Search Results

Search found 10366 results on 415 pages for 'const char pointer'.

Page 271/415 | < Previous Page | 267 268 269 270 271 272 273 274 275 276 277 278  | Next Page >

• Flash/Flex: play embedded AAC audio?

  - by aaaidan

  I'm pretty sure of the answer, but just wanted to check with you all. Is it possible to play an embedded AAC file in Flash/Flex somehow? I know you can playback embedded MP3 files, but I hear that you can't do that with AAC. Anyone know any sneaky ways to get around this? By way of illustration, here's come code. [Embed(source='../../audio/music02.m4a', mimeType="audio/aac")] private static const __ExampleMp4File:Class; public var myMp4Sound:Sound = new __ExampleMp4File(); public function EmbeddedAudioTest() { myMp4Sound.play(); }

  Read the article

• C++ floating point precision

  - by Davinel

  double a = 0.3; std::cout.precision(20); std::cout << a << std::endl; result: 0.2999999999999999889 double a, b; a = 0.3; b = 0; for (char i = 1; i <= 50; i++) { b = b + a; }; std::cout.precision(20); std::cout << b << std::endl; result: 15.000000000000014211 So.. 'a' is smaller than it should be. But if we take 'a' 50 times - result will be bigger than it should be. Why is this? And how to get correct result in this case?

  Read the article

• How do I properly add the Kal framework to my iPhone project?

  - by BeachRunnerJoe

  I'm new to iPhone development and I'm having trouble using the 3rd part Kal framework in my project. I can't find any documentation on how to add the Kal framework to my code, so I assumed it was just a matter of adding the source files to my project's "Groups and Files" and set the Header file search path to include the new code. Is that all I need to do to properly add the Kal framework to my iPhone project? I'm getting this error (shown below), what is it indicating? Undefined symbols: ".objc_class_name_KalViewController", referenced from: literal-pointer@__OBJC@__cls_refs@KalViewController in RootViewController.o ld: symbol(s) not found I get this error when I add the statement... kalViewController = [[[KalViewController alloc] init] autorelease]; to my RootViewController.m viewDidLoad method and #import "Kal.h" Thanks so much for your help!

  Read the article

• iPhone Foundation - performance implications of mutable and xxxWithCapacity:0

  - by Adam Eberbach

  All of the collection classes have two versions - mutable and immutable, such as NSArray and NSMutableArray. Is the distinction merely to promote careful programming by providing a const collection or is there some performance hit when using a mutable object as opposed to immutable? Similarly each of the collection classes has a method xxxxWithCapacity, like [NSMutableArray arrayWithCapacity:0]. I often use zero as the argument because it seems a better choice than guessing wrongly how many objects might be added. Is there some performance advantage to creating a collection with capacity for enough objects in advance? If not why isn't the function something like + (id)emptyArray?

  Read the article

• Returning a tuple of multipe objects in Python C API

  - by celil

  I am writing a native function that will return multiple Python objects PyObject *V = PyList_New(0); PyObject *E = PyList_New(0); PyObject *F = PyList_New(0); return Py_BuildValue("ooo", V, E, F); This compiles fine, however, when I call it from a Python program, I get an error: SystemError: bad format char passed to Py_BuildValue How can this be done correctly? EDIT: The following works PyObject *rslt = PyTuple_New(3); PyTuple_SetItem(rslt, 0, V); PyTuple_SetItem(rslt, 1, E); PyTuple_SetItem(rslt, 2, F); return rslt; However, isn't there a shorter way to do this?

