cWindowName

Specifies the name of the window or form whose mouse-pointer column position MCOL(В ) returns.

0

Specifies that the column position of the mouse pointer is returned for the currently active window or form.

nScaleMode

Specifies the unit of measurement for the value MCOL(В ) returns. The following table lists the settings for nScaleMode.

nScaleMode	Description
0	Foxels. A foxel is equivalent to the average height and width of a character based on the current font of the form in which an object is contained. (Default)
3	Pixels. A pixel is the smallest element that can be displayed on a screen or printer. Pixels are screen-dependent.

Numeric. MCOL(В ) returns the column position of the mouse pointer in the main Visual FoxPro window, user-defined window, or form.

If you omit cWindowName, and there is no active user-defined window or form, MCOL( ) returns the mouse pointer's column position in the main Visual FoxPro window. If you omit cWindowName, and there is an active user-defined window or form, MCOL( ) returns the mouse pointer's column position in the active user-defined window or form. MCOL() returns –1 if the mouse pointer is positioned outside the user-defined window or form, if no mouse driver is loaded, or there is no output window.

Using the MCOL(В ) function without the optional argument 0 may affect the behavior of code on forms when the FormВ AllowOutput property IS set to false (.F.). For example, the placement of a shortcut menu that is defined in the RightClick event may not display in the proper location if you use the MCOL(В ) and MROW(В ) functions to determine where the menu is displayed. In this case, be sure to include 0 in the MCOL(В ) and MROW(В ) functions.