https://code-reference.com/ 2026-05-18T19:23:15+02:00 https://code-reference.com/ https://code-reference.com/ttps://code-reference.com/lib/tpl/dokuwiki/images/favicon.ico text/html 2024-02-16T01:05:49+02:00 https://code-reference.com/c/graphics.h/graphdefaults?rev=1708041949&do=diff graphdefaults Syntax of graphdefaults #include <graphics.h> void graphdefaults(void); Description of graphdefaults graphdefaults resets all graphics settings to their defaults: * sets the viewport to the entire screen. * moves the current position to (0,0). * sets the default palette colors, background color, and drawing color. * sets the default fill style and pattern. * sets the default text font and justification. text/html 2013-02-26T00:52:26+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_set_local_infile_default?rev=1361836346&do=diff void mysql_set_local_infile_default(MYSQL *mysql) description of mysql_set_local_infile_default mysql_set_local_infile_default is in work by code-reference.com if you are faster... don't hasitate and add it no example at the moment output of mysql_set_local_infile_default c example no example at the moment text/html 2024-02-16T01:04:08+02:00 https://code-reference.com/arduino/control_structures/switchcase?rev=1708041848&do=diff Like if statements, switch...case controls the flow of programs by allowing programmers to specify different code that should be executed in various conditions. In particular, a switch statement compares the value of a variable to the values specified in case statements. When a case statement is found whose value matches that of the variable, the code in that case statement is run. text/html 2017-07-31T22:37:05+02:00 https://code-reference.com/wiki/syntax?rev=1501533425&do=diff DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing the Edit this page button at the top or bottom of the page. If you want to try something, just use the playground page. The simpler markup is easily accessible via quickbuttons, too. text/html 2024-02-16T01:05:50+02:00 https://code-reference.com/c/graphics.h/settextstyle?rev=1708041950&do=diff settextstyle Syntax of settextstyle #include <graphics.h> void settextstyle(int font, int direction, int charsize); Description of settextstyle settextstyle sets the text font, the direction in which text is displayed, and the size of the characters. A call to settextstyle affects all text output by outtext and outtextxy. The parameters font, direction, and charsize passed to settextstyle are described in the following: font: One 8x8 bit-mapped font and several "stroked" fonts are avail… text/html 2013-04-10T15:58:12+02:00 https://code-reference.com/c/control_structures/switch?rev=1365602292&do=diff description The switch statement is a multi-select control structure. An expression is evaluated once and compared to 'constants'. In case of equality, the 'statements' that come after the 'constant' are processed. In switch 'statements' can only ordinary data types (ie, 'int', 'long', char, short, etc.) can be used. text/html 2013-01-17T23:50:06+02:00 https://code-reference.com/c/control_structures?rev=1358463006&do=diff control structures Overview Name Description break break case case continue continue default default do do else else for for goto goto if if return return switch switch while while automatically generated overview ... Change this page if you have a better description text/html 2013-02-27T22:35:20+02:00 https://code-reference.com/c/mysql/mysql.h?rev=1362000920&do=diff mysql Overview Name Description mysql_affected_rows mysql_affected_rows mysql_autocommit mysql_autocommit mysql_change_user mysql_change_user mysql_character_set_name mysql_character_set_name mysql_close mysql_close mysql_commit mysql_commit mysql_connect mysql_connect mysql_create_db mysql_create_db mysql_data_seek mysql_data_seek mysql_debug mysql_debug mysql_drop_db mysql_drop_db mysql_dump_debug_info mysql_dump_debug_info mysql_eof mysql_eof mysql_e… text/html 2013-02-15T19:04:01+02:00 https://code-reference.com/arduino/analog_io/analogreference?rev=1360951441&do=diff Description Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). The options are: * DEFAULT: the default analog reference of 5 volts (on 5V Arduino boards) or 3.3 volts (on 3.3V Arduino boards) * INTERNAL: an built-in reference, equal to 1.1 volts on the ATmega168 or ATmega328 and 2.56 volts on the ATmega8 (not available on the Arduino Mega) * INTERNAL1V1: a