Member variable XbpDialog():gridMove Foundation
Restricts the movement of the window to increments of :fontWidth when the mouse is used to move the window.
By default, the instance variable :gridMove contains the value .F. (false). This allows the XbpDialog window to be shifted by very small increments using the mouse. This can cause a delayed screen display with some graphics cards. In this case, the instance variable can be set to .T. (true). If :gridMove is set to .T., the XbpDialog window can only be moved in increments preset by the operating system. This results in faster screen display during window movements.
This instance variable is ignored under Windows.
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