pdf viewer c# : How to add image to pdf in preview control Library platform web page .net azure web browser OReilly_-_POSIX_Programmers_Guide0-part1941

P
age iii
POSIX Programmer's Guide 
Writing Portable UNIX Programs with the POSIX.1 Standard
Donald A. Lewine
Data General Corporation
O'Reilly & Associates, Inc
103 Morris Street, Suite A
Sebastopol, CA 95472
P
age iv
POSIX Programmer's Guide
by Donald A. Lewine
Editor: Dale Dougherty
Copyright © 1991 O'Reilly & Associates, Inc.
All rights reserved
Printed in the United States of America
Printing History
April 1991:
First edition
December 1991:
Minor corrections. Appendix G added.
July 1992:
Minor corrections.
November 1992:
Minor corrections.
March 1994:
Minor corrections and updates.
How to add image to pdf in preview - insert images into PDF in C#.net, ASP.NET, MVC, Ajax, WinForms, WPF
Sample C# code to add image, picture, logo or digital photo into PDF document page using PDF page editor control
adding a jpg to a pdf; how to add picture to pdf
How to add image to pdf in preview - VB.NET PDF insert image library: insert images into PDF in vb.net, ASP.NET, MVC, Ajax, WinForms, WPF
Guide VB.NET Programmers How to Add Images in PDF Document
how to add jpg to pdf file; adding image to pdf file
NOTICE
Portions of this text have been reprinted from IEEE Std 1003.1-1988, IEEE Standard Portable
Operating System for Computer Environments, copyright © 1988 by the Institute of Electrical
and Electronics Engineers, Inc., and IEEE Std 1003.1-1990, Inform
ation
Technology—Portable Operating System Interface (POSIX)—Part 1: System Application
Program Interface (API) [C Language], copyright © 1990 by the Institute of Electrical and
Electronics Engineers, Inc., with the permission of the IEEE Standards Departm
ent.
Nutshell Handbook and the Nutshell Handbook logo are registered trademarks of O'Reilly &
Associates, Inc. Many of the designations used by manufacturers and sellers to distinguish their
products are claimed as trademarks. Where those designations appear in
this book, and
O'Reilly and Associates, Inc. was aware of a trademark claim, the designations have been
printed in caps or initial caps. 
While every precaution has been taken in the preparation of this book, the publisher assumes no
responsibility for errors or omissions, or for damages resulting from the use of the information
contained herein.
Please address comments and questions in care of the publisher:
O'Reilly & Associates, Inc.
INTERNET: letters@ora.com
103 Morris Street, Suite A
Sebastopol, CA 9547
(800) 998-9938
[8/98]
ISBN: 0-937175-73-0
P
age v
To all my students
To my wife, Susan, 
who convinced me to do this 
book and who put up with 
all the time this effort took
P
age vi
Acknowledgments
I would like to thank all of my students who put up with all of the beta test quality revisions.
They provided many useful suggestions.
C# WinForms Viewer: Load, View, Convert, Annotate and Edit PDF
Convert PDF to Tiff image (.tif, .tiff). • Convert PDF to HTML (.htm, .html). PDF Annotation. • Add sticky notes to PDF document in preview.
how to add an image to a pdf file in acrobat; add picture to pdf document
C# WPF Viewer: Load, View, Convert, Annotate and Edit PDF
PDF to Tiff image (.tif, .tiff). • Convert PDF to HTML (.htm, .html). PDF Annotation. • Add sticky notes to PDF document. • Highlight PDF text in preview.
add image to pdf file; add jpg to pdf online
I would like to thank some people who provided very complete technical reviews and
provided useful comments: Hal Jespersen (Posix Software Group), Chuck Karish (Mindcraft,
Inc.), Thomas Mitas (HBO & Company), Neil Todd (European UNIX Systems User Group),
A
ndy Huber (Data General Corporation), Richard Eckhouse (University of Massachusetts),
Andy Silverman (88open Consortium), Henry Spencer (University of Toronto), Jeffrey S.