  Read the article

• vss intializefor backup fails with return code E_UNEXPECTED

  - by suresh

  #include "vss.h" #include "vswriter.h" #include <VsBackup.h> #include <stdio.h> #define CHECK_PRINT(result) printf("%s\n",result==S_OK?"S_OK":"error") int main(int argc, char* argv[]) { BSTR xml; LPTSTR errorText; IVssBackupComponents *VssHandle; HRESULT result = CreateVssBackupComponents(&VssHandle); CHECK_PRINT(result); result = VssHandle->InitializeForBackup(); printf("unexpected%x\n",result); system("pause"); return 0; } in the above program intializeforbackup fails with error code E_UNEXPECTED. The VSS service is running . In the event log it shows as "Volume Shadow Copy Service error: Unexpected error calling routine CoCreateInstance. hr = 0x800401f0.".. Any solutions for the InitializeForBackup to return S_OK?

  Read the article

• jQueryUI Ajax.NET Postback Bug

  - by nigative

  Hi, I have this ASP.NET page with ASP.NET UpdatePanel and jQueryUI droppable and sortable components. The page works fine in all browsers, but doesn't in Internet Explorer (IE8 tested). After I try to call ASP.NET AJAX event (by pressing my asp.net button inside the UpdatePanel) my sortable list stops working properly inside IE browser and the browser throws the following error: Message: Unspecified error. Line: 145 Char: 186 Code: 0 URI: http://code.jquery.com/jquery-1.4.2.min.js I found out that the problem is caused by the code on line 66: $("#droppable").droppable(); If I comment it out, the sortable list works fine after ajax postbacks. But it doesn't make sense. Does anyone know what could be wrong? Thanks. P.S. I am using jQueryUI 1.8.1 and jQuery 1.4.2

  Read the article

• Skype Raw API (NOT COM API) send message problem

  - by Mike Trader

  In converting this CONSOLE example to a full windows dialog implementation I have run into a very "simple problem". SendMessage() (line 283) is returning zero, GetLastError reveals 0x578 - Invalid window handle. http://read.pudn.com/downloads51/sourcecode/windows/multimedia/175678/msgapitest.cpp__.htm (https://developer.skype.com/Download/Sample...example_win.zip) C++ 2005 Studio express edition instructions http://forum.skype.com/index.php?showtopic=54549 The previous call using HWND_BROADCAST works and Skype replies as expected, so I know Skype is installed and working properly. The handle I use is the wParam value from the Skype Reply message, as in the code. This is non zero, but I am not sure if there is a way to test it other than with SendMessage. The compiled app from this C++ code example (see zip download) does actually work so I am stumped. I do encode the message with UTF8, and I create an instance of the COPYDATASTRUCT in my app, populate it then call SendMessage() with the COPYDATASTRUCT pointer in lparam. Skype does not respond nor does it obey. Am I missing something obvious here?

  Read the article

• How large should my recv buffer be when calling recv in the socket library

  - by Silmaril89

  Hi, I have a few questions about the socket library in C. Here is a snippet of code I'll refer to in my questions. char recv_buffer[3000]; recv(socket, recv_buffer, 3000, 0); First, How do I decide how big to make recv_buffer? I'm using 3000, but it's arbitrary. Second, what happens if recv() receives a packet bigger than my recv_buffer? Third, how can I know if I have received the entire message without calling recv again and have it wait forever when there is nothing to be received? And finally, is there a way I can make a buffer not have a fixed amount of space, so that I can keep adding to it without fear of running out of space? maybe using strcat to concatenate the latest recv() response to the buffer? I know it's a lot of questions in one, but I would greatly appreciate any responses.

  Read the article

• Silverlight tests not working unless RDP connection open

  - by Duncan Bayne

  I have a few Silverlight UI tests that I'm automating with White. These tests are subsequently run by a TFS build agent, which is running interactively so it can access the desktop. The build passes if I have a Remote Desktop connection open to the build agent as the tests are run; I can see the mouse pointer moving around. When the test clicks on a HyperlinkButton navigation takes place, and is subsequently verified by assertions within the test. The build fails if I do not have a Remote Desktop connection open to the build agent as the tests are run. The Internet Explorer window is created and the Silverlight app loads, but no clicks happen; the application remains on the initial page and test assertions subsequently fail. Has anyone out there found a solution to this problem?