built-in 1.1V reference (Arduino Mega only) * INTERNAL2V56: a built-in 2.56V refe… text/html 2024-02-16T01:12:13+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_character_set_name?rev=1708042333&do=diff const char *mysql_character_set_name(MYSQL *mysql) description of mysql_character_set_name mysql_character_set_name returns the default character set for the current connection. #include <stdio.h> /* including standard library */ #include <mysql/mysql.h> MYSQL *my; int main( void ){ char host[20]; char user[20]; char pass[20]; my = mysql_init(NULL); sprintf(host,"localhost"); sprintf(user,"username"); sprintf(pass,"password"); if (my == NULL ) { printf("Cant initalisize MySQL\n"… text/html 2024-02-16T01:04:23+02:00 https://code-reference.com/arduino/due_only/analogreadresolution?rev=1708041863&do=diff Description analogReadResolution() is an extension of the Analog API for the Arduino Due. Sets the size (in bits) of the value returned by analogRead(). It defaults to 10 bits (returns values between 0-1023) for backward compatibility with AVR based boards. text/html 2024-02-16T01:05:56+02:00 https://code-reference.com/c/graphics.h/setmousequeuestatus?rev=1708041956&do=diff setmousequeuestatus Syntax of setmousequeuestatus #include "graphics.h" voud setmousequeuestatus(int kind, bool status=true); Description of setmousequeuestatus The setmousequeuestatus function is available in the winbgim implementation of BGI graphics. This function controls whether mouse events of a particular kind are queued for processing. If the status parameter is false, then mouse events of the specified kind are not queued. This means that each time a mouse event of that kind oc… text/html 2024-02-16T01:05:48+02:00 https://code-reference.com/c/graphics.h/initwindow?rev=1708041948&do=diff initwindow Syntax of initwindow #include "graphics.h" int initwindow(int width, int height, const char* title="Windows BGI", int left=0, int top=0, bool dbflag=false, closeflag=true); Description of initwindow The initwindow function is available in the winbgim implementation of BGI graphics. You do not need to include conio.h; just include graphics.h. The function initializes the graphics system by opening a graphics window of the specified size. The first two parameters (width and hei… text/html 2013-02-26T16:34:25+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_info?rev=1361892865&do=diff const char *mysql_info(MYSQL *mysql) description of mysql_info A character string containing additional information about the most recent query. NULL if no information about the request are available. compile with gcc mysql_info.c -o mysql_info `mysql_config –cflags –libs` -Wall text/html 2024-02-16T01:04:08+02:00 https://code-reference.com/arduino/control_structures/else?rev=1708041848&do=diff if/else allows greater control over the flow of code than the basic if statement, by allowing multiple tests to be grouped together. For example, an analog input could be tested and one action taken if the input was less than 500, and another action taken if the input was 500 or greater. The code would look like this: text/html 2024-02-16T01:05:11+02:00 https://code-reference.com/c/datatypes/signed?rev=1708041911&do=diff signed signed int i; // 'signed' is default signed char -128 to 127 signed int -32768 to 32767 (signed is default) [or -2147483648 to 2147483647 if '-mnoshort' is given] signed short int -32768 to 32767 signed long int -2147483648 to 2147483647 text/html 2024-02-16T01:05:47+02:00 https://code-reference.com/c/graphics.h/getmouseclick?rev=1708041947&do=diff getmouseclick Syntax of getmouseclick #include "graphics.h" voud getmouseclick(int kind, int&amp; x, int&amp; y); Description of getmouseclick The getmouseclick function is available in the winbgim implementation of BGI graphics. This function sets x and y to the pixel coordinates of an unprocessed event of the specified kind. If there is no such event, then the function sets both x and y to -1. The value of the argument kind may be any of the constants listed above. After calling getmo… text/html 2013-04-10T15:55:29+02:00 https://code-reference.com/java/control_structures/switch?rev=1365602129&do=diff The switch statement is a multi-select control structure. An expression is evaluated once and compared to 'constants'. In case of equality, the 'statements' that come after the 'constant' are processed. In switch 'statements' can only ordinary data types (ie, 