Haemer (Interactive Systems Corporation), Paul Rabin, Dave Kirschen, and Michael Mei
ssner
(Open Software Foundation), and John S. Quarterman (Texas Internet Consulting).
Thanks go to the following readers of previous printings who pointed out errors and typos:
Eric Boweles, Eric Hanchrow, Milt Ratcliff, Stephen J. Friedl, Ed Myer, Chesley Reyburn.
Derek M. Jones, Todd Stevenson, Bob Burchfield, Anthony Scian, and Wayne Pal
lock
Thanks to Allen Gray for his help with the reference material. Thanks to Mike Sierra and Ellie
Cutler of O'Reilly & Associates for doing the production work and for writing the index.
Special thanks to Dale Dougherty for a great job of editing. His many us
eful suggestions were
worth the months they took to implement.
Thanks to the POSIX standards committees for making this book possible.
P
age vii
Table of Contents
Preface
xxiii
The POSIX Standard Documents
xxiv
Guide to POSIX for Programmers
xxv
Programming Guide
xxv
Reference Guide and Appendixes
xxvi
Assumptions
xxvi
Conventions
xxvii
Chapter 1 Introduction to POSIX and Portability
1
Who is Backing POSIX?
2
The PO
SIX Family of Standards
3
The POSIX.1 Standard Document
5
The Design of POSIX
7
POSIX and UNIX
7
How to C#: Preview Document Content Using XDoc.Word
C# DLLs for Word File Preview. Add references: Get Preview From File. You may get document preview image from an existing Word file in C#.net.
add signature image to pdf; add a picture to a pdf
How to C#: Preview Document Content Using XDoc.PowerPoint
Add necessary XDoc.PowerPoint DLL libraries into your created C# application as You may get document preview image from an existing PowerPoint file in C#.net.
add jpg to pdf file; how to add image to pdf form
POSIX and Non-UNIX Operating Systems
8
POSIX, C, ANSI C, and Standard C
8
Why Standard C?
9
Working Outside the Standards
10
Finding The POSIX Libraries
11
Con
verting Existing Programs
11
P
age viii
Chapter 2  Developing POSIX Applications
13
The POSIX Development Environment
13
The Standard C Compiler
13
POSIX and C Libraries
14
Converting Existing Programs
15
A Porting Example
16
An Alternate Approach
19
Standard Header Files
20
Template for a POSIX
Application
24
/* Feature test switches */
25
/* System headers */
25
/* Local headers */
25
/* Macros */
25
/* File scope variables */
25
/* External variables */
26
/* External functions */
26
/* Structures and unions */
26
/* Signal catching functions 
*/
26
VB.NET PDF File Compress Library: Compress reduce PDF size in vb.
enables compressing and decompressing in preview in ASP.NET to reduce or minimize original PDF document size Reduce image resources: Since images are usually or
how to add image to pdf document; add picture to pdf file
How to C#: Preview Document Content Using XDoc.excel
Add necessary references: RasterEdge.Imaging.Basic.dll. Get Preview From File. You may get document preview image from an existing Excel file in C#.net.
add image to pdf preview; add picture to pdf online
/* Functions */
26
/* Main */
26
Sample Program
26
Portability Lab
38
Chapter 3  Standard File and Terminal I/O
39
Libraries and System Calls
39
Standard Files
39
Formatted Output
40
Examples
41
Pitfalls
42
The vfprintf(), vprintf(), and vsprintf() F
unctions
43
Character Output Functions
45
The fputs() and puts() Functions
45
The fputc(), putc(), and putchar() Functions
45
Reading Lines of Input
45
Pitfalls
47
Additional Pitfall
47
P
age ix
Other Character Input Functions
47
The fgetc(), getc() and getchar() Functions
47
The fgets() Function
48
The gets() Function
48
The ungetc() Function
48
Opening and Closing Files
49
Direct Input/Output functions
50
How to C#: Set Image Thumbnail in C#.NET
VB.NET How-to, VB.NET PDF, VB.NET Word following steps below, you can create an image viewer WinForm Open or create a new WinForms application, add necessary dll
add image pdf; add jpeg signature to pdf
C# PDF remove image library: remove, delete images from PDF in C#.
