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POI just closed my application exited and got Win32Exception Error creating window handle what may do that?
 

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  1. POI just closed my application exited and got Win32Exception Error creating window handle what may do that?
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    <p>I read somewhere that i need to dispose objects when closing the application ?</p> <p>I have this properties i did to use them in tow functions i needed to invoke them since im using a backgroundworker.</p> <p>In most of the times when i closed my application it was ok but now i got this exception.</p> <pre><code>private string CpuTextLabelProperty { set { if (InvokeRequired) { BeginInvoke(new Action(() =&gt; CpuTemperature_label.Text = value), null); } } get { return CpuTemperature_label.Text; } } private Point CpuLocationLabelProperty { set { if (InvokeRequired) { BeginInvoke(new Action(() =&gt; CpuTemperature_label.Location = new Point(210, 200)), null); } } get { return CpuTemperature_label.Location; } } private string GpuTextLabelProperty { set { if (InvokeRequired) { BeginInvoke(new Action(() =&gt; GpuTemperature_label.Text = value), null); } } get { return GpuTemperature_label.Text; } } private Point GpuLocationLabelProperty { set { if (InvokeRequired) { BeginInvoke(new Action(() =&gt; GpuTemperature_label.Location= new Point(210,100)), null); } } get { return GpuTemperature_label.Location; } } private string Label4TextProperty { set { if (InvokeRequired) { BeginInvoke(new Action(() =&gt; label4.Text = value), null); } } } </code></pre> <p>The exception is on the property: GpuTextLabelProperty inside the get on the line:</p> <p>return GpuTemperature_label.Text;</p> <p>Win32Exception - Error creating window handle</p> <p>My Form1 closing event:</p> <pre><code>private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (MessageBox.Show("Are you Sure you want to Exit. Click Yes to Confirm and No to continue", "WinForm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No) { e.Cancel = true; } else { this.BeginInvoke((MethodInvoker)delegate { this.Close(); }); } } </code></pre> <p>If i need ot dispose something wich ones ? And how ?</p> <p>This is the functions im using the properties:</p> <pre><code>private void cpuView() { Computer myComputer = new Computer(); myComputer = new Computer(settings) { CPUEnabled = true }; myComputer.Open(); Trace.WriteLine(""); foreach (var hardwareItem in myComputer.Hardware) { if (hardwareItem.HardwareType == HardwareType.CPU) { hardwareItem.Update(); foreach (IHardware subHardware in hardwareItem.SubHardware) subHardware.Update(); foreach (var sensor in hardwareItem.Sensors) { settings.SetValue("sensor", sensor.Value.ToString()); if (sensor.SensorType == SensorType.Temperature) { sensor.Hardware.Update(); settings.GetValue("sensor", sensor.Value.ToString()); int t = CpuTextLabelProperty.Length; if (t &gt;= 4) { CpuLocationLabelProperty = new Point(210, 200); // not working to check everything about the locations \\ } else { CpuLocationLabelProperty = new Point(250, 200); } CpuTextLabelProperty = sensor.Value.ToString() + "c";//String.Format("{0} Temperature = {1}c", sensor.Name, sensor.Value.HasValue ? sensor.Value.Value.ToString() : "no value"); tempCpuValue = sensor.Value; break; } } } } } private void gpuView() { Computer computer = new Computer(); computer.Open(); computer.GPUEnabled = true; foreach (var hardwareItem in computer.Hardware) { if (videoCardType("ati", "nvidia") == true) { HardwareType htype = HardwareType.GpuNvidia; if (hardwareItem.HardwareType == htype) { foreach (var sensor in hardwareItem.Sensors) { if (sensor.SensorType == SensorType.Temperature) { sensor.Hardware.Update(); if (sensor.Value.ToString().Length &gt; 0) { if (GpuTextLabelProperty.Length &lt; 1) { if (UpdatingLabel(sensor.Value.ToString(), string.Empty)) { // Label8 = GpuText; } } else if (UpdatingLabel(sensor.Value.ToString(), GpuTextLabelProperty.Substring(0, GpuTextLabelProperty.Length - 1))) { // Label8 = GpuText; } GpuTextLabelProperty = sensor.Value.ToString() + "c"; tempGpuValue = sensor.Value; //label8.Visible = true; } int t = GpuTextLabelProperty.Length; if (t &gt;= 4) { GpuLocationLabelProperty = new Point(210, 100); } else { GpuLocationLabelProperty = new Point(250, 100); } // timer2.Interval = 1000; if (sensor.Value &gt; 90) { Logger.Write("The current temperature is ===&gt; " + sensor.Value); button1.Enabled = true; } //this.Select(); } } } } else { HardwareType htype = HardwareType.GpuAti; if (hardwareItem.HardwareType == htype) { foreach (var sensor in hardwareItem.Sensors) { if (sensor.SensorType == SensorType.Temperature) { sensor.Hardware.Update(); if (sensor.Value.ToString().Length &gt; 0) { if (GpuTextLabelProperty.Length &lt; 1) { if (UpdatingLabel(sensor.Value.ToString(), string.Empty)) { // Label8 = GpuText; } } else if (UpdatingLabel(sensor.Value.ToString(), GpuTextLabelProperty.Substring(0, GpuTextLabelProperty.Length - 1))) { // Label8 = GpuText; } GpuTextLabelProperty = sensor.Value.ToString() + "c"; tempGpuValue = sensor.Value; //label8.Visible = true; } int t = GpuTextLabelProperty.Length; if (t &gt;= 4) { GpuLocationLabelProperty = new Point(210, 100); } else { GpuLocationLabelProperty = new Point(250, 100); } //timer2.Interval = 1000; if (sensor.Value &gt; 90) { Logger.Write("The current temperature is ===&gt; " + sensor.Value); button1.Enabled = true; } this.Select(); } } } } } } </code></pre> <p>And this is the full exception message:</p> <pre><code>System.ComponentModel.Win32Exception was unhandled by user code Message=Error creating window handle. Source=System.Windows.Forms ErrorCode=-2147467259 NativeErrorCode=87 StackTrace: at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp) at System.Windows.Forms.Control.CreateHandle() at System.Windows.Forms.Control.get_Handle() at System.Windows.Forms.Control.get_WindowText() at System.Windows.Forms.Control.get_Text() at System.Windows.Forms.Label.get_Text() at HardwareMonitoring.Form1.get_GpuTextLabelProperty() in D:\C-Sharp\HardwareMonitoring\HardwareMonitoring\Hardwaremonitoring\Form1.cs:line 613 at HardwareMonitoring.Form1.gpuView() in D:\C-Sharp\HardwareMonitoring\HardwareMonitoring\Hardwaremonitoring\Form1.cs:line 412 at HardwareMonitoring.Form1.backgroundWorker1_DoWork(Object sender, DoWorkEventArgs e) in D:\C-Sharp\HardwareMonitoring\HardwareMonitoring\Hardwaremonitoring\Form1.cs:line 670 at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) InnerException: </code></pre>
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    1. CONow i quit again and now i got NullReferenceException: System.NullReferenceException was unhandled Message=Object reference not set to an instance of an object. Source=mscorlib StackTrace: at System.Runtime.InteropServices.Marshal.ReleaseComObject(Object o) at System.Management.ManagementObjectCollection.Finalize() InnerException:
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    2. COThe null exception opened new window in runtime with a message no source available. I cant figure out whats going on.
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      1. POI just closed my application exited and got Win32Exception Error creating window handle what may do that?
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