'int', 'long', char, short, etc.) can be used. text/html 2014-11-06T02:05:30+02:00 https://code-reference.com/c/graphics.h/setviewport?rev=1415235930&do=diff setviewport Syntax of setviewport #include <graphics.h> void setviewport(int left, int top, int right, int bottom, int clip); Description of setviewport setviewport establishes a new viewport for graphics output. The viewport corners are given in absolute screen coordinates by (left,top) and (right,bottom). The current position (CP) is moved to (0,0) in the new window. The parameter clip determines whether drawings are clipped (truncated) at the current viewport boundaries. If clip is n… text/html 2024-02-16T01:05:52+02:00 https://code-reference.com/c/graphics.h/clearviewport?rev=1708041952&do=diff clearviewport Syntax of clearviewport #include <graphics.h> void clearviewport(void); Description of clearviewport clearviewport erases the viewport and moves the CP (current position) to home (0,0), relative to the viewport. Example of clearviewport /* clearviewport example */ #include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h> #define CLIP_ON 1 /* activates clipping in viewport */ int main(void) { /* request autodetection */ int gdriver = DET… text/html 2024-02-16T01:04:32+02:00 https://code-reference.com/cpp/control_structures/switch?rev=1708041872&do=diff Switch ---------- Switch is a loop that is used in c++ to find the many scenarios of an event or object. For example, let's test to see the many scenarios of if someone chooses an item from a menu. #include <iostream> int main() { int choice; cout << "Choose an option:" << endl; cout << "1. OJ" << endl; cout << "2. Milk"<<endl; cout << "3. Water " << endl; cout << "4. Soda" << endl; cout << "5. Gatorade" << endl; cin >> choice; // notice the {}, these are… text/html 2024-02-16T01:12:22+02:00 https://code-reference.com/objective-c/foundation.framework/nsfilemanager.h/defaultmanager?rev=1708042342&do=diff defaultManager + (NSFileManager *)defaultManager; Return Value - Returns the shared file manager object for the process. ObjC Sourcecode Example // ** Default FileManager ** NSFileManager *defaultManager = [NSFileManager defaultManager]; // ** Output Default FileManager ** NSLog(@"DefaultManager: %@", defaultManager); text/html 2024-02-16T01:04:16+02:00 https://code-reference.com/arduino/constants/integerconstants?rev=1708041856&do=diff Integer constants are numbers used directly in a sketch, like 123. By default, these numbers are treated as int's but you can change this with the U and L modifiers (see below). Normally, integer constants are treated as base 10 (decimal) integers, but special notation (formatters) may be used to enter numbers in other bases. text/html 2024-02-16T01:05:58+02:00 https://code-reference.com/c/graphics.h/clearmouseclick?rev=1708041958&do=diff clearmouseclick Syntax of clearmouseclick #include "graphics.h" void clearmouseclick(int kind); Description of clearmouseclick The clearmouseclick function is available in the winbgim implementation of BGI graphics. This is just like getmouseclick, except it does not provide the x and y coordinates of the event. The value of the argument kind may be any of the constants listed above. After calling getmouseclick, for a particular kind of event, the ismouseclick will return false for that… text/html 2013-01-22T02:30:47+02:00 https://code-reference.com/c/keywords?rev=1358818247&do=diff C89 Keywords * auto * break * case * char * const * continue * default * do * double * else * enum * extern * float * for * goto * if * int * long * register * return * short * signed * sizeof * static * struct * switch * typedef * union * unsigned * void * volatile * while text/html 2024-02-16T01:05:47+02:00 https://code-reference.com/c/graphics.h/settextjustify?rev=1708041947&do=diff settextjustify Syntax of settextjustify #include <graphics.h> void settextjustify(int horiz, int vert); Description of settextjustify Text output after a call to settextjustify is justified around the current position (CP) horizontally and vertically, as specified. The default justification settings are LEFT_TEXT (for horizontal) and TOP_TEXT (for vertical). The enumeration text_just in graphics.h provides names for the horiz and vert settings passed to settextjustify. ==== Description … text/html 2013-04-15T09:30:44+02:00 https://code-reference.com/java/io/printstream/format?rev=1366011044&do=diff format args to the format string