private static DialogResult InternalShow(IWin32Window owner,
string text, string caption,
MessageBoxButtons buttons,
MessageBoxIcon icon,
MessageBoxDefaultButton defaultButton,
MessageBoxOptions options,
HelpInfo helpInfo)
{
// Check if trying to show a message box from a non-interactive process, this is not possible
if (!SystemInformation.UserInteractive && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) == 0))
throw new InvalidOperationException("Cannot show modal dialog when non-interactive");
// Check if trying to show a message box from a service and the owner has been specified, this is not possible
if ((owner != null) && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) != 0))
throw new ArgumentException("Cannot show message box from a service with an owner specified", "options");
// Check if trying to show a message box from a service and help information is specified, this is not possible
if ((helpInfo != null) && ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) != 0))
throw new ArgumentException("Cannot show message box from a service with help specified", "options");
// If help information provided or we are not a service/default desktop application then grab an owner for showing the message box
IWin32Window showOwner = null;
if ((helpInfo != null) || ((options & (MessageBoxOptions.ServiceNotification | MessageBoxOptions.DefaultDesktopOnly)) == 0))
{
// If do not have an owner passed in then get the active window and use that instead
if (owner == null)
showOwner = Control.FromHandle(PI.GetActiveWindow());
else
showOwner = owner;
}
// Show message box window as a modal dialog and then dispose of it afterwards
using (KryptonMessageBox kmb = new KryptonMessageBox(text, caption, buttons, icon, defaultButton, options, helpInfo))
{
if (showOwner == null)
kmb.StartPosition = FormStartPosition.CenterScreen;
else
kmb.StartPosition = FormStartPosition.CenterParent;
return kmb.ShowDialog(showOwner);
}
}
