Hi Nicholas,
I don't know how to find the call stack ot type of exeption, or I'm just not
familiar with the terms you are using (my ignorance), but I will try to
answer:
Executing the code:
-------------------------------
string target=
http://www.microsoft.com;
System.Diagnostics.Process.Start(target);
causes an error with the following message:
-------------------------------------------
An unhandled exception of type 'System.ComponentModel.Win32Exception'
occurred in system.dll
Additional information: The system cannot find the file specified
The output panel displays the information below:
-----------------------------------------------------------
An unhandled exception of type 'System.ComponentModel.Win32Exception'
occurred in system.dll
Additional information: The system cannot find the file specified
Unhandled Exception: System.ComponentModel.Win32Exception: The system cannot
find the file specified
at System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo
startInfo)
at System.Diagnostics.Process.Start()
at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
at System.Diagnostics.Process.Start(String fileName)
at WindowsApplication3.Main_form.toolBar1_ButtonClick(Object sender,
ToolBarButtonClickEventArgs e) in e:\ms projects\email reference\visual
studio projects\email reference - main\form_main.cs:line 3533
at System.Windows.Forms.ToolBar.OnButtonClick(ToolBarButtonClickEventArgs e)
at System.Windows.Forms.ToolBar.WmReflectCommand(Message& m)
at System.Windows.Forms.ToolBar.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.SendMessage(IntPtr hWnd, Int32
msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.Control.SendMessage(Int32 msg, IntPtr wparam, IntPtr
lparam)
at System.Windows.Forms.Control.ReflectMessageInternal(IntPtr hWnd, Message&
m)
at System.Windows.Forms.Control.WmCommand(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc,
IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
at System.Windows.Forms.Control.DefWndProc(Message& m)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button,
Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ToolBar.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at
System.Windows.Forms.ComponentManager.System.Windows.Forms.UnsafeNativeMetho
ds+IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason,
Int32 pvLoopData)
at System.Windows.Forms.ThreadContext.RunMessageLoop(Int32 reason,
ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at WindowsApplication3.Main_form.Main() in e:\ms projects\email
reference\visual studio projects\email reference - main\form_main.cs:line
2894
The program '[3384] Email reference.exe' has exited with code 0 (0x0).
Nicholas Paldino said:
Michel,
What is the call stack and the type of the exception when you try it the
first way? Perhaps there is a problem with a lower-level component
somewhere.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)
Michel H said:
Hello everyone,
While it seems simple to me, I just want to have a URL in my windows
application that people can click and then launch the URL in the default
browser. Same thing with a mailto: link.
Here is the code i'm trying to use which comes straight from the microsoft
site:
string target= "
http://www.microsoft.com";
try
{
System.Diagnostics.Process.Start(target);
}
catch
(
System.ComponentModel.Win32Exception noBrowser)
{
if (noBrowser.ErrorCode==-2147467259)
MessageBox.Show(noBrowser.Message);
}
catch (System.Exception other)
{
MessageBox.Show(other.Message);
}
However, I get a "The system cannot find the file specified" .......
Ok so I tried something else, such as calling the Shell32.dll library:
I made a class as such:
public class Class_shell32
{
[DllImport("Shell32.dll",CharSet=CharSet.Auto)]
public static extern IntPtr ShellExecute(
IntPtr hwnd,
string lpVerb,
string lpFile,
string lpParameters,
string lpDirectory,
int nShowCmd );
}
and I call it like this:
IntPtr returned_handle;
returned_handle = Class_shell32.ShellExecute(this.Handle,
"
http://www.cnn.com","",null,null,3);
While this doesn't cause an error, the value of returned_handle is less than
32, indicating that the document could not be launched....
Anyone have any ideas?
Michel.