format and write the result to the stream format(String format, Object... args); return value: stream sign Description 0 if the place is not busy they prints a 0 # if the place is not busy they prints nothing . decimal separator Separates and decimal places. , Groups the numbers (a group is as large as the distance from ”,” to ”.”). ; Delimiter. To the left of the pattern is positive, the right for negative numbers. - The default character for the negative… text/html 2024-02-16T01:05:49+02:00 https://code-reference.com/c/graphics.h/ismouseclick?rev=1708041949&do=diff ismouseclick Syntax of ismouseclick #include "graphics.h" bool ismouseclick(int kind); Description of ismouseclick The ismouseclick function is available in the winbgim implementation of BGI graphics. This function returns true if there is an unprocessed mouse event of the specified kind. The argument to ismouseclick is one of these constants from the graphics.h file: WM_MOUSEMOVE if you want to detect a mouse movement WM_LBUTTONDBLCLK ...detect when the left mouse button is double … text/html 2024-02-16T01:05:50+02:00 https://code-reference.com/c/graphics.h/setgraphbufsize?rev=1708041950&do=diff setgraphbufsize Syntax of setgraphbufsize #include <graphics.h> unsigned setgraphbufsize(unsigned bufsize); Description of setgraphbufsize Some of the graphics routines (such as floodfill) use a memory buffer that is allocated when initgraph is called and released when closegraph is called. The default size of this buffer, allocated by _graphgetmem, is 4,096 bytes. You might want to make this buffer smaller (to save memory space) or bigger (if, for example, a call to floodfill produces … text/html 2024-02-16T01:05:53+02:00 https://code-reference.com/c/graphics.h/getdefaultpalette?rev=1708041953&do=diff getdefaultpalette Syntax of getdefaultpalette #include <graphics.h> struct palettetype *getdefaultpalette(void); Description of getdefaultpalette getdefaultpalette finds the palettetype structure that contains the palette initialized by the driver during initgraph. text/html 2024-02-16T01:05:56+02:00 https://code-reference.com/c/graphics.h/registermousehandler?rev=1708041956&do=diff registermousehandler Example of registermousehandler /* mouse example */ #include "graphics.h" // The click_handler will be called whenever the left mouse button is // clicked. It checks copies the x,y coordinates of the click to // see if the click was on a red pixel. If so, then the boolean // variable red_clicked is set to true. Note that in general // all handlers should be quick. If they need to do more than a little // work, they should set a variable that will trigger the work going, … text/html 2024-02-16T01:04:23+02:00 https://code-reference.com/arduino/due_only/analogwriteresolution?rev=1708041863&do=diff Description analogWriteResolution() is an extension of the Analog API for the Arduino Due. analogWriteResolution() sets the resolution of the analogWrite() function. It defaults to 8 bits (values between 0-255) for backward compatibility with AVR based boards. text/html 2013-02-15T19:15:27+02:00 https://code-reference.com/arduino/arithmetic_operators/arithmetic?rev=1360952127&do=diff Description These operators return the sum, difference, product, or quotient (respectively) of the two operands. The operation is conducted using the data type of the operands, so, for example, 9 / 4 gives 2 since 9 and 4 are ints. This also means that the operation can overflow if the result is larger than that which can be stored in the data type (e.g. adding 1 to an int with the value 32,767 gives -32,768). If the operands are of different types, the “larger” type is used for the calculat… text/html 2013-01-22T13:01:53+02:00 https://code-reference.com/c/keywords/auto?rev=1358856113&do=diff since C 89 The auto keyword defines a local variable as having a local lifetime. As the local lifetime is the default for local variables it's extremely rarely used. Note: GNU C extends the auto keyword to allow forward declaration of nested functions. text/html 2024-02-16T01:05:49+02:00 https://code-reference.com/c/graphics.h/setgraphmode?rev=1708041949&do=diff setgraphmode Syntax of setgraphmode #include <graphics.h> void setgraphmode(int mode); Description of setgraphmode setgraphmode selects a graphics mode different than the default one set by initgraph. mode must be a valid mode for the current device driver. setgraphmode clears the screen and resets all