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NAME
- RethinkVirtualSize
-
Calculate the size of virtual group based on the screen resolution.
SYNOPSIS
RethinkVirtualSize(virtual, rootlayout, font, screen, layoutlimits)
BOOL RethinkVirtualSize(Object *, Object *, struct TextFont *,
A0 A1 A2 A3 D0
struct Screen *, struct LayoutLimits *)
FUNCTION
This function is used to calculate the intial size of a layout group that contains a virtual.gadget (and ONLY one!). Simply call this function BEFORE you open the window:
RethinkVirtualSize(virtual, rootlayout, NULL, screen, &ll);
This ensures that the visible portion of the virtual group will be as large as possible. Next open the window and set the window limits to values that were returned by the function in the LayoutLimits structure you've passed in:
RethinkVirtualSize(virtual, rootlayout, NULL, screen, &ll);
This ensures that the visible portion of the virtual group will be as large as possible. Next open the window and set the window limits to values that were returned by the function in the LayoutLimits structure you've passed in:
WindowLimits( mywin, ll.MinWidth, ll.MinHeight,
Last but not least, set the new minimum size for the virtual.gadget, so that the user can resize the group:
ll.MaxWidth, ll.MaxHeight );
SetAttrs( layoutgroup_containg_virtual,
LAYOUT_ModifyChild, virtual,
CHILD_MinWidth, 64,
CHILD_MinHeight, 48,
TAG_DONE);
CHILD_MinWidth, 64,
CHILD_MinHeight, 48,
TAG_DONE);
INPUTS
- virtual
-
the virtual.gadget.
- rootlayout
-
the root layout.gadget of the window.
- font
-
optional pointer to the font used by the layout. May be NULL.
- screen
-
pointer to the screen where the window will be opened.
- layoutlimits
-
optional pointer holding the actual minimum and maximum dimension of the window.
RESULT
If anything went wrong, this function returns FALSE (out of memory, NULL screen pointer, ...).
BUGS
The function may become obsolete in a later release of ReAction.