MiddleMouseDown

void MiddleMouseDown(string control)

Description
Simulates pressing and holding the middle mouse button (mouse wheel button) over a control.
Does not release until MiddleMouseUp is called.

Parameters
- control - Identifier of the UI control.

Returns
- none

Example
void main()
{
    MiddleMouseDown("MAP_CANVAS");
    // ... drag view
    MiddleMouseUp("MAP_CANVAS");
}