Webutil - Read Image?

1.While reading image into image item of my canvas
if the image size larger then my image item size
i want it to be scroll both horizontally and vertically.
Is that possible.?
2.I want to give zoom in/out functionality to that image item.
How?
3.Also i want to restrict the user from select file type
other than gif,tif,jpg,jpeg,bmp etc...???

Dear Faheem;
For ur questions No. 1 & 2 if you open the property palette for the image item you search for the categeory[b] faunctional there is a property called[b] Show palette assign it to YES then if you run ur form you will get a control palette for zooming or moving the image.
For Quest. 3 I think you have to use it by coding like this code :
photo_filename := tiff_image_dir||LOWER(:emp.userid)||'.tif';
** For example 'photo_filename' might look like:
** /usr/staff/photos/jgetty.tif
** Now, read in the appropriate image.
READ_IMAGE_FILE(photo_filename, 'TIFF', 'emp.emp_photo');
Hope it help
Regards
Reda El Mitwally

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We are trying one image that dimension is 2900 X 4700 this is not uploading to image item.
but i am able to upload less than 2000 X 2000 dimension to the same image item
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Image Depth : Original
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Regards,
Suresh.V

hi
What about Java Bean????
try the following link i hope it will help u.
http://forms.pjc.bean.over-blog.com/article-7109292.html
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I was having forms version 10.1.2.0.2 and I was using webutil to upload an image and to download it. My problem is sometimes the image files are uploaded and sometimes not => I got "Can't read image file D:\...\image.jpg"
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Edited by: Joe Farah on Feb 26, 2009 11:01 AM

Yes dear, this is the way that we can follow in order to get rid of this problem. Actually we have to mention to all users of my system to save the image file in this tool. But, it's somehow cumbersome for them as they might not have any of the mentioned imaging tool on their systems, isn't it ?
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tiff_image_dir varchar2(80):=('D:\IMAGE\');
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photo_filename:=tiff_image_dir||:IMAGE_NO||'.JPG';
if :image_no is null then
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By default any operating system file extension starts after the dot. So in this case when it says 2 dots it will think there is something wrong.
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                              var photoshop:Namespace = XMPConst.photoshop;
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Hi All,
Question: Can we read image meta data from CS extension code by any way ?
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private function getImageMetadata(jpeg:File):void
                              var meta:XMPMeta = new XMPMeta(jpeg);
                              var packet:XML = meta.serializeToXML();
                              var photoshop:Namespace = XMPConst.photoshop;
                              var value:String = meta.photoshop::AuthorsPosition;
If I was able to convert jpeg file to Byte Array, I my guess to be work but I'm not able to find it workable.
Can someone help me to complete the task?
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Mac

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Is there any way to read image raw data into an array from a file but not creating an image ? I looked through ImageIO. It seems that every time an image reader is called , a bufferediamge is created or reused ?
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Hello,
Found this on Metalink:
Problem Description
You are trying to use READ_IMAGE_FILE in forms to read a JPG image,
but you receive the following error:
FRM-47100: Cannot read image file <file name>
You checked the following:
o You are able to open the image file from Netscape or Internet Explorer and
see your image correctly.
o You are also sure that the file exists under the location mentioned in the
first parameter to READ_IMAGE_FILE built-in.
o You tried other JPG files that are located in the demo directory of the
Developer home and you can see the image loaded in the image item.
Solution Description
There are many JPEG formats. The only JPEG format supported in Forms is the
JPEG File Interchange Format (JFIF) which is the baseline sequential DCT JPEG.
Progressive JPEG (as well as Lossless JPEG and Hierarchical JPEG),
are not currently supported.
Possibly your image file is stored using one of the non-supported formats.
As a workaround, you can convert progressive JPEG format to and from baseline
JPEG. There is a free set of programs provided by the Independent JPEG Group
that allows this.
The Independent JPEG Group home page is: http://www.ijg.org/
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On metalink, a note was giving an exemple that was doing that... but it doesn't work when I try it....
Doc ID:      Note:121909.1
Subject:      How to Open a File with its Associated Program from Forms ?
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PROCEDURE P_TEST IS
lv_valeur_retour1 VARCHAR2(255);
BEGIN
BEGIN
-- this works fine
lv_valeur_retour1 :=
CLIENT_WIN_API_ENVIRONMENT.READ_REGISTRY
('HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows',
'Device',
TRUE);
message(lv_valeur_retour1);
pause;
EXCEPTION
WHEN NO_DATA_FOUND THEN
:F_RETOUR := '10';
END;
pause;
BEGIN
-- this doesn't work
lv_valeur_retour1 :=
CLIENT_WIN_API_ENVIRONMENT.READ_REGISTRY
('HKEY_CLASSES_ROOT\' || '.doc',
NULL,
TRUE);
message(lv_valeur_retour1);
pause;
EXCEPTION
WHEN NO_DATA_FOUND THEN
:F_RETOUR := '11';
END;
pause;
BEGIN
-- this doesn't work
lv_valeur_retour1 :=
CLIENT_WIN_API_ENVIRONMENT.READ_REGISTRY
('HKEY_CLASSES_ROOT\' || '.doc',
'Default',
TRUE);
message(lv_valeur_retour1);
pause;
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WHEN NO_DATA_FOUND THEN
:F_RETOUR := '12';
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pause;
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('HKEY_CLASSES_ROOT\' || '.doc',
'(Default)',
TRUE);
message(lv_valeur_retour1);
pause;
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WHEN NO_DATA_FOUND THEN
:F_RETOUR := '15';
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lv_valeur_retour1 :=
CLIENT_WIN_API_ENVIRONMENT.READ_REGISTRY
('HKEY_CLASSES_ROOT\' || '.doc',
'0',
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message(lv_valeur_retour1);
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lv_valeur_retour1 :=
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('HKEY_CLASSES_ROOT',
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I had to customize the webutil.pll to get this to work. I modified the WEBUTIL_C_API.ADD_PARAMETER_WU function so it did not always consume null string parameters. The change follows.
FUNCTION ADD_PARAMETER_WU (paramList IN ParameterList, parameterType IN PLS_INTEGER,
inOut IN PLS_INTEGER, str IN VARCHAR2, strmaxlen IN PLS_INTEGER) RETURN ParameterHandle IS
paramHnd ParameterHandle;
BEGIN
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          || '',false);
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WebUtil_Core.Error(15,WebUtil_Core.getImplClass(WebUtil_Core.WUF_PACKAGE));
RAISE FORM_TRIGGER_FAILURE;
when WebUtil_Core.PROPERTY_ERROR then
RAISE FORM_TRIGGER_FAILURE;
END ADD_PARAMETER_WU;
Here is an example call to get the default registry entry:
reg_val := CLIENT_WIN_API_ENVIRONMENT.READ_REGISTRY('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\IEXPLORE.EXE','mjpNULLmjp',FALSE);

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Webutil - Read Image?

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