How to create and display a message in reaction?

10 posts / 0 new
Log in or register to post comments
Last post
Thu, 2013-12-05 12:03
#1
AmigaBlitter
AmigaBlitter's picture
Offline
Last seen: 5 years 1 month ago
Joined: 2012-02-18 19:55
How to create and display a message in reaction?
As in the subject, how to create and display a message in reaction? Is there something like MessageBox("Title Box, please choose yes or no", yesno);
Top
Thu, 2013-12-05 14:15
salass00
salass00's picture
Offline
Last seen: 1 month 3 weeks ago
Joined: 2011-02-03 11:27
From UQM port
From UQM port (src/libs/port/msgbox_amigaos4.c): 
  1. void log_displayBox (const char *title, int isError, const char *msg)
  2. {
  3.     struct ClassLibrary *RequesterBase;
  4.     Class *RequesterClass;
  5.     RequesterBase = IIntuition->OpenClass("requester.class", 53, &RequesterClass);
  6.     if (RequesterBase != NULL) {
  7.         Object *requester;
  8.         requester = IIntuition->NewObject(RequesterClass, NULL,
  9.             REQ_TitleText,  title,
  10.             REQ_BodyText,   msg,
  11.             REQ_GadgetText, "_Ok",
  12.             REQ_Image,      isError ? REQIMAGE_ERROR : REQIMAGE_INFO,
  13.             TAG_END);
  14.         if (requester != NULL) {
  15.             IIntuition->IDoMethod(requester, RM_OPENREQ, NULL, NULL, NULL);
  16.             IIntuition->DisposeObject(requester);
  17.         }
  18.         IIntuition->CloseClass(RequesterBase);
  19.     }
  20. }
For more information see "SDK:Documentation/AutoDocs/requester_cl.doc".
Top
Thu, 2013-12-05 15:16
(Reply to #2)
AmigaBlitter
AmigaBlitter's picture
Offline
Last seen: 5 years 1 month ago
Joined: 2012-02-18 19:55
Thank you for the info. I
Thank you for the info. I tought that requester class was used for system request dialog only, such Open/Close/Save file and for displaying alerts. What's UQM, btw?
Top
Thu, 2013-12-05 15:28
(Reply to #3)
salass00
salass00's picture
Offline
Last seen: 1 month 3 weeks ago
Joined: 2011-02-03 11:27
What's UQM,
What's UQM, btw?
http://sc2.sf.net/
Top
Fri, 2013-12-06 18:26
(Reply to #4)
AmigaBlitter
AmigaBlitter's picture
Offline
Last seen: 5 years 1 month ago
Joined: 2012-02-18 19:55
The message box sample works.
The message box sample works. The only problem is that the message box is dyplayed behind the custom scrreen i've opened. How to display on top of my screen? Thank you
Top
Fri, 2013-12-06 18:48
(Reply to #5)
trixie
trixie's picture
Offline
Last seen: 1 week 1 day ago
Joined: 2011-02-03 13:58
@AmigaBlitter You need to
@AmigaBlitter You need to change the messagebox function to take a screen pointer as parameter, and then use the pointer in the opening method call: 
  1. void log_displayBox (const char *title, int isError, const char *msg, struct Screen *scr)
  2. {
  3.  
  4.  ...
  5.  
  6.  IIntuition->IDoMethod(requester, RM_OPENREQ, NULL, scr, NULL);
  7.  
  8.  ...
  9.  
  10. }
AmigaOne X5000-020 / 2GB RAM / Sapphire Pulse Radeon RX 560 / AmigaOS 4.1 Final Edition Update 2
Top
Fri, 2013-12-06 18:58
(Reply to #6)
salass00
salass00's picture
Offline
Last seen: 1 month 3 weeks ago
Joined: 2011-02-03 11:27
@trixie The screen parameter
@trixie The screen parameter is the last one so it should be: IIntuition->IDoMethod(requester, RM_OPENREQ, NULL, NULL, scr); @AmigaBlitter Format of RM_OPENREQ message is (from classes/requester.h): 
  1. struct orRequest
  2. {
  3.     ULONG           MethodID;  /* RM_OPENREQ */
  4.     struct TagItem *or_Attrs;  /* List of tag attributes */
  5.     struct Window  *or_Window; /* Reference window for requester. */
  6.     struct Screen  *or_Screen; /* Reference screen for requester.
  7.                                 * REQUIRED if or_Window is
  8.                                 * not supplied
  9.                                 */
  10. };
To specify which screen the requester should open on you can either specify an intuition window pointer (opens on the same screen as the window) or a screen pointer directly. If both of these are NULL then the default public screen will be used (usually the WB screen).
Top
Fri, 2013-12-06 20:18
(Reply to #7)
trixie
trixie's picture
Offline
Last seen: 1 week 1 day ago
Joined: 2011-02-03 13:58
@salass You're right. I got
@salass You're right. I got fooled by the requester class autodoc, which says
reqmsg.MethodID = RM_OPENREQ; reqmsg.or_Window = NULL; reqmsg.or_Screen = myScreenPtr; reqmsg.or_Attrs = tags;
so I assumed this is the same order of parameters as in the OPENREQ message. Perhaps it should be changed in the autodoc to avoid confusion?
AmigaOne X5000-020 / 2GB RAM / Sapphire Pulse Radeon RX 560 / AmigaOS 4.1 Final Edition Update 2
Top
Sat, 2013-12-07 20:47
(Reply to #8)
AmigaBlitter
AmigaBlitter's picture
Offline
Last seen: 5 years 1 month ago
Joined: 2012-02-18 19:55
@sallass00 & Trixie Thank
@sallass00 & Trixie Thank you. It works now! @trixie
Perhaps it should be changed in the autodoc to avoid confusion?
Yeah! Get a newbie like me: Autodocs say §":}{¶, wiki say :{}{":", newmethods, old methods :**éç macros: °PO°POoèpèo.....
Top
Tue, 2013-12-10 13:01
(Reply to #9)
salass00
salass00's picture
Offline
Last seen: 1 month 3 weeks ago
Joined: 2011-02-03 11:27
Perhaps it should be changed
Perhaps it should be changed in the autodoc to avoid confusion?
Done.
Top
Log in or register to post comments