The maximum value of a scrollbar can only be reached programmatically. The value of a scroll bar cannot reach its maximum value through user interaction at run time. The maximum value that can be reached through user interaction is equal to 1 plus the Maximum property value minus the LargeChange property value. If necessary, you can set the Maximum property to the size of the object -1 to account for the term of 1.
When you need to pass sender and e to the function (e.g. a form control event)
frmMain_Load(this, gcnew EventArgs()); //or this EventArgs ^MyArgs = gcnew EventArgs(); frmMain_Load(this, MyArgs);
Or you could do this if you wanted to specify a different object for some reason:
Object ^MySender = gcnew Object(); EventArgs ^MyArgs = gcnew EventArgs(); frmMain_Load(MySender, MyArgs);