get total width of all controls

[willseward]

I am trying to get an array of all the controls on a toolstrip then test all of the controls to see if it is a toolstripbutton. if it is then I will add the width of the control to a variable. Here is My code...

System::Array<System::Object>^ os;

this->toolStrip1->Controls->CopyTo(os, 0);

int totalWidth = 0;
				
for (int i = -; i < os->Length; i++)
{
	if (os[i]->GetType() == System::Windows::Forms::ToolStripButton)
	{
		System::Windows::Forms::ToolStripButton t = os[i];

		totalWidth += t.Size.Width;
	}
}
				
		
this->toolStripTextBox1->Size = System::Drawing::Size(this->toolStrip1->Size.Width - (totalWidth + 15), this->toolStripTextBox1->Size.Height);

I can't figure out how to convert the array item into a System::Object so that it can be compared to the ToolStripButtonclass. any Ideas?