public void StartRecMsg()
{
//[Todo]在这里应该加一个判断，判断是否存在一个form.name=msgForm的窗口****************************
//如果存在，将消息传到这个窗口，如果不存在，创建一个新窗口
//找到当前已经打开的聊天窗口的句柄
string windowsName = "与 " + msgFrom + " 对话中";
IntPtr handle = NativeMethods.FindWindow(null, windowsName);
if (handle != IntPtr.Zero)
{
//对要发送的数据进行封装，直接发string类型，收到会出错
byte[] sarr = Encoding.Default.GetBytes(msgDetail);
int len = sarr.Length;
COPYDATASTRUCT cds;
cds.dwData = (IntPtr)100;
cds.lpData = msgDetail;
cds.cbData = len + 1;
SendMessage(handle, WM_COPYDATA, 0, ref cds);
NativeMethods.FlashWindow(handle, true);
}
else
{
FrmChat formRMsg = new FrmChat(msgIP, msgFrom,msgID, msgDetail);
formRMsg.Text = "与 " + msgFrom + " 对话中";
formRMsg.WindowState = FormWindowState.Minimized;
formRMsg.ShowDialog();
//formRMsg.Show();
//formRMsg.WindowState = FormWindowState.Minimized;
//IntPtr newHandle = FindWindow(null, formRMsg.Text);
//FlashWindow(newHandle, true);
}
}
//双击好有时
private void chatShow_DoubleClickSubItem(object sender, ChatListEventArgs e)
{
ChatListSubItem item = e.SelectSubItem;
item.IsTwinkle = false;
//bool isFormexist;
string windowsName = "与 " + item.NicName + " 对话中";
IntPtr handle = NativeMethods.FindWindow(null, windowsName);
if (handle != IntPtr.Zero)
{
Form frm = (Form)Form.FromHandle(handle);
frm.Activate();
}
else
{
//ipSend为从列表中取出，要发送的对象的IP
string ipSend = item.IpAddress;
string nameSend = item.DisplayName;
string idSend = item.NicName;
string mesSend = string.Empty;
FrmChat fChat = new FrmChat(ipSend, nameSend, idSend, mesSend);
//fChat.Name = lvItem.SubItems[0].Text;
fChat.Text = "与 " + item.NicName + " 对话中";
fChat.Show();
}
}
