Getting titles of all openning windows process

[Tedmond]

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

[Jakob Christensen]

I wrote the following sample to get you started:

delegate int EnumWindowsProc (IntPtr hWnd, IntPtr lParam);
[DllImport("user 32.dll")]
static extern bool EnumWindows(Enu mWindowsProc lpEnumFunc, IntPtr
lParam);
[DllImport("user 32.dll")]
static extern int GetWindowText(I ntPtr hWnd, [Out] StringBuilder
lpString, int nMaxCount);
[DllImport("user 32.dll")]
static extern int GetWindowTextLe ngth(IntPtr hWnd);
[DllImport("user 32.dll")]
static extern bool IsWindowVisible (IntPtr hWnd);

private static int PrintText(IntPt r hWnd, IntPtr lParam)
{
if (IsWindowVisibl e(hWnd))
{
int length = GetWindowTextLe ngth(hWnd);
StringBuilder sb = new StringBuilder(l ength + 1);
int res = GetWindowText(h Wnd, sb, sb.Capacity);
if (res > 0)
Console.WriteLi ne(sb.ToString( ));
}
return 1;
}

public static void Main(string[] args)
{
EnumWindowsProc cb = new EnumWindowsProc (PrintText);
EnumWindows(cb, IntPtr.Zero);
}

HTH, Jakob.

--
http://www.dotninjas.dk
http://www.powerbytes.dk
"Tedmond" wrote:

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

[Tedmond]

Thanks Jakob, it works. I have one more question. After I found the
application by title, I want to kill it. However, I used
TerminateProces s(hWnd) but could not kill the window. Do you have any idea?

Thanks for any help.

Tedmond

"Jakob Christensen" wrote:

I wrote the following sample to get you started:

delegate int EnumWindowsProc (IntPtr hWnd, IntPtr lParam);
[DllImport("user 32.dll")]
static extern bool EnumWindows(Enu mWindowsProc lpEnumFunc, IntPtr
lParam);
[DllImport("user 32.dll")]
static extern int GetWindowText(I ntPtr hWnd, [Out] StringBuilder
lpString, int nMaxCount);
[DllImport("user 32.dll")]
static extern int GetWindowTextLe ngth(IntPtr hWnd);
[DllImport("user 32.dll")]
static extern bool IsWindowVisible (IntPtr hWnd);

private static int PrintText(IntPt r hWnd, IntPtr lParam)
{
if (IsWindowVisibl e(hWnd))
{
int length = GetWindowTextLe ngth(hWnd);
StringBuilder sb = new StringBuilder(l ength + 1);
int res = GetWindowText(h Wnd, sb, sb.Capacity);
if (res > 0)
Console.WriteLi ne(sb.ToString( ));
}
return 1;
}

public static void Main(string[] args)
{
EnumWindowsProc cb = new EnumWindowsProc (PrintText);
EnumWindows(cb, IntPtr.Zero);
}

HTH, Jakob.

--
http://www.dotninjas.dk
http://www.powerbytes.dk
"Tedmond" wrote:

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

[Jakob Christensen]

Use the Win32 API function GetWindowThread ProcessId to get the id of the
process that started your window. You can then use the managed class
System.Diagnost ics.Process to kill the process using either Process.Kill or
Process.CloseMa inWindow:

[DllImport("user 32.dll")]
static extern uint GetWindowThread ProcessId(IntPt r hWnd, out int
lpdwProcessId);

// ...
int processId;
GetWindowThread ProcessId(hWnd, out processId);
Process proc = Process.GetProc essById(process Id);
// Request a close (use Kill() to force a close)
proc.CloseMainW indow();

HTH, Jakob.

--
http://www.dotninjas.dk
http://www.powerbytes.dk
"Tedmond" wrote:

Thanks Jakob, it works. I have one more question. After I found the
application by title, I want to kill it. However, I used
TerminateProces s(hWnd) but could not kill the window. Do you have any idea?

Thanks for any help.

Tedmond

"Jakob Christensen" wrote:

I wrote the following sample to get you started:

delegate int EnumWindowsProc (IntPtr hWnd, IntPtr lParam);
[DllImport("user 32.dll")]
static extern bool EnumWindows(Enu mWindowsProc lpEnumFunc, IntPtr
lParam);
[DllImport("user 32.dll")]
static extern int GetWindowText(I ntPtr hWnd, [Out] StringBuilder
lpString, int nMaxCount);
[DllImport("user 32.dll")]
static extern int GetWindowTextLe ngth(IntPtr hWnd);
[DllImport("user 32.dll")]
static extern bool IsWindowVisible (IntPtr hWnd);

private static int PrintText(IntPt r hWnd, IntPtr lParam)
{
if (IsWindowVisibl e(hWnd))
{
int length = GetWindowTextLe ngth(hWnd);
StringBuilder sb = new StringBuilder(l ength + 1);
int res = GetWindowText(h Wnd, sb, sb.Capacity);
if (res > 0)
Console.WriteLi ne(sb.ToString( ));
}
return 1;
}

public static void Main(string[] args)
{
EnumWindowsProc cb = new EnumWindowsProc (PrintText);
EnumWindows(cb, IntPtr.Zero);
}

HTH, Jakob.

--
http://www.dotninjas.dk
http://www.powerbytes.dk
"Tedmond" wrote:

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

[Emmet Gray]

On Thu, 29 Sep 2005 20:26:04 -0700, "Tedmond"
<Te*****@discus sions.microsoft .com> wrote:

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

....or a much simpler approach would be to use the Process class built
into the .Net Framework.

You can enumerate all running processes, you can look at the Title
Text, and you can kill the process.

... all without using any pinvoke to APIs!

http://msdn.microsoft.com/library/de...classtopic.asp

[Jakob Christensen]

That would give you all running processes - not just the ones with a visible
Window.

Regards, Jakob.
--
http://www.dotninjas.dk
http://www.powerbytes.dk
"Emmet Gray" wrote:

On Thu, 29 Sep 2005 20:26:04 -0700, "Tedmond"
<Te*****@discus sions.microsoft .com> wrote:

Dear all,

How can I get all the titles of all openning windows? I found a API in
win32 that called EnumWindows() but it returns only the windows handles, not
titles. How can I get the list just like the Applications tab in Windows Task
Manager?

Thanks,

Tedmond

....or a much simpler approach would be to use the Process class built
into the .Net Framework.

You can enumerate all running processes, you can look at the Title
Text, and you can kill the process.

... all without using any pinvoke to APIs!

http://msdn.microsoft.com/library/de...classtopic.asp