Question

End Call Windows Mobile TElephone API

Asked by: ambush276

how do i end a call with windows mobile. I dont know how to use TAPi but basically i have an if statement and inside there i want to basically have a function to end the call or press the RED button.. (on any device)? how would this be done in windows mobile under visual c#? thanks!

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Asked On
2009-09-28 at 16:12:43ID24768591
Tags

c#

,

visual c#

,

windows mobile

Topics

Windows MobileProgramming

,

C# Programming Language

,

Microsoft Visual C#.Net

Participating Experts
1
Points
500
Comments
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Answers

 

by: alexey_gusevPosted on 2009-09-28 at 16:32:55ID: 25444558

if you don't want to deal with TAPI, then look for cprog.exe - that's the phone application from Microsoft - you see on standard phone. some vendors might replace it with their own.

So find a process id of such app, then enumerate the windows to detect which one belongs to that process and finally send WM_KEYDOWN and WM_KEYUP to that window to simulate RED button press (you can look for its exact code in SDK headers)

 

by: ambush276Posted on 2009-09-28 at 16:40:03ID: 25444593

ok..... the code b'c' iknw u need im just curious if anyone has a link cause ive tried that''''' fail

 

by: ambush276Posted on 2009-09-29 at 16:23:35ID: 25454371

ok but that is using the TAPI dword adresses (unless some can explain how)? i need something simpler or someone to take it out of the dword and insert lol. I am a code newb and im looking for something to just literally copy and paste into the if  () area or maybe some prerequ's in public namespace. All in all though i need something that is taht easy, im way to "noob" at coding for the advanced TAPI situation..

Thanks>

 

by: alexey_gusevPosted on 2009-09-29 at 22:51:55ID: 25455923

//F4 = red buton (hangup)
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYDOWN, 0);
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYUP, 0);


 ......

//simulate key press using P/Invoke

[DllImport("coredll.dll")]
public void keybd_event(Keys bVk, byte bScan, KeyEvent dwFlags, int dwExtraInfo);


is it enough for "cut'n'paste" ? :)

 

by: ambush276Posted on 2009-09-30 at 07:03:41ID: 25458935

but does this have any prequ's what goes in name space or if commands. I could get that fine from the website, im talking about what refrences do i need, in teh namespace, does that go directly into the if() statement or itno the public namespace?

 

by: alexey_gusevPosted on 2009-09-30 at 08:48:49ID: 25460136

well, pardon me if it sounds rude, but if you can get it fine from the web, why on earth are you asking the questions? :)

- if() block should contain

/F4 = red buton (hangup)
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYDOWN, 0);
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYUP, 0);

- where you have all "using" statements

using System.Runtime.InteropServices;

- somewhere in your class outside the fucntions etc

//simulate key press using P/Invoke

[DllImport("coredll.dll")]
public void keybd_event(Keys bVk, byte bScan, KeyEvent dwFlags, int dwExtraInfo);


I do advise you to open ANY C# tutorial, otherwise any further discussion makes no sense as you will keep saying "but I'm talking..." whatever I or anyone else posts.

 

by: ambush276Posted on 2009-09-30 at 15:19:10ID: 25464212

getting type or namespace KeyEvent could not be found... ?
   

using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.WindowsMobile.Telephony;
using Microsoft.WindowsMobile.Status;
using System.Runtime.InteropServices;
 
 
namespace celldialer3
{
    public partial class CellDialer3 : Form
    {
        Microsoft.WindowsMobile.Telephony.Phone p;
        SystemState _PhoneCallTalking; // declare it here, so it won't fall out of scope
        //simulate key press using P/Invoke
 
        [DllImport("coredll.dll")]
        public void keybd_event(Keys bVk, byte bScan, KeyEvent dwFlags, int dwExtraInfo);
 
        public CellDialer3()
        {
            InitializeComponent();
            p = new Microsoft.WindowsMobile.Telephony.Phone();
            p.Talk("949344122"); 
            InitializeComponent();
             _PhoneCallTalking = new SystemState(SystemProperty.PhoneCallTalking);
             _PhoneCallTalking.Changed += new ChangeEventHandler(_PhoneCallTalking_Changed);
 
        }
        void _PhoneCallTalking_Changed(object sender, ChangeEventArgs args)
        {
            if (SystemState.PhoneCallTalking == true)
            {
 
 
               //F4 = red buton (hangup)
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYDOWN, 0);
 keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYUP, 0);
 
           }
            }
        }
 
    }
                                              
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by: alexey_gusevPosted on 2009-09-30 at 15:33:35ID: 25464306

oops, right, add the following instead of DllImport declaration:

const int KEYEVENTF_KEYUP = 0x2;
const int KEYEVENTF_KEYDOWN = 0x0;

// I've added "static extern" so (1) VS doesn't try to find that anywhere in your code
// and (2) it can be accessed without creating the instance of the class
// Besides, I've replaced KeyEvent enum by simple int parameter
[DllImport("coredll.dll")]
public static extern void keybd_event(Keys bVk, byte bScan, int dwFlags, int dwExtraInfo);


Then when you call key_event() - remove "KeyEvent." part and see what happens on real device

 

by: ambush276Posted on 2009-09-30 at 16:26:18ID: 25464655

ok i am a compelte noob at code .. can u possible show me in the code what you are talking about (thanks ):)>?

 

by: alexey_gusevPosted on 2009-09-30 at 16:50:03ID: 25464794

literally as I've written :)

replace

[DllImport("coredll.dll")]
public void keybd_event(Keys bVk, byte bScan, KeyEvent dwFlags, int dwExtraInfo);

by

const int KEYEVENTF_KEYUP = 0x2;
const int KEYEVENTF_KEYDOWN = 0x0;

[DllImport("coredll.dll")]
public static extern void keybd_event(Keys bVk, byte bScan, int dwFlags, int dwExtraInfo);


and then

keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYDOWN, 0);
keybd_event(Keys.F4, 0, KeyEvent.KEYEVENTF_KEYUP, 0);

by

keybd_event(Keys.F4, 0, KEYEVENTF_KEYDOWN, 0);
keybd_event(Keys.F4, 0,KEYEVENTF_KEYUP, 0);

20120131-EE-VQP-002

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