Window class

Index	Parent	Window class

The Window class is used to create windows.

Any graphical object must be added to a window to be visible.

Any window must be added to an application object to be opened.

A window is not created if its Contents is not defined.

See Application

ATTRIBUTES
Name	Type	Class	Note
Activate	B	ISGN
ActiveObject	S	S
AltHeight	N	IG	Special values
AltLeftEdge	N	IG	Special values
AltTopEdge	N	IG	Special values
AltWidth	N	IG	Special values
BackDrop	B	I
BorderLess	B	I
CloseGadget	B	I
CloseRequest	B	I
Contents	S	I IND
DefaultObject	S	S
DepthGadget	B	I
DragBar	B	I
Height	N	IG	Special values
ID	S	I
LeftEdge	N	IG	Special values
MenuStrip	S	I
NoMenus	B	IS
Open	B	SGN
PubScreen	S	ISG
RefWindow	S	ISG
ScreenTitle	S	ISG
SizeGadget	B	I
Sleep	B	SGN
Title	S	ISG
TopEdge	N	IG	Special values
UseBottomBorderScroller	B	I
UseLeftBorderScroller	B	I
Width	N	IG	Special values

Special values

AltHeight MinMax(p) 0-p
AltHeight Visible(p) -100-p
AltHeight Screen(p) -200-p
AltHeight Scaled -1000

AltLeftEdge Centered -1
AltLeftEdge Moused -2
AltLeftEdge NoChange -1000
AltTopEdge Centered -1
AltTopEdge Moused -2
AltTopEdge Delta(p) -3-p
AltTopEdge NoChange -1000

AltTopEdge Centered -1
AltTopEdge Moused -2
AltTopEdge Delta(p) -3-p
AltTopEdge NoChange -1000

AltWidth MinMax(p) 0-p
AltWidth Visible(p) -100-p
AltWidth Screen(p) -200-p
AltWidth Scaled -1000

Height MinMax(p) 0-p
Height Visible(p) -100-p
Height Screen(p) -200-p
Height Scaled -1000
Height Default -1001

LeftEdge Centered -1
LeftEdge Moused -2

TopEdge Centered -1
TopEdge Moused -2
TopEdge Delta(p) -3-p

Width MinMax(p) 0-p
Width Visible(p) -100-p
Width Screen(p) -200-p
Width Scaled -1000
Width Default -1001

METHODS
Name	Parameters	Note
LockWindowScreen	<stem/V>	Note
ScreenInfo	<stem/V>,[screen]	Note
ScreenToBack
ScreenToFront
SetCycleChain	{obj}	Note
SnapShot
ToBack
ToFront
UnlockWindowScreen		Note

LockWindowScreen UnlockWindowScreen
When you wants to open a window or whatever on a screen a RxMUI window is using, you must lock that screen, or you will be never sure that screen is opened when needed. LockWindowScreen is used to obtain the name of the screen the window is using and to lock it. This screen is:

The REAL screen the window is opened on, if it is opened.
The DEFAULT public screen, if the window is not opened.

As soon as possible, the screen should be unlock using the method UnlockWindowScreen or strange things may happen. The method (as any other RxMUI one) writes the REAL result from its invocation in the var RC . Just ONE screen may be locked at a time, it means that a double invocation of LockWindowScreen without unlocking will fail (RC=0).
Example:

    call DoMethod("win","LockWindowScreen","S")
    if rc then do
        /* use the screen S here */
        call DoMethod("win","UnlockWindowScreen")
    end
    else do
        /* sorry no screen */
    end

ScreenInfo
Used to obtain screen infos. The method writes in stem the field:

NAME
LEFTEDGE
TOPEDGE
WIDTH
HEIGHT
FLAGS
TITLE
DEFAULTTITLE
BARHEIGHT
BARVBORDER
BARHBORDER
MENUVBORDER
MENUHBORDER
WBORTOP
WBORLEFT
WBORRIGHT
WBORBOTTOM
DETAILPEN
BLOCKPEN
FONT.NAME
FONT.YSIZE
FONT.STYLE
FONT.FLAGS

screen is the name of an opened pubblic screen or one of the following special values:

DEFAULT
THIS

The default is THIS.

SetCycleChain
Sets window cycle chain to max 13 objects. If you have more than 13 objects in your cycle chain, you have to set Area/CycleChain attribute of each. Passing no object, reset the cycle chain.