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System.ComponentModel.Win32Exception...error creating window handl
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noiture777 (VIP)
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
Reply to this message...
 
    
Sijin Joseph
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]
Reply to this message...
 
    
Mohannad (VIP)
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]
Reply to this message...
 
    
Mohannad (VIP)
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]
Reply to this message...
 
 
System.ComponentModel.Win32Exception
System.Console
System.EventArgs
System.Windows.Forms.Application
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