java - Simple Captcha and make different colors -


i've watched link http://simplecaptcha.sourceforge.net/ , gives demo of images showing captcha can designed colored 1 can not black , white one. reason couldn't find tutorials of how control simplecaptcha colors :( if know snippets or tutorials share them please.

all useful comments appreciated :)

which part want in color? can, example, control color of text via wordrenderer. examples of how use captcha.builder can found on website. can add things following of these examples:

list<java.awt.color> textcolors = arrays.aslist(      color.black, color.blue, color.red); list<java.awt.font> textfonts = arrays.aslist(      new font("arial", font.bold, 40),       new font("courier", font.bold, 40));  java.awt.color backgroundcolor = color.orange;  captcha captcha = new captcha.builder(200, 50)     .addtext(         new defaulttextproducer(),          new defaultwordrenderer(textcolors, textfonts))     .addbackground(new flatcolorbackgroundproducer(backgroundcolor))     .build();

defaultwordrenderer accepts list of colors , fonts can pick several colors/fonts randomly per request. so, if provide 1 color , font, you'll every time. if provide 5 colors , 1 font, you'll same font every time, color selected randomly 5 provided.

the example above uses flatcolorbackgroundproducer, there other options, including gradiatedbackgroundproducer , squigglesbackgroundproducer.


Comments

Post a Comment

Popular posts from this blog

c# - SharpSVN - How to get the previous revision? -

i trying find efficient way previous revision of file text comparison using sharpsvn. using (svnclient c = new svnclient()) { c.authentication.defaultcredentials = new networkcredential( configurationmanager.appsettings.get("svnserviceusername") , configurationmanager.appsettings.get("svnservicepassword") , configurationmanager.appsettings.get("svnservicedomain") ); c.authentication.sslservertrusthandlers += new eventhandler<svnsslservertrusteventargs>(authentication_sslservertrusthandlers); collection<svnfileversioneventargs> fileversioncollection = new collection<svnfileversioneventargs>(); svnrevisionrange range = new svnrevisionrange(0, this.hooks.revision); svnfileversionsargs args = new svnfileversionsargs(); args.retrieveproperties = true; args.range = range; foreach (svnchangeitem item in log.changedpaths) { string path = this.repositorypath + it...
Read more

c++ - Is it possible to compile a VST on linux? -

for class project i'm attempting write vst plugin backed cuda. current cuda workflow on linux box, i'd prefer compile , link there. according wikipedia , should possible (i couldn't find steinberg documentation relevant linux) can't find makefile or instructions on how build if aren't using xcode or visual studio. i'm vst 3 sdk doesn't support linux. when try compile plugin under linux, error: ./base/source/fatomic.cpp:39:30: fatal error: libkern/osatomic.h: no such file or directory this issue caused following code in "vst3 sdk/base/source/fatomic.cpp" #if mac #include <libkern/osatomic.h> #if mac_os_x_version_min_required > mac_os_x_version_10_4 #define native_atomic_type (volatile int32_t*) #else #define native_atomic_type (int32_t*) #endif #elif windows #include <windows.h> #endif but hope compiling under linux work vst sdk 2.4. reading. jvstwrapper seems run on lin...
Read more

url - Querystring manipulation of email Address in PHP -

i using third party application (email2http) send me emailid, body , message. unable retrieve email id due name appended on , enclosed < , >. here querystring getting. test.php?from=ajay+reddy &subject=cx&body=somebody when print variable in php returns name , not email id. $from = $_get['from']; echo $from; //output ajay reddy please suggest me how can emailid also. i dont want use post method due testing , debugging. it's working fine. forgot use htmlentities() in debugging.
Read more