  Read the article

• Will dbCommand.Close() close the connection as well?

  - by J.W.

  I have the following ado.net code, if I already use using to wrap my DBCommand, do I have to close the underneath connection explicitly? Thanks, public static void ExecuteSQL(int Id) { Database db; const string sqlCommand = "Stored Procedure Name"; try { db = DatabaseFactory.CreateDatabase(); using (DbCommand dbCommand = db.GetStoredProcCommand(sqlCommand)) { db.AddInParameter(dbCommand, "p_Id", DbType.Int32, Id); db.ExecuteNonQuery(dbCommand); **//do I have to close connection explicitely here??** if (dbCommand.Connection.State != ConnectionState.Closed) { dbCommand.Connection.Close(); } dbCommand.Connection.Dispose(); } } catch (Exception ex) { Logger.Log.Error(ex.StackTrace, ex); throw; } }

  Read the article

• Are there gotchas using varargs with reference parameters

  - by Roddy

  I have this piece of code (summarized)... AnsiString working(AnsiString format,...) { va_list argptr; AnsiString buff; va_start(argptr, format); buff.vprintf(format.c_str(), argptr); va_end(argptr); return buff; } And, on the basis that pass by reference is preferred where possible, I changed it thusly. AnsiString broken(const AnsiString &format,...) { ... the rest, totally identical ... } My calling code is like this:- AnsiString s1, s2; s1 = working("Hello %s", "World"); s2 = broken("Hello %s", "World"); But, s1 contains "Hello World", while s2 has "Hello (null)". I think this is due to the way va_start works, but I'm not exactly sure what's going on.

  Read the article

• Having a little trouble with this Java code. Beginner probably mixing some things with C#.

  - by Sergio Tapia

  package practico1; /** * Programador: Sergio Tapia Gutierrez * Fecha: Lunes 10, Mayo - 2010 * Practico: 1 */ public class Main { public static void main(String[] args) { System.out.println("Esta es una pequena aplicacion para mostrar los"); System.out.println("distintos tipos de datos que existen en Java 6."); //boolean, char, byte, short, int, long, float, double, String ejemplosBoolean(); } public void ejemplosBoolean(){ } } So, I'm just testing some things out, but I'm getting an error claiming that I'm trying to run ejemplosBoolean() in a static context when it isn't a static method. My question is, in Java do methods have to have static in order to use them even if they are in the same class?

  Read the article

• How can I make the Telerik progress bar work?

  - by Darien Fawkes

  I have a Telerik progress bar in my project: <telerik:RadProgressManager ID="RadProgressManager" Runat="server" /> <telerik:RadProgressArea ID="RadProgressArea" Runat="server"></telerik:RadProgressArea> <asp:button id="Button1" runat="server" text="Submit" /> On button click I try to run this method: private void MethodWhichUpdatesTheProgressContext(UploadedFile file, int countFile) { const int total = 100; RadProgressContext ProgressContex = RadProgressContext.Current; ProgressContex.SecondaryTotal = "100"; for (int i = 0; i < total; i++) { ProgressContex.CurrentOperationText = "Uploading zip file percentage " + i.ToString(); if (!Response.IsClientConnected) { break; } System.Threading.Thread.Sleep(100); } } Project builds without any errors but progress doesn't change. How do I properly fire the progress bar animation? If I put this progress bar on control, it can effect this?

  Read the article

• How to use boost::crc?

  - by Andreas Bonini

  I want to use boost::crc so that it works exactly like PHP's crc32() function. I tried reading the horrible documentation and many headaches later I haven't made any progress. Apparently I have to do something like: int GetCrc32(const string& my_string) { return crc_32 = boost::crc<bits, TruncPoly, InitRem, FinalXor, ReflectIn, ReflectRem>(my_string.c_str(), my_string.length()); } bits should be 32.. What the other things are is a mystery. A little help? ;)

  Read the article

• Is the valid state domain of a program a regular language?

