BOOL TabletBase::LoadCheckWintab(void){
// char WName[50]; /* String to hold window name */
struct tagAXIS TpOri[3]; /* The capabilities of tilt */
double tpvar; /* A temp for converting fix to double */
if(!LoadWintab()) return FALSE;
if (!gpWTInfoA(0, 0, NULL)) return FALSE;
/* get info about tilt */
m_TiltSupport = gpWTInfoA(WTI_DEVICES,DVC_ORIENTATION,&TpOri);
if (m_TiltSupport) {
/* does the tablet support azimuth and altitude */
if (TpOri[0].axResolution && TpOri[1].axResolution) {
/* convert azimuth resulution to double */
tpvar = FIX_DOUBLE(TpOri[0].axResolution);
/* convert from resolution to radians */
m_aziFactor = tpvar/(2*M_PI);
/* convert altitude resolution to double */
tpvar = FIX_DOUBLE(TpOri[1].axResolution);
/* scale to arbitrary value to get decent line length */
m_altFactor = tpvar/1000;
/* adjust for maximum value at vertical */
m_altAdjust = (double)TpOri[1].axMax/m_altFactor;
}
else { /* no so dont do tilt stuff */
m_TiltSupport = FALSE;
}
}
return TRUE;
}
BOOL moTablet::IsTabletInstalled()
{
struct tagAXIS TpOri[3]; // The capabilities of tilt (required)
double dblTpvar; // A temp for converting fix to double (for example)
BOOL bReturn = TRUE;
// check if WinTab available.
if (!WTInfo(0, 0, NULL))
{
MODebug2->Push("WinTab Services Not Available.");
bReturn = FALSE;
}
if (bReturn)
{
// get info about tilt
t_bTiltSupport = WTInfo(WTI_DEVICES,DVC_ORIENTATION,&TpOri);
if (t_bTiltSupport)
{
//used for example
// does the tablet support azimuth and altitude
if (TpOri[0].axResolution && TpOri[1].axResolution) {
// convert azimuth resulution to double
dblTpvar = FIX_DOUBLE(TpOri[0].axResolution);
// convert from resolution to radians
t_dblAziFactor = dblTpvar/(2*moMathf::PI);
// convert altitude resolution to double
dblTpvar = FIX_DOUBLE(TpOri[1].axResolution);
// scale to arbitrary value to get decent line length
t_dblAltFactor = dblTpvar/1000;
// adjust for maximum value at vertical
t_dblAltAdjust = (double)TpOri[1].axMax/t_dblAltFactor;
}
//end of used for example
}
else { // no so don't do tilt stuff
t_bTiltSupport = FALSE;
MODebug2->Push("Tablet does NOT supports tilt!");
} //end tilt support
} //end does tablet exists
return bReturn;
}
