Compaq DEC Text Processing Utility AA-PWCBD-TE Manual do Utilizador Página 107
- Página / 152
- Índice
- MARCADORES
Avaliado. / 5. Com base em avaliações de clientes
DEC Text Processing Utility Program Development
5.2 Programming in DECwindows DECTPU
5.2.3.4 Response to Requests for Information About the Global Selection
DECTPU provides a three-level hierarchy for responding to requests from another
application for information about the current selection. Applications layered on
DECTPU may specify a routine that responds to requests for information about
global selections either for the entire application or for one or more buffers in the
application.
When DECTPU receives a request for information, it checks whether there is a
routine for the current buffer that responds to information about global selections.
If no buffer-specific routine is available, DECTPU checks for an application-
wide routine. If no application-wide routine is available, DECTPU can provide
information only about the primary selection, the file name, font, line number,
and text.
DECTPU responds to all other requests with a message that no information
is available. DECTPU does not send requests for information about the global
selection to other DECwindows applications. DECTPU applications may use the
various built-in procedures to do so.
DECTPU’s responses to requests for information about the primary selection are
as follows:
"FILE_NAME" DECTPU responds with the string returned by the GET_INFO
(CURRENT_BUFFER, "file_name") built-in procedure.
"FONT" DECTPU responds with the string returned by the GET_INFO
(SYSTEM, "default_font") built-in procedure.
"LINE_NUMBER" DECTPU responds with the value of type span containing the
record number where the select range starts and the record
number where the select range ends.
"TEXT" or "STRING" DECTPU responds with the text of the select range as a string,
with each line break represented by a line feed.
Compaq recommends that you use only a DECwindows section file with
DECwindows DECTPU. However, if you do not follow this recommendation,
DECTPU’s automatic grabbing of the primary global selection enables your
layered application to interact with other DECwindows applications.
If an application requests information about the primary global selection while
DECTPU owns the selection, DECTPU attempts to respond to the request if
the application cannot do so. If DECTPU responds to the request by sending
the text of a buffer or range, DECTPU converts the buffer or range to a string,
converts line breaks to line feeds, and inserts padding blanks before text to
fill any unoccupied space between the margins. If neither the application nor
DECTPU can respond to the request, DECTPU informs DECwindows that the
requested information is not available.
DECTPU does not automatically grab the secondary selection. Layered
applications are responsible for handling this selection.
5.2.4 Using Callbacks
This section presents background information on the DECwindows concept of
callbacks and explains how DECwindows DECTPU implements this concept.
DEC Text Processing Utility Program Development 5–7
- Guide to the DEC Text 1
- ProcessingUtility 1
- Contents 3
- A Sample DECTPU Procedures 7
- B DECTPU Terminal Support 7
- C DECTPU Debugger Commands 7
- Examples 7
- Intended Audience 9
- Document Structure 9
- Related Documents 9
- Reader’s Comments 9
- Conventions 10
- Monospace text 11
- 1.1 Description of DECTPU 13
- 1.1.3 DECTPU Environments 14
- 1.3 Description of EVE 16
- 1.4 DECTPU Language 17
- 1.4.5 User-Written Procedures 19
- 1.6 Learning Path for DECTPU 20
- Getting Started with DECTPU 21
- 2.1.2 Startup Files 22
- 2.4 Using Journal Files 26
- 2.4.1 Keystroke Journaling 27
- 2.6.1 /CHARACTER_SET 29
- 2.6.2 /COMMAND 30
- 2.6.3 /CREATE 31
- 2.6.4 /DEBUG 32
- 2.6.5 /DISPLAY 32
- 2.6.6 /INITIALIZATION 33
- 2.6.7 /INTERFACE 34
- 2.6.8 /JOURNAL 34
- 2.6.9 /MODIFY 35
- 2.6.10 /OUTPUT 36
- 2.6.11 /READ_ONLY 37
- 2.6.12 /RECOVER 38
- 2.6.13 /SECTION 39
- 2.6.14 /START_POSITION 40
- 3.1 Array Data Type 42
- 3.2 Buffer Data Type 43
- 3.3 Integer Data Type 44
- 3.4 Keyword Data Type 45
- 3.5 Learn Data Type 47
- 3.6 Marker Data Type 48
- 3.7 Pattern Data Type 50
- 3.7.3 Using Pattern Operators 53
- 3.7.5 Searching for a Pattern 56
- 3.7.6 Anchoring a Pattern 57
- 3.8 Process Data Type 58
- 3.9 Program Data Type 58
- 3.10 Range Data Type 59
- 3.11 String Data Type 60
- 3.12 Unspecified Data Type 61
- 3.13 Widget Data Type 62
- 3.14 Window Data Type 62
- 3.14.2 Creating Windows 63
- 3.14.4 Mapping Windows 64
- 3.14.5 Removing Windows 65
- Utility Language 67
- 4.3 Character Sets 68
- 4.3.3 General Character Sets 69
- 4.3.5 DECTPU Symbols 70
- 4.4 Identifiers 71
- 4.5 Variables 71
- 4.6 Constants 72
- 4.7 Operators 73
- 4.8 Expressions 74
- 4.8.1 Arithmetic Expressions 76
- 4.8.2 Relational Expressions 76
- 4.8.3 Pattern Expressions 77
- 4.8.4 Boolean Expressions 77
- 4.9 Reserved Words 78
- 4.10 Lexical Keywords 100
- Development 101
- 5.1 Creating DECTPU Programs 102
- 5.1.1 Simple Programs 102
- 5.1.2 Complex Programs 102
- 5.1.3 Program Syntax 103
- 5.2.1 Widget Support 104
- 5.2.2 Input Focus Support 105
- "AUXILIARY" 106
- 5.2.4 Using Callbacks 107
- 5.2.5 Using Closures 110
- 5.4 Compiling DECTPU Programs 114
- 5.5 Executing DECTPU Programs 115
- 5.5.1 Procedure Execution 116
- 5.5.2 Process Suspension 116
- 5.6.1 Section Files 117
- 5.6.2 Command Files 117
- 5.6.3 Initialization Files 118
- 5.6.5 Using Section Files 119
- 5.6.6 Using Command Files 124
- 5.7 Debugging DECTPU Programs 128
- 5.8 Handling Errors 130
- Sample DECTPU Procedures 131
- A.1 Line-Mode Editor 132
- DECTPU Terminal Support 139
- B.3 Using Terminal Wrap 141
- DECTPU Debugger Commands 143
Manuais e produtos relacionados com Acessórios para Computador Compaq DEC Text Processing Utility AA-PWCBD-TE
(8 páginas)Aiphone YAW-R manuály
Uživatelské manuály a uživatelské příručky pro ne Aiphone YAW-R.
Poskytujeme 1 manuály pdf Aiphone YAW-R ke stažení zdarma podle typů dokumentů: Uživatelský manuál
Comentários a estes Manuais