bool UnsafeNativeMethods.IMsoComponentManager.FRevokeComponent(IntPtr dwComponentID)
{
int key = (int)((long)dwComponentID);
if (this._original == null)
{
return(false);
}
if (((this._components == null) || (key <= 0)) || !this._components.ContainsKey(key))
{
return(false);
}
if (((this._refCount == 1) && (SafeNativeMethods.GetCurrentThreadId() == this._creationThread)) && !this.RevokeComponent())
{
return(false);
}
this._refCount--;
this._components.Remove(key);
if (this._refCount <= 0)
{
this.Dispose();
}
if (key == this._activeComponentId)
{
this._activeComponent = null;
this._activeComponentId = 0;
}
if (key == this._trackingComponentId)
{
this._trackingComponent = null;
this._trackingComponentId = 0;
}
return(true);
}
internal ComponentManagerProxy(ComponentManagerBroker broker, UnsafeNativeMethods.IMsoComponentManager original)
{
this._broker = broker;
this._original = original;
this._creationThread = SafeNativeMethods.GetCurrentThreadId();
this._refCount = 0;
}
// Returns true if we need to marshal across threads to access this timer's HWND.
//
private bool GetInvokeRequired(IntPtr hWnd)
{
if (hWnd != IntPtr.Zero)
{
int pid;
int hwndThread = SafeNativeMethods.GetWindowThreadProcessId(new HandleRef(this, hWnd), out pid);
int currentThread = SafeNativeMethods.GetCurrentThreadId();
return(hwndThread != currentThread);
}
return(false);
}
bool UnsafeNativeMethods.IMsoComponentManager.FRevokeComponent(IntPtr dwComponentID)
{
int dwLocalComponentID = unchecked ((int)(long)dwComponentID);
if (_original == null)
{
return(false);
}
if (_components == null || dwLocalComponentID <= 0 || !_components.ContainsKey(dwLocalComponentID))
{
return(false);
}
if (_refCount == 1 && SafeNativeMethods.GetCurrentThreadId() == _creationThread)
{
if (!RevokeComponent())
{
return(false);
}
}
_refCount--;
_components.Remove(dwLocalComponentID);
Debug.Assert(_refCount >= 0, "underflow on ref count");
if (_refCount <= 0)
{
Dispose();
}
if (dwLocalComponentID == _activeComponentId)
{
_activeComponent = null;
_activeComponentId = 0;
}
if (dwLocalComponentID == _trackingComponentId)
{
_trackingComponent = null;
_trackingComponentId = 0;
}
return(true);
}