Generally speaking, using well-designed APIs, C# developers can do following things. Remove Image from PDF Page Using C#. Add necessary references:
add jpg to pdf form; how to add an image to a pdf in preview
The fwrite() and fread() Functions
50
Fi
le Positioning Functions
50
The fgetpos() and fsetpos() Functions
51
The ftell() and fseek() Function
51
The rewind() Function
51
Managing Buffers
52
Sample Program
53
Portability Lab
60
Chapter 4 Files and Directories
63
Portable Filenames
63
Directory Tr
ee
64
Current Working Directory
64
Making and Removing Directories
66
The rmdir() Function
67
Simulating the mkdir() and rmdir() Functions
67
Directory Structure
67
Manipulating Directories
68
Linking to a File
69
Removing a File
69
Renaming a File
69
File
Characteristics
69
Retrieving a File's Characteristics
72
Changing File Accessibility
73
Changing the Owner of a File
73
Setting File Access and Modification Times
74
P
age x
Reading Directories
75
The opendir() Function
76
The readdir() Function
76
The closedir() Function
76
The rewinddir() Function
76
General Comments
76
Complete Example
77
Pitfall: Symbolic Links
83
Portability Lab
84
Chapter 5 Advanced File Operations
85
Pr
imitive File Operations
86
File Descriptors
87
Opening a file
87
Reading from a File
89
Writing to a File
89
Fast File Copy Example
90
Control Operations on a File
92
F_GETFD/F_SETFD
92
F_GETFL/F_SETFL
93
F_SETLK/F_SETLKW/F_GETLK
94
F_DUPFD
95
Setting the
File Position
95
The dup() and dup2() Functions
96
Closing a File
96
FIFOs and Pipes
96
File Creation Mask
97
The umask() Function
98
Mixing the Levels
98
The fdopen() Function
98
The fileno() Function
98
Pitfalls
99
Portability Lab
99
P
age xi
Chapter 6   Working with Processes
101
Process Creation
101
The fork() Function
101
The exec() Family of Function
102
Example: Piping Output Through more
103
Portability Note
105
Process Termination
106
The wait() and waitpid() Functions
106
Terminating th
e Current Process
108
Returning from main()
108
Calling exit()
109
Calling _exit()
109
Calling abort()
110
Terminating Another Process
110
Signals
110
Signal Actions
112
Signal-Catching Functions
112
Examine and Change Signal Action
113
Standard C Signals
113
POSIX Signals
114
Example: Timing a System Function
116
Signal Sets
117
The sigemptyset() Function
118
The sigfillset() Function
118
The sigaddset() Function
118
The sigdelset() Function
118
Using the sigset Functions
118
The sigismember() Function
119
The sigprocmask() Function
119
The sigpending() Function
119
Wait for a Signal
120
Sending a Signal
121
Portability Lab
122
P
age xii
Chapter 7 Obtaining Information at Run-time
123
Process Identification
123
User Identification
123
User IDs
125
Group IDs
126
System Identification
132
Date and Time
133
The time() Function
133
The localtime() and gmtime() Functions
133
The mktime() Functi
on
135
The strftime() Function
135
The asctime() and ctime() Functions
137
The difftime() Function
137
The clock() and times() Functions
13
7
Environment Variables
138
The getenv() Function
139
The sysconf() Function
140
The pathconf() and fpathconf() Funct
ions
142
Portability Lab
143
Chapter 8 Terminal I/0
145
Terminal Concepts
146
Setting Terminal Parameters
147
The tcsetattr() and tcgetattr() Functions
147
The termios Structure
148
System V termio and POSIX termios Structures
149
Example: Reading a Passwo
rd
150
Input Processing
152
Output Processing
152
Modem Control
153
Non-Canonical I/O
153
Input Modes
153
Output Modes
154
Control Modes
155
Local Modes
155
Documents you may be interested
Documents you may be interested