public IntPtr WndProc(IntPtr hwnd, int payload, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (payload == (int)WmType.WM_COPYDATA) {
var cd = new CopyDataStruct();
cd = (CopyDataStruct)Marshal.PtrToStructure(lParam, typeof(CopyDataStruct));
handled = true;
WMReceived(new Win32EventArgs(cd));
}
return IntPtr.Zero;
}
/// <summary>
/// Packs the command into a WM_COPYDATA structure.
/// </summary>
/// <param name="cmd"></param>
/// <param name="param"></param>
/// <returns></returns>
private CopyDataStruct packParams(uint cmd, string param)
{
var data = new CopyDataStruct {
dwData = new IntPtr((Int64) cmd),
cbData = (param.Length + 1) * Marshal.SystemDefaultCharSize,
lpData = Marshal.StringToHGlobalUni(param)
};
return data;
}
public Win32EventArgs(CopyDataStruct cd)
{
CopyData = cd;
Payload = Marshal.PtrToStringAuto(cd.lpData, cd.cbData);
Payload = Payload.Substring(0, Payload.IndexOf("\0")).Replace("\0", String.Empty);
}