm glad you found the solution to your problem, and congratulations on reviving a thread that's over 10 years old

However - that just goes to show you how old DirectInput is - you really shouldn't be using it if you can help it, and absolutely not for keyboard or mouse input.
[/quote]

I was just learning DirectInput, I do not know what could replace it

Washu

Sep 15, 2011 at 8:57 AM

...

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