[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / man / man3 / Tk_ImageChanged.3

'\"
'\" Copyright (c) 1994 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
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'\" RCS: @(#) $Id: ImgChanged.3,v 1.2 1998/09/14 18:22:52 stanton Exp $
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'\" The definitions below are for supplemental macros used in Tcl/Tk
'\" manual entries.
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'\"	needed;  use .AS below instead)
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'\" .AS ?type? ?name?
'\"	Give maximum sizes of arguments for setting tab stops.  Type and
'\"	name are examples of largest possible arguments that will be passed
'\"	to .AP later.  If args are omitted, default tab stops are used.
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'\" .OP cmdName dbName dbClass
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'\"	option's name as specified in the class command, dbName gives
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'\"	the option's class in the option database.
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.TH Tk_ImageChanged 3 4.0 Tk "Tk Library Procedures"
.BS
.SH NAME
Tk_ImageChanged \- notify widgets that image needs to be redrawn
.SH SYNOPSIS
.nf
\fB#include <tk.h>\fR
.sp
\fBTk_ImageChanged\fR(\fIimageMaster, x, y, width, height, imageWidth, imageHeight\fR)
.SH ARGUMENTS
.AS Tk_ImageMaster imageHeight
.AP Tk_ImageMaster imageMaster in
Token for image, which was passed to image's \fIcreateProc\fR when
the image was created.
.AP int x in
X-coordinate of upper-left corner of region that needs redisplay (measured
from upper-left corner of image).
.AP int y in
Y-coordinate of upper-left corner of region that needs redisplay (measured
from upper-left corner of image).
.AP "int" width in
Width of region that needs to be redrawn, in pixels.
.AP "int" height in
Height of region that needs to be redrawn, in pixels.
.AP "int" imageWidth in
Current width of image, in pixels.
.AP "int" imageHeight in
Current height of image, in pixels.
.BE

.SH DESCRIPTION
.PP
An image manager calls \fBTk_ImageChanged\fR for an image
whenever anything happens that requires the image to be redrawn.
As a result of calling \fBTk_ImageChanged\fR, any widgets using
the image are notified so that they can redisplay themselves
appropriately.
The \fIimageMaster\fR argument identifies the image, and
\fIx\fR, \fIy\fR, \fIwidth\fR, and \fIheight\fR
specify a rectangular region within the image that needs to
be redrawn.
\fIimageWidth\fR and \fIimageHeight\fR specify the image's (new) size.
.PP
An image manager should call \fBTk_ImageChanged\fR during
its \fIcreateProc\fR to specify the image's initial size and to
force redisplay if there are existing instances for the image.
If any of the pixel values in the image should change later on,
\fBTk_ImageChanged\fR should be called again with \fIx\fR, \fIy\fR,
\fIwidth\fR, and \fIheight\fR values that cover all the pixels
that changed.
If the size of the image should change, then \fBTk_ImageChanged\fR
must be called to indicate the new size, even if no pixels
need to be redisplayed.

