/// <summary>
/// Adds a key filtering data to the collection of key filters of the active device.
/// If the key filtering mode of the active device is not currently set to
/// 'KEY_FLAG_SCANCODE', it will be set to this mode.
/// </summary>
/// <param name="filterData">Structure that contains the key filtering data to be added.</param>
public void KeyboardAddKeyFiltering(KeyFilterData filterData)
{
var currentFiltering = KeyboardGetKeyFiltering();
if (currentFiltering.FlagOrCount == 0 || currentFiltering.FilterMode != FilterMode.KEY_FLAG_AND_SCANCODE)
{
currentFiltering.FilterMode = FilterMode.KEY_FLAG_AND_SCANCODE;
currentFiltering.FlagOrCount = 1;
currentFiltering.FilterData = new KeyFilterData[1] {
filterData
};
KeyboardSetFiltering(currentFiltering);
return;
}
for (int i = 0; i < currentFiltering.FilterData.Length; i++)
{
if (currentFiltering.FilterData[i].KeyFlagPredicates == filterData.KeyFlagPredicates &&
currentFiltering.FilterData[i].ScanCode == filterData.ScanCode)
{
return;//already exists
}
}
Array.Resize(ref currentFiltering.FilterData, currentFiltering.FilterData.Length + 1);
currentFiltering.FilterData[currentFiltering.FilterData.Length - 1] = filterData;
currentFiltering.FlagOrCount = (ushort)currentFiltering.FilterData.Length;
KeyboardSetFiltering(currentFiltering);
}
/// <summary>
/// Removes a key filtering data from the collection of key filters of the active device.
/// </summary>
/// <param name="filterData">Filter data to be removed.</param>
public void KeyboardRemoveKeyFiltering(KeyFilterData filterData)
{
var currentFiltering = KeyboardGetKeyFiltering();
if (currentFiltering.FlagOrCount == 0 || currentFiltering.FilterData == null || currentFiltering.FilterMode != FilterMode.KEY_FLAG_AND_SCANCODE)
{
return;
}
currentFiltering.FilterData = currentFiltering.FilterData.Where(d => d.KeyFlagPredicates != filterData.KeyFlagPredicates ||
d.ScanCode != filterData.ScanCode).ToArray();
if (currentFiltering.FilterData.Length == 0)
{
currentFiltering.FilterMode = FilterMode.KEY_NONE;
}
KeyboardSetFiltering(currentFiltering);
}