Sample Program in Java

Encoder QR Code in Java Sample Program
Example
Recognizing QR Code JIS X 0510 In Java
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pnoutrefresh(p,0, 0, 0, 0, 23,19); pnoutrefresh(p,24, 0, 0,24,23,43); pnoutrefresh(p,48, 0, 0,48,23, 67); doupdate();
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The pnoutrefresh() functions update portions of the pad p to various locations on the standard screen. The final doupdate() function updates the screen with the information.
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Sample Program
Make Barcode In Java
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 #include <ncurses.h> int main(void) { WINDOW *pad; int a; initscr(); pad = newpad(40,100); if(pad == NULL) { endwin(); puts( Problem creating pad ); return(1); } for(a=0;a<4000;a++) { waddch(pad, A + (a % 26)); } prefresh(pad,0,0,7,30,17,50); wgetch(pad);
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Appendix A
Quick Response Code Encoder In C#.NET
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25 26 27 28 29 30 31 32 33
Generate QR Code In VS .NET
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NCurses Library Reference
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mvwaddstr(pad,1,0, Hello, there! ); pnoutrefresh(pad,0,0,7,30,17,50); doupdate(); wgetch(pad); endwin(); return 0; }
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Sample output: The output is the same as shown for prefresh() below, though after pressing the Enter key, the text Hello, there! appears on the second line.
GS1 - 12 Creation In Java
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Also See
ECC200 Printer In Java
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newpad(), prefresh(), doupdate(), wnoutrefresh()
GTIN - 128 Generation In Java
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prefresh()
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The prefresh() function is used to display information stored in a pad structure to a window.
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Explanation
Decode Universal Product Code Version A In .NET
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Pads work like windows, though they re not displayed on the screen. To see the information put to a pad, the prefresh() function is used. Unlike the refresh() function, prefresh() takes a rectangle of text (and attributes) from the pad and places it in a window. This is how information from a pad is displayed.
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Man Page Format
Encoding GS1-128 In VB.NET
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int prefresh(WINDOW *pad, int pminrow, int pmincol, int sminrow, int smincol, int smaxrow, int smaxcol);
Encoding GTIN - 12 In Visual Studio .NET
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Format Reference
Data Matrix ECC200 Recognizer In .NET Framework
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pad is the name of a pad, a WINDOW pointer returned from the newpad() function.
Paint GTIN - 13 In .NET
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Appendix A
NCurses Library Reference
pminrow and pmincol are int values represents the upper-left (Y and X) coordinates of a rectangle of text on the pad. sminrow and smincol are int values representing the upper-left (Y and X) coordinates of a rectangle of text on the standard screen. This location is where the text from the pad will be placed. smaxrow and smaxcol represent the lower-right (Y and X) coordinate of the rectangle on the standard screen. These are int values and they are relative to the home location, not to sminrow and smincol. The differences between the upper-left and lower-right coordinates on the screen are also used to calculate the size of the rectangle copied from the pad.
Return Value
OK or ERR depending on success or failure of the call.
Notes
prefresh() always outputs text to the standard screen. The prefresh() function updates the standard screen; there is no need to call refresh() after prefresh() to see the text. You cannot prefresh() a rectangle from the pad that is larger than the standard screen (or larger than the pad, for that matter).
Examples
prefresh(p,0,0,0,0,10,35);
The statement here places part of the pad p on the standard screen. The text from the pad starts at location 0, 0. The rectangle on the standard screen starts at location 0, 0, and it is 10 rows deep by 35 columns wide.
prefresh(psto,py,px,10,5,11,75);
Here, text from the pad psto is read from starting location py, px, and placed on the screen at location 10, 5. The rectangle is 1 row high and 70 characters wide.
Sample Program
1 2 3 #include <ncurses.h> int main(void)
Appendix A
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 {
NCurses Library Reference
WINDOW *pad; int a; initscr(); pad = newpad(40,100); if(pad == NULL) { endwin(); puts( Problem creating pad ); return(1); } for(a=0;a<4000;a++) { waddch(pad, A + (a % 26)); } prefresh(pad,0,0,7,30,17,50); wgetch(pad); endwin(); return 0; }
The sample output is shown in Figure A-9.
Also See
11, newpad()
Figure A-9: A square chunk of the pad appears on the terminal screen.
Appendix A
NCurses Library Reference
printw()
The printw() function is the NCurses equivalent to the standard C printf() function. Use printw() in your NCurses programs when you need printf().
Man Page Format
int int int int int int printw(const char *fmt, ...); wprintw(WINDOW *win, const char *fmt, ...); mvprintw(int y, int x, const char *fmt, ...); mvwprintw(WINDOW *win, int y, int x, const char *fmt, ...); vw_printw(WINDOW *win, const char *fmt, va_list varglist); vwprintw(WINDOW *win, const char *fmt, va_list varglist);