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How to get orientation-dependent height and width of the screen?
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Unresolved external symbol in object files
...your case, the definition cannot be found. The issue could be that you are including a header file, which brings in some function declarations, but you either:
do not define the functions in your cpp file (if you wrote this code yourself)
do not include the lib/dll file that contains the definitio...
How to generate UML diagrams (especially sequence diagrams) from Java code?
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How to create a directory in Java?
How do I create Directory/folder?
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Differences between Microsoft .NET 4.0 full Framework and Client Profile
...lways target NET4 Client Profile for all your client desktop applications (including Windows Forms and WPF apps).
NET4 Full framework:
Target NET4 Full only if the features or assemblies that your app need are not included in the Client Profile. This includes:
If you are building Serv...
What is causing this ActiveRecord::ReadOnlyRecord error?
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Force the instance variable @readonly to false in the record (hack)
Use :include => :card instead of :join => :card
Rails 2.3.4 and above
Most of the above no longer holds true, after September 10 2012:
using Record.find_by_sql is a viable option
:readonly => true is automatically in...
Variable number of arguments in C++?
...and simpler way. Technically to use variable number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start(), va_arg() and va_end().
#include<stdarg.h>
int maxof(int n_args, ...)
{
va_list ap;
va_s...
How to use the C socket API in C++ on z/OS
...at, this is what I see:
FORMAT
X/Open
#define _XOPEN_SOURCE_EXTENDED 1
#include <sys/socket.h>
int connect(int socket, const struct sockaddr *address, socklen_t address_len);
Berkeley Sockets
#define _OE_SOCKETS
#include <sys/types.h>
#include <sys/socket.h>
int connect(int...