Show/Hide window problems

[Wynd]

This code I wrote will hide or show windows that have a one-word title (such as the Run dialog), but it stops responding until I press Ctrl+C if I try to do a window with more than one word("My Documents"). Why is this happening? Here is the code:

#include <windows.h>
#include <iostream.h>

int main()
{
	char* winName = new char;
	cout<<"Type in the window name:"<<endl;
	cin>>winName;
	HWND h = FindWindow(NULL, winName);
	if (h == NULL)
		MessageBox(NULL, "Could not find window", "Error", MB_OK | MB_ICONERROR);
	else
	{
		if (ShowWindow(h, SW_HIDE) == 0) // window was hidden, show it
			ShowWindow(h, 1);
		else //window was visible, hide it
			ShowWindow(h, 0);
	}
	return 0;
}