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Register for more specific device change events

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This should make the WndProc method execution leaner
This commit is contained in:
Travis Nickles 2018-10-16 14:35:41 -05:00
parent 722bdf9670
commit 2029cc5531
2 changed files with 18 additions and 2 deletions
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1
DS4Windows/DS4Control/ScpDevice.cs
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@ -181,6 +181,7 @@ namespace DS4Windows
public const Int32 DEVICE_NOTIFY_SERVICE_HANDLE = 0x0001;
public const Int32 DEVICE_NOTIFY_ALL_INTERFACE_CLASSES = 0x0004;
public const Int32 WM_CREATE = 0x0001;
public const Int32 WM_DEVICECHANGE = 0x0219;
public const Int32 DIGCF_PRESENT = 0x0002;

19
DS4Windows/DS4Forms/DS4Form.cs
View File

@ -1037,14 +1037,29 @@ Properties.Resources.DS4Update, MessageBoxButtons.YesNo, MessageBoxIcon.Question
private int hotplugCounter = 0;
private object hotplugCounterLock = new object();
private const int DBT_DEVNODES_CHANGED = 0x0007;
private const int DBT_DEVICEARRIVAL = 0x8000;
private const int DBT_DEVICEREMOVECOMPLETE = 0x8004;
protected override void WndProc(ref Message m)
{
if (m.Msg == ScpDevice.WM_DEVICECHANGE)
if (m.Msg == ScpDevice.WM_CREATE)
{
Guid hidGuid = new Guid();
NativeMethods.HidD_GetHidGuid(ref hidGuid);
IntPtr outHandle = new IntPtr();
bool result = ScpDevice.RegisterNotify(this.Handle, hidGuid, ref outHandle);
if (!result)
{
ScpForm_Closing(this,
new FormClosingEventArgs(CloseReason.ApplicationExitCall, false));
}
}
else if (m.Msg == ScpDevice.WM_DEVICECHANGE)
{
if (runHotPlug)
{
Int32 Type = m.WParam.ToInt32();
if (Type == DBT_DEVNODES_CHANGED)
if (Type == DBT_DEVICEARRIVAL ||
Type == DBT_DEVICEREMOVECOMPLETE)
{
lock (hotplugCounterLock)
{