  - by BCS

  If you look at the call stack of a program and treat each return pointer as a token, what kind of automata is needed to build a recognizer for the valid states of the program? As a corollary, what kind of automata is needed to build a recognizer for a specific bug state? My thought is that if these form regular languages than some interesting tools could be built around that. E.g. given a set of crash/failure dumps, automatically group them and generate a recognizer to identify new instances of know bugs.

  Read the article

• Use Google Test from Qt in Windows

  - by Dave

  I have a simple test file, TestMe.cpp: #include <gtest/gtest.h> TEST(MyTest, SomeTest) { EXPECT_EQ(1, 1); } int main(int argc, char **argv) { ::testing::InitGoogleTest(&argc, argv); return RUN_ALL_TESTS(); } I have Google Test built as a static library. (I can provide the makefile if it's relevant.) I can compile TestMe.cpp from a command-line with no problem: g++ TestMe.cpp -IC:\gtest-1.5.0\gtest-1.5.0\include -L../gtest/staticlib -lgtest -o TestMe.exe It runs as expected. However, I cannot get this to compile in Qt. My Qt project file, in the same directory: SOURCES += TestMe.cpp INCLUDEPATH += C:\gtest-1.5.0\gtest-1.5.0\include LIBS += -L../gtest/staticlib -lgtest This results in 17 "unresolved external symbol" errors related to gtest functions. I'm pulling my hair out here, as I'm sure it's something simple. Any ideas?

  Read the article

• One pass multiple whitespace replace to single whitespace and eliminate leading and trailing whitesp

  - by Phoenix

  void RemoveSpace(char *String) { int i=0,y=0; int leading=0; for(i=0,y=0;String[i]!='\0';i++,y++) { String[y]=String[i]; // let us copy the current character. if(isspace(String[i])) // Is the current character a space? { if(isspace(String[i+1])||String[i+1]=='\0'||leading!=1) // leading space y--; } else leading=1; } String[y]='\0'; } Does this do the trick of removing leading and trailing whitespaces and replacing multiple whitespaces with single ones ?? i tested it for null string, all whitespaces, leading whitespaces and trailing whitespaces. Do you think this is an efficient one pass solution ??

  Read the article

• How to set permissions on MSMQ Cluster queues?

  - by JorgeSandoval

  I've got a cluster with functioning private MSMQ 3.0 queues. I'm trying to programmatically set the permissions, but can't seem to connect via System.Messaging on the queues. The code below works just fine when working with local queues (and using .\ nomenclature for the local queue). How to programmatically set the permissions on the clustered queues? Powershell code executed from the active node function set-msmqpermission ([string] $queuepath,[string] $account, [string] $accessright) { if (!([System.Messaging.MessageQueue]::Exists($queuepath))){ throw "$queuepath could not be found." } $q=New-Object System.Messaging.MessageQueue($queuepath) $q.SetPermissions($account,[System.Messaging.MessageQueueAccessRights]::$accessright, [System.Messaging.AccessControlEntryType]::Set) } set-msmqpermission "clusternetworkname\private$\qa1ack" "UserAccount" "FullControl" Exception calling "SetPermissions" with "3" argument(s): "Invalid queue path name." At line:30 char:19 + $q.SetPermissions <<<< ($account,[System.Messaging.MessageQueueAccessRights]::$accessright, + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException

  Read the article

• sprintf an LPCWSTR variable

  - by Julio

  Hello everyone. I'm trying to debug print an LPCWSTR string, but I get a problem during the sprintf push in the buffer, because it retrieve only the first character from the string. Here is the code: HANDLE WINAPI hookedCreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) { char buffer[1024]; sprintf_s(buffer, 1024, "CreateFileW: %s", lpFileName); OutputDebugString(buffer); return trueCreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwFlagsAndAttributes, dwCreationDisposition, hTemplateFile); } For example I get "CreateFileW: C" or "CreateFileW: \". How do I properly push it in the buffer? Thank you.