.SH "SEE ALSO"
Tk_CreateImageType

.SH KEYWORDS
images, redisplay, image size changes
Commit	Line	Data
920dae64 AT	1	'\"
	2	'\" Copyright (c) 1994 The Regents of the University of California.
	3	'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
	4	'\"
	5	'\" See the file "license.terms" for information on usage and redistribution
	6	'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
	7	'\"
	8	'\" RCS: @(#) $Id: ImgChanged.3,v 1.2 1998/09/14 18:22:52 stanton Exp $
	9	'\"
	10	'\" The definitions below are for supplemental macros used in Tcl/Tk
	11	'\" manual entries.
	12	'\"
	13	'\" .AP type name in/out ?indent?
	14	'\" Start paragraph describing an argument to a library procedure.
	15	'\" type is type of argument (int, etc.), in/out is either "in", "out",
	16	'\" or "in/out" to describe whether procedure reads or modifies arg,
	17	'\" and indent is equivalent to second arg of .IP (shouldn't ever be
	18	'\" needed; use .AS below instead)
	19	'\"
	20	'\" .AS ?type? ?name?
	21	'\" Give maximum sizes of arguments for setting tab stops. Type and
	22	'\" name are examples of largest possible arguments that will be passed
	23	'\" to .AP later. If args are omitted, default tab stops are used.
	24	'\"
	25	'\" .BS
	26	'\" Start box enclosure. From here until next .BE, everything will be
	27	'\" enclosed in one large box.
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	32	'\" .CS
	33	'\" Begin code excerpt.
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	38	'\" .VS ?version? ?br?
	39	'\" Begin vertical sidebar, for use in marking newly-changed parts
	40	'\" of man pages. The first argument is ignored and used for recording
	41	'\" the version when the .VS was added, so that the sidebars can be
	42	'\" found and removed when they reach a certain age. If another argument
	43	'\" is present, then a line break is forced before starting the sidebar.
	44	'\"
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	46	'\" End of vertical sidebar.
	47	'\"
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	52	'\" End of indented unfilled display.
	53	'\"
	54	'\" .SO
	55	'\" Start of list of standard options for a Tk widget. The
	56	'\" options follow on successive lines, in four columns separated
	57	'\" by tabs.
	58	'\"
	59	'\" .SE
	60	'\" End of list of standard options for a Tk widget.
	61	'\"
	62	'\" .OP cmdName dbName dbClass
	63	'\" Start of description of a specific option. cmdName gives the
	64	'\" option's name as specified in the class command, dbName gives
65	'\" the option's name in the option database, and dbClass gives
66	'\" the option's class in the option database.
67	'\"
68	'\" .UL arg1 arg2
69	'\" Print arg1 underlined, then print arg2 normally.
70	'\"
71	'\" RCS: @(#) $Id: man.macros,v 1.4 2000/08/25 06:18:32 ericm Exp $
72	'\"
73	'\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
74	.if t .wh -1.3i ^B
75	.nr ^l \n(.l
76	.ad b
77	'\" # Start an argument description
78	.de AP
79	.ie !"\\$4"" .TP \\$4
80	.el \{\
81	. ie !"\\$2"" .TP \\n()Cu
82	. el .TP 15
83	.\}
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107	..
108	.AS Tcl_Interp Tcl_CreateInterp in/out
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132	.\}
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134	\h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'\|0u-1.5n\(ul'
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177	.el \h'-1.5n'\L'\|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'\|0u'\c
178	.\}
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207	.de SO
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219	See the \\fBoptions\\fR manual entry for details on the standard options.
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228	Database Class: \\fB\\$3\\fR
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243	.de UL
244	\\$1\l'\|0\(ul'\\$2
245	..
246	.TH Tk_ImageChanged 3 4.0 Tk "Tk Library Procedures"
247	.BS
248	.SH NAME
249	Tk_ImageChanged \- notify widgets that image needs to be redrawn
250	.SH SYNOPSIS
251	.nf
252	\fB#include <tk.h>\fR
253	.sp
254	\fBTk_ImageChanged\fR(\fIimageMaster, x, y, width, height, imageWidth, imageHeight\fR)
255	.SH ARGUMENTS
256	.AS Tk_ImageMaster imageHeight
257	.AP Tk_ImageMaster imageMaster in
258	Token for image, which was passed to image's \fIcreateProc\fR when
259	the image was created.
260	.AP int x in
261	X-coordinate of upper-left corner of region that needs redisplay (measured
262	from upper-left corner of image).
263	.AP int y in
264	Y-coordinate of upper-left corner of region that needs redisplay (measured
265	from upper-left corner of image).
266	.AP "int" width in
267	Width of region that needs to be redrawn, in pixels.
268	.AP "int" height in
269	Height of region that needs to be redrawn, in pixels.
270	.AP "int" imageWidth in
271	Current width of image, in pixels.
272	.AP "int" imageHeight in
273	Current height of image, in pixels.
274	.BE
275
276	.SH DESCRIPTION
277	.PP
278	An image manager calls \fBTk_ImageChanged\fR for an image
279	whenever anything happens that requires the image to be redrawn.
280	As a result of calling \fBTk_ImageChanged\fR, any widgets using
281	the image are notified so that they can redisplay themselves
282	appropriately.
283	The \fIimageMaster\fR argument identifies the image, and
284	\fIx\fR, \fIy\fR, \fIwidth\fR, and \fIheight\fR
285	specify a rectangular region within the image that needs to
286	be redrawn.
287	\fIimageWidth\fR and \fIimageHeight\fR specify the image's (new) size.
288	.PP
289	An image manager should call \fBTk_ImageChanged\fR during
290	its \fIcreateProc\fR to specify the image's initial size and to
291	force redisplay if there are existing instances for the image.
292	If any of the pixel values in the image should change later on,
293	\fBTk_ImageChanged\fR should be called again with \fIx\fR, \fIy\fR,
294	\fIwidth\fR, and \fIheight\fR values that cover all the pixels
295	that changed.
296	If the size of the image should change, then \fBTk_ImageChanged\fR
297	must be called to indicate the new size, even if no pixels
298	need to be redisplayed.
299
300	.SH "SEE ALSO"
301	Tk_CreateImageType
302
303	.SH KEYWORDS
304	images, redisplay, image size changes