/// <summary>
/// This function checks if a key event would be processed but without processing it. This could be helpful to prevent bad handling report.
/// </summary>
/// <param name="key">One of the <see cref="AntTweakBar.Tw.Key"/> codes.</param>
/// <param name="modifiers">One or a combination of the <see cref="AntTweakBar.Tw.KeyModifiers"/> constants.</param>
/// <returns>Whether the key event would have been handled by AntTweakBar.</returns>
public static bool KeyTest(Tw.Key key, KeyModifiers modifiers)
{
return KeyTest((char)key, modifiers);
}
public StructMember(IntPtr name, Tw.VariableType type, UIntPtr offset, IntPtr defString) : this()
{
Name = name;
Type = type;
Offset = offset;
DefString = defString;
}
/// <summary>
/// Call this function to inform AntTweakBar when a keyboard event occurs.
/// </summary>
/// <param name="key">One of the <see cref="AntTweakBar.Tw.Key"/> codes.</param>
/// <param name="modifiers">One or a combination of the <see cref="AntTweakBar.Tw.KeyModifiers"/> constants.</param>
/// <returns>Whether the key event has been handled by AntTweakBar.</returns>
public static bool KeyPressed(Tw.Key key, KeyModifiers modifiers)
{
return KeyPressed((char)key, modifiers);
}
/// <summary>
/// This function creates a new <see cref="AntTweakBar.Tw.VariableType"/> corresponding to a structure.
/// </summary>
public static VariableType DefineStruct(String name, IDictionary<String, StructMemberInfo> structMembers, int structSize, Tw.SummaryCallback callback, IntPtr clientData)
{
if (name == null) {
throw new ArgumentNullException("name");
} else if (structMembers == null) {
throw new ArgumentNullException("structMembers");
} else if (structSize == 0) {
throw new ArgumentOutOfRangeException("structSize");
}
var structData = new List<NativeMethods.StructMember>();
try
{
foreach (var kv in structMembers) {
IntPtr namePtr = IntPtr.Zero;
IntPtr defPtr = IntPtr.Zero;
if (kv.Key == null) {
throw new ArgumentNullException("", "Member name cannot be null.");
}
if (kv.Value.Def == null) {
throw new ArgumentNullException("", "Member definition string cannot be null.");
}
try
{
namePtr = Helpers.PtrFromStr(kv.Key);
defPtr = Helpers.PtrFromStr(kv.Value.Def);
structData.Add(new NativeMethods.StructMember(
namePtr,
kv.Value.Type,
new UIntPtr((uint)kv.Value.Offset),
defPtr
));
}
catch (Exception)
{
if (namePtr != IntPtr.Zero) {
Marshal.FreeCoTaskMem(namePtr);
}
if (defPtr != IntPtr.Zero) {
Marshal.FreeCoTaskMem(defPtr);
}
throw;
}
}
Tw.VariableType structType = NativeMethods.TwDefineStruct(name, structData.ToArray(),
(uint)structData.Count,
new UIntPtr((uint)structSize),
callback, clientData);
if (structType == VariableType.Undefined) {
throw new AntTweakBarException("TwDefineStruct failed.");
}
return structType;
}
finally
{
foreach (var member in structData) {
Marshal.FreeCoTaskMem(member.Name);
Marshal.FreeCoTaskMem(member.DefString);
}
}
}
