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| System.ComponentModel.Win32Exception...error creating window handl |
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This message was discovered on microsoft.public.dotnet.general.
Responses highlighted in red are from those people who are likely to be able to contribute good, authoratitive information to this discussion. They include Microsoft employees, MVP's and others who IMHO contribute well to these kinds of discussions.
| noiture777 (VIP) |
| GOOD ANSWER |
Dear C# experts,
i face a problem which let my project get stopped ..when trying to run
...i found the following exception
"An unhandled exception of type 'System.ComponentModel.Win32Exception'
occurred in system.windows.forms.dll
Additional information: Error creating window handle."
at this lines of my code
private void frmMdiMain_Load(object sender, System.EventArgs e)
{ string st ;
frm.MdiParent = this;
try
{
frm.Show();
}
catch (Exception ex)
{
st =(ex.Message);
Console.Write(st);
}
}
/// st = error creating window handle.
could you tell me kindly what shall i do?!
Thank you in Advance
urs
Mohannad
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| Sijin Joseph |
| GOOD ANSWER |
Where are you initializing frm?
Also make sure that your parent form has MdiContainer = True
Sijin Joseph
http://www.indiangeek.net
http://weblogs.asp.net/sjoseph
noiture777 wrote:
[Original message clipped]
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| Mohannad (VIP) |
| GOOD ANSWER |
the sequence of my code is like this :
private void InitializeComponent()
{ ...
this.IsMdiContainer = true; // it is
already exists
....}
Form1 frm = new Form1(); //here frm is created
frmAlarmBox AlarmBox = new frmAlarmBox();
TcpIpConnection TCPListen;
bool blnAlarmState = false;
private void frmMdiMain_Load(object sender, System.EventArgs e)
{
frm.MdiParent = this;
frm.Show();
}
static void Main()
{
Application.Run(new frmMdiMain ());
}
/********************************************************/
[Original message clipped]
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| Mohannad (VIP) |
| GOOD ANSWER |
the sequence of my code is like this :
private void InitializeComponent()
{ ...
this.IsMdiContainer = true; // it is
already exists
....}
Form1 frm = new Form1(); //here frm is created
frmAlarmBox AlarmBox = new frmAlarmBox();
TcpIpConnection TCPListen;
bool blnAlarmState = false;
private void frmMdiMain_Load(object sender, System.EventArgs e)
{
frm.MdiParent = this;
frm.Show();
}
static void Main()
{
Application.Run(new frmMdiMain ());
}
/********************************************************/
[Original message clipped]
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