private void OnDeviceChange(DeviceBroadcastVolume DevDesc, DeviceChangeEventType EventType)
{
if (DeviceChange != null)
{
foreach (char ch in DevDesc.Drives)
{
DeviceChangeEventArgs a = new DeviceChangeEventArgs(ch, EventType);
DeviceChange(this, a);
}
}
}
private void OnDeviceChange(DeviceBroadcastVolume DevDesc, DeviceChangeEventType EventType)
{
if (DeviceChange != null)
{
foreach (char ch in DevDesc.Drives)
{
DeviceChangeEventArgs a = new DeviceChangeEventArgs(ch, EventType);
DeviceChange(this, a);
}
}
}
protected override void WndProc(ref Message m)
{
if (m.Msg == WM_DEVICECHANGE)
{
DeviceBroadcastHeader head;
switch (m.WParam.ToInt32())
{
/*case DBT_DEVNODES_CHANGED :
* break;
* case DBT_CONFIGCHANGED :
* break;*/
case DBT_DEVICEARRIVAL:
head = (DeviceBroadcastHeader)Marshal.PtrToStructure(m.LParam, typeof(DeviceBroadcastHeader));
if (head.DeviceType == DeviceType.LogicalVolume)
{
DeviceBroadcastVolume DevDesc = (DeviceBroadcastVolume)Marshal.PtrToStructure(m.LParam, typeof(DeviceBroadcastVolume));
if (DevDesc.Flags == VolumeChangeFlags.Media)
{
OnDeviceChange(DevDesc, DeviceChangeEventType.DeviceInserted);
}
}
break;
/*case DBT_DEVICEQUERYREMOVE :
* break;
* case DBT_DEVICEQUERYREMOVEFAILED :
* break;
* case DBT_DEVICEREMOVEPENDING :
* break;*/
case DBT_DEVICEREMOVECOMPLETE:
head = (DeviceBroadcastHeader)Marshal.PtrToStructure(m.LParam, typeof(DeviceBroadcastHeader));
if (head.DeviceType == DeviceType.LogicalVolume)
{
DeviceBroadcastVolume DevDesc = (DeviceBroadcastVolume)Marshal.PtrToStructure(m.LParam, typeof(DeviceBroadcastVolume));
if (DevDesc.Flags == VolumeChangeFlags.Media)
{
OnDeviceChange(DevDesc, DeviceChangeEventType.DeviceRemoved);
}
}
break;
/*case DBT_DEVICETYPESPECIFIC :
* break;*/
}
}
base.WndProc(ref m);
}
