Hi,
I got some problems with buffered input of keyboard, here's the code:
Here's the init:
void Keyboard::init(LPDIRECTINPUT8 pDI, HWND hWND)
{
hWnd = hWND;
LogManager& l = LogManager::getSingleton();
l.log("Keyboard: Initializing keyboard...");
KBuffer = (DIDEVICEOBJECTDATA*)malloc(sizeof(DIDEVICEOBJECTDATA) * buffersize);
if(!(KBuffer)) l.log("Unable to allocate memory for keyboard buffer!");
if(FAILED(
pDI->CreateDevice(GUID_SysKeyboard, &defaultKeyboard, NULL)))
{
l.log("Unable to create keyboard device!");
};
if(FAILED(
defaultKeyboard->SetDataFormat(&c_dfDIKeyboard)))
{
l.log("Unable to set data format for keyboard!");
};
if(FAILED(
defaultKeyboard->SetCooperativeLevel(hWnd, DISCL_FOREGROUND | DISCL_EXCLUSIVE)))
{
l.log("Unable to set a cooperative level of keyboard!");
};
{
DIPROPDWORD dipdw;
dipdw.diph.dwSize = sizeof(DIPROPDWORD);
dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
dipdw.diph.dwObj = 0;
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.dwData = buffersize;
if(FAILED(
defaultKeyboard->SetProperty(DIPROP_BUFFERSIZE, &dipdw.diph)))
{
l.log("Unable to set a buffer for keyboard");
};
};
if(FAILED(
defaultKeyboard->Acquire()))
{
l.log("Unable to acquire a keyboard!");
};
l.log("Keyboard: Keyboard initialized.");
};
And this is repeated every frame, in purpose of getting the input.
void Keyboard::update()
{
DWORD dwItems = buffersize;
DIDEVICEOBJECTDATA *act;
switch(
defaultKeyboard->GetDeviceData(sizeof(DIDEVICEOBJECTDATA),
KBuffer, &dwItems, 0)
)
{
case DI_OK:
break;
case DI_BUFFEROVERFLOW:
LogManager::getSingleton().log("Keyboard buffer overflow!");
break;
default:
LogManager::getSingleton().log("Unknown keyboard error!");
break;
};
for(DWORD k = 0; k < dwItems; ++k)
{
act = &KBuffer[k];
if (act->dwData & 0x80)
{
processKeyDown(act->dwOfs);
}
else
{
processKeyUp(act->dwOfs);
};
};
};
I expected the processKeyDown function to get only values between 0-256, but it sometimes gets minus-something-huge. What's the error?
