// Purpose: interface of various utility classes and functions
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
wxChar* wxGetenv(const wxString& var);
/**
- Returns the current value of the environment variable @c var in @c value.
- @c value may be @NULL if you just want to know if the variable exists and
+ Returns the current value of the environment variable @a var in @a value.
+
+ @a value may be @NULL if you just want to know if the variable exists and
are not interested in its value.
Returns @true if the variable exists, @false otherwise.
bool wxGetEnv(const wxString& var, wxString* value);
/**
- Sets the value of the environment variable @c var (adding it if necessary)
- to @c value.
-
- Returns @true on success.
+ Sets the value of the environment variable @a var (adding it if necessary)
+ to @a value.
+
+ Notice that under Windows platforms the program may have two different
+ environment blocks: the first one is that of a Windows process and is
+ always present, but the CRT may maintain its own independent copy of the
+ environment. wxSetEnv() will always update the first copy, which means that
+ wxGetEnv(), which uses it directly, will always return the expected value
+ after this call. But wxSetEnv() only updates the second copy for some
+ compilers/CRT implