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DirectInput8Create() problem

Started by r Apr 21, 2003 at 2:02 AM 2 replies 500+ views

Original Post

Apr 21, 2003 at 2:02 AM

what is wrong here DirectInput8Create(m_hinstance, DIRECTINPUT_VERSION,IID_IDirectInput8, (void**)&m_lpdi, NULL); m_lpdi->CreateDevice(GUID_SysKeyboard, &m_lpdidevice, NULL); m_lpdidevice->SetDataFormat(&c_dfDIKeyboard); because it makes this Unhandled exception at 0x004139ee in fuckinframewerk.exe: 0xC0000005: Access violation reading location 0x00000000. exactly at calling m_lpdi->CreateDevice() i assume the problem is at directinput8create () that it doesnt return me the right m_lpdi i ''ll appreciate any help thanx for ur time

alnite

410

alnite

Apr 21, 2003 at 3:45 AM

It looked correct for me. Are you sure the exception is exactly at CreateDevice() ?

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Dave Hunt

146

Dave Hunt

Apr 21, 2003 at 11:56 AM

Try checking the return value from the DirectInput8Create call. It''s a very bad idea to assume that every DirectX call will succeed.

One reason it might fail is if m_hinstance isn''t set.

Enselic

Apr 21, 2003 at 12:39 PM

The call to DirectInput8Create probably fails and sets m_lpdi to NULL, hence the AV when you use the pointer the next line.

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