graphics settings to their defaults (current position, palette, color, viewport, and so on). You can use setgraphmode in conjunction with restorecrtmode to switch back and forth between t… text/html 2024-02-16T01:05:50+02:00 https://code-reference.com/c/graphics.h/gettextsettings?rev=1708041950&do=diff gettextsettings Syntax of gettextsettings #include <graphics.h> void gettextsettings(struct textsettingstype *texttypeinfo); Description of gettextsettings gettextsettings fills the textsettingstype structure pointed to by textinfo with information about the current text font, direction, size, and justification. The textsettingstype structure used by gettextsettings is defined in graphics.h as follows: struct textsettingstype { int font; int direction; int charsize; int hori… text/html 2024-02-16T01:05:51+02:00 https://code-reference.com/c/graphics.h/outtextxy?rev=1708041951&do=diff outtextxy Syntax of outtextxy #include <graphics.h> void outtextxy(int x, int y, char *textstring); Description of outtextxy outtextxy displays a text string in the viewport at the given position (x, y), using the current justification settings and the current font, direction, and size. To maintain code compatibility when using several fonts, use textwidth and textheight to determine the dimensions of the string. If a string is printed with the default font using outtext or outtextxy, a… text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/outtext?rev=1708041957&do=diff outtext Syntax of outtext #include <graphics.h> void outtext(char *textstring); Description of outtext outtext displays a text string in the viewport, using the current font, direction, and size. outtext outputs textstring at the current position (CP). If the horizontal text justification is LEFT_TEXT and the text direction is HORIZ_DIR, the CP's x-coordinate is advanced by textwidth(textstring). Otherwise, the CP remains unchanged. To maintain code compatibility when using several font… text/html 2024-02-16T01:05:54+02:00 https://code-reference.com/c/graphics.h/setaspectratio?rev=1708041954&do=diff setaspectratio Syntax of setaspectratio #include <graphics.h> void setaspectratio(int xasp, int yasp); Description of setaspectratio setaspectratio changes the default aspect ratio of the graphics system. The graphics system uses the aspect ratio to make sure that circles are round onscreen. If circles appear elliptical, the monitor is not aligned properly. You could correct this in the hardware by realigning the monitor, but it's easier to change in the software by using setaspectratio… text/html 2013-01-18T16:41:24+02:00 https://code-reference.com/c/control_structures/default?rev=1358523684&do=diff see switch text/html 2024-02-16T01:05:55+02:00 https://code-reference.com/c/graphics.h/setpalette?rev=1708041955&do=diff setpalette Syntax of setpalette #include <graphics.h> void setpalette(int colornum, int color); Description of setpalette setpalette changes the colornum entry in the palette to color. For example, setpalette(0,5) changes the first color in the current palette (the background color) to actual color number 5. If size is the number of entries in the current palette, colornum can range between 0 and (size - 1). You can partially (or completely)… text/html 2014-08-19T02:25:26+02:00 https://code-reference.com/objective-c/examples/uiwebview_using_local_resources?rev=1408407926&do=diff Sometimes you need or want to load a UIWebView displaying content provided with an app. If there is more then one site it might make sense to have an external .css or .js file for all your html content. Whatever, I was facing this problem currently and decided to provide my solution to you. text/html 2013-02-27T23:12:50+02:00 https://code-reference.com/c/mysql/mysql.h/mysql_debug?rev=1362003170&do=diff void mysql_debug(const char *debug) description of mysql_debug Use this to set debugging if the client was compiled with debugging. The set of options used by default is 'd:t:o,logname'. See the table at the end of the list of options for the mysqldump utility for an explanation of these flags and others that may be used. text/html 2024-02-16T01:05:51+02:00 https://code-reference.com/c/graphics.h/setallpalette?rev=1708041951&do=diff setallpalette Syntax of setallpalette #include <graphics.h> void setallpalette(struct palettetype *palette); Description of setallpalette setallpalette sets the current palette to the values given in the palettetype