  Read the article

• Constructing a hash table/hash function.

  - by nn

  Hi, I would like to construct a hash table that looks up keys in sequences (strings) of bytes ranging from 1 to 15 bytes. I would like to store an integer value, so I imagine an array for hashing would suffice. I'm having difficulty conceptualizing how to construct a hash function such that given the key would give an index into the array. Any assistance would be much appreiated. The maximum number of entries in the hash is: 4081*15 + 4081*14 + ... 4081 = 4081((15*(16))/2) = 489720. So for example: int table[489720]; int lookup(unsigned char *key) { int index = hash(key); return table[index]; } How can I compute hash(key). I'd preferably like to get a perfect hash function. Thanks.

  Read the article

• How do i translate movement on the Canvas3D to movement in the virtual 3D world

  - by Coder

  My goal is to move a shape in the virtual world in such a way so that it ends up where the mouse pointer is on the canvas. What i have: -mouse position (x,y) on a Canvas3D object -Point3d object of where a pick ray starting from the Canvas3D viewport intersects with the first scene object. (point in 3D space of where i want to start the drag) What i want: -Some way to translate the Point3d's coordinates so that the initial point of intersection (the Point3d object) is always overlapping the the mouse position on the canvas (same as when i used the pick ray to determine what the user clicked on from the Canvas3D object). Thanks!

  Read the article

• Copy hashtable to another hashtable using c++

  - by zengr

  I am starting with c++ and need to know, what should be the approach to copy one hashtable to another hashtable in C++? We can easily do this in java using: HashMap copyOfOriginal=new HashMap(original); But what about C++? How should I go about it? UPDATE Well, I am doing it at a very basic level,perhaps the java example was a wrong one to give. This is what I am trying to implement using C++: I have this hash array and each element of the array point to the head of a linked list. Which has it's individual nodes (data and next pointer). And now, I need to copy the complete hash array and the linked list each node is pointing to.

  Read the article

• getting "implicit declaration of function 'fcloseall' is invalid in C99" when compiling to gnu99

  - by Emanuel Ey

  Consider the following C code: #include <stdio.h> #include <stdlib.h> void fatal(const char* message){ /* Prints a message and terminates the program. Closes all open i/o streams before exiting. */ printf("%s\n", message); fcloseall(); exit(EXIT_FAILURE); } I'm using clang 2.8 to compile: clang -Wall -std=gnu99 -o <executable> <source.c> And get: implicit declaration of function 'fcloseall' is invalid in C99 Which is true, but i'm explicitly compiling to gnu99 [which should support fcloseall()], and not to c99. Although the code runs, I don like the have unresolved warnings when compiling. How can i solve this?

  Read the article

• boost::program_options bug or feature?

  - by Dmitriy

  Very simple example: #include <string> #include <boost/program_options.hpp> namespace po = boost::program_options; int main(int argc, char* argv[]) { po::options_description recipients("Recipient(s)"); recipients.add_options() ("csv", po::value<std::string>(), "" ) ("csv_name", po::value<unsigned>(), "" ) ; po::options_description cmdline_options; cmdline_options.add(recipients); po::variables_map vm; po::store(po::command_line_parser(argc, argv).options(cmdline_options).run(), vm); po::notify(vm); return 0; } And some tests: >Test --csv test in option 'csv_name': invalid option value >Test --csv_name test in option 'csv_name': invalid option value >Test --csv_name 0 >Test --csv text in option 'csv_name': invalid option value >Test --csv 0 >Test --csv_name 0 >Test --csv_name 0 --csv text multiple occurrences Looks like that boost::program_option threats parameter "csv" as "csv_name". Is it a feature or bug?

  Read the article

< Previous Page | 267 268 269 270 271 272 273 274 275 276 277 278  | Next Page >