Balluff MATRIX VISION mvBlueFOX Series, Техническое руководство, Страница: 82 / 238

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delete [] prop_array[pr].stringArray;
\
}
//------------------------------------------------------------------------------
// scanning the property list props for a property with name property_name
MVProperty* GetProperty( MVProperty* props, unsigned int property_count, char
* property_name )
//------------------------------------------------------------------------------
{
for ( unsigned int pr = 0; pr < property_count && props != 0; pr++ )
{
// please feel free to replace standard c string handling to Standard C++ Library strings
if ( strcmp( props[pr].propertyName, property_name ) == 0 )
{
return &props[pr];
}
}
return 0;
}
//------------------------------------------------------------------------------
// asking the ds-interface for the property list
unsigned long ScanAllProperties( IAMStreamConfig* pvsc, MVProperty* props, unsigned int property_count )
//------------------------------------------------------------------------------
{
IKsPropertySet* ksProp;
unsigned long propCnt = 0;
// try to get the ikspropertyset pointer
HRESULT hr = pvsc->QueryInterface( IID_IKsPropertySet, ( void
** )&ksProp );
if ( SUCCEEDED( hr ) )
{
DWORD cbReturned;
ZeroMemory( props, property_count *
sizeof ( MVProperty ) );
// asking for the MATRIX VISION property interface. If one could be found then fill the propertylist
props
hr = ksProp->Get( DIRECT_SHOW_ACQUIRE_PROPERTYSET, MVPropIDReadProperties, NULL, 0,
props, property_count * sizeof ( MVProperty ), &cbReturned );
//if successful returned then our list shows something like this
//props[0x0]
{propertyName="IOSubSystem/DigitalInputThreshold" value={s= "2V" }...
//props[0x1] {propertyName="IOSubSystem/DigitalInputs" value={s= "Off" }...
//props[0x2] {propertyName="IOSubSystem/DigitalOutputs" value={s= "Off" }...
//props[0x3] {propertyName="IOSubSystem/HardwareRealTimeController/HRTCtrl_0/Filename" value={s=
"default.rtp" }...
//props[0x4] {propertyName="IOSubSystem/HardwareRealTimeController/HRTCtrl_0/Mode" value={s=
"Stop" } ...
//props[0x5] {propertyName="IOSubSystem/HardwareRealTimeController/HRTCtrl_0/ProgramSize"
value={i=0x5 }...
//...
//props[0x40]
{propertyName="ImagingSubsystem/Setting/Base/Camera/AutoExposeControl" value={s=
"Off" } ...
//props[0x41] {propertyName="ImagingSubsystem/Setting/Base/Camera/AutoGainControl" value={s= "Off"
} ...
//props[0x42] {propertyName="ImagingSubsystem/Setting/Base/Camera/BinningMode" value={s= "Off" }
...
//props[0x43] {propertyName="ImagingSubsystem/Setting/Base/Camera/ExposeMode" value={s= "Standard"
} ...
//props[0x44] {propertyName="ImagingSubsystem/Setting/Base/Camera/Expose_us" value={i=0xea60 } ...
//props[0x45] {propertyName="ImagingSubsystem/Setting/Base/Camera/FlashMode" value={s= "Off" } ...
//props[0x46] {propertyName="ImagingSubsystem/Setting/Base/Camera/FrameDelay_us" value={i=0x0 }
...
//props[0x47] {propertyName="ImagingSubsystem/Setting/Base/Camera/Gain_dB" value={ f=0.0 } ...
propCnt = cbReturned / sizeof ( MVProperty );
for ( DWORD pr = 0; pr < propCnt; pr++ )
{
//asking for the actual values of all properties
hr = ksProp->Get( DIRECT_SHOW_ACQUIRE_PROPERTYSET, MVPropIDRead, NULL, 0, &props[pr], sizeof (
props[pr] ), &cbReturned );
//if stringArraySize is greater than 0 this property is from type stringarray.
if ( props[pr].stringArraySize > 0 )
{
//allocate some buffer for the stringArray
props[pr].stringArray = new const char
* [props[pr].stringArraySize];
//fill the allocate stringArray with references to the pointers from the internal
properties,
//do not change or free these pointers
hr = ksProp->Get( DIRECT_SHOW_ACQUIRE_PROPERTYSET, MVPropIDReadStringArray, NULL, 0,
&props[pr], sizeof ( props[pr] ), &cbReturned );
}
}
ksProp->Release();
}
return propCnt;
}
//------------------------------------------------------------------------------
unsigned long functionXY( ..., bool bBayerOFF, double gain )
//------------------------------------------------------------------------------
{
// ...
IKsPropertySet* ks_prop;
hr = gcap.pVSC->QueryInterface( IID_IKsPropertySet, (
void
** )&ks_prop );
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