structure pointed to by palette. You can partially (or completely) change the colors in the EGA/VGA palette with setallpalette. The MAXCOLORS constant and the palettetype structure used by setallpalette are defined in graphics.h as follows: #define MAXCOLORS 15 struct pale… text/html 2024-02-16T01:05:47+02:00 https://code-reference.com/c/graphics.h/setrgbpalette?rev=1708041947&do=diff setrgbpalette Syntax of setrgbpalette #include <graphics.h> void setrgbpalette(int colornum, int red, int green, int blue); Description of setrgbpalette setrgbpalette can be used with the IBM 8514 and VGA drivers. colornum defines the palette entry to be loaded, while red, green, and blue define the component colors of the palette entry. For the IBM 8514 display (and the VGA in 256K color mode), colornum is in the range 0 to 255. For the remaining modes of the VGA, colornum is in the ra… text/html 2024-02-16T01:05:57+02:00 https://code-reference.com/c/graphics.h/getch?rev=1708041957&do=diff getch Syntax of getch #include "graphics.h" int getch(void); Description of getch The getch function is available in the winbgim implementation of BGI graphics. You do not need to include conio.h; just include graphics.h. The function reads one character from the keyboard and returns its ASCII value (without waiting for a return key). In order to work, the user must click in the graphics window (i.e., the Windows focus must be in the graphics window). For special keys, the getch functio… text/html 2024-02-16T01:04:31+02:00 https://code-reference.com/arduino/advanced_io/pulsein?rev=1708041871&do=diff Description Reads a pulse (either HIGH or LOW) on a pin. For example, if value is HIGH, pulseIn() waits for the pin to go HIGH, starts timing, then waits for the pin to go LOW and stops timing. Returns the length of the pulse in microseconds. Gives up and returns 0 if no pulse starts within a specified time out. text/html 2024-02-16T01:04:24+02:00 https://code-reference.com/arduino/interrupts/nointerrupts?rev=1708041864&do=diff Description Disables interrupts (you can re-enable them with interrupts()). Interrupts allow certain important tasks to happen in the background and are enabled by default. Some functions will not work while interrupts are disabled, and incoming communication may be ignored. Interrupts can slightly disrupt the timing of code, however, and may be disabled for particularly critical sections of code. text/html 2024-02-16T01:05:51+02:00 https://code-reference.com/c/graphics.h/mousey?rev=1708041951&do=diff mousey Syntax of mousey #include "graphics.h" int mousey(void); Description of mousey The mousey function is available in the winbgim implementation of BGI graphics. It returns the most recent y coordinate of the mouse within the graphics window. Y-coordinates start with 0 at the top edge of the window and increase to getmaxy( ) at the bottom edge of the window. text/html 2024-02-16T01:04:24+02:00 https://code-reference.com/arduino/interrupts/interrupts?rev=1708041864&do=diff Description Re-enables interrupts (after they've been disabled by noInterrupts()). Interrupts allow certain important tasks to happen in the background and are enabled by default. Some functions will not work while interrupts are disabled, and incoming communication may be ignored. Interrupts can slightly disrupt the timing of code, however, and may be disabled for particularly critical sections of code. text/html 2024-02-16T01:05:52+02:00 https://code-reference.com/c/graphics.h/mousex?rev=1708041952&do=diff mousex Syntax of mousex #include "graphics.h" int mousex(void); Description of mousex The mousex function is available in the winbgim implementation of BGI graphics. It returns the most recent x coordinate of the mouse within the graphics window. X-coordinates start with 0 at the left edge of the window and increase to getmaxx( ) at the right edge of the window. text/html 2024-02-16T01:05:46+02:00 https://code-reference.com/c/stdarg.h/va_arg?rev=1708041946&do=diff type va_arg(va_list ap, type); description The va_arg() macro expands to an expression that has the type and value of the next argument in the call. The argument ap is the va_list ap initialized by va_start(). Each call to va_arg() modifies ap so that the next call returns the next argument. The argument type is a type name specified so that the type of a pointer to an object that has the specified type can be obtained simply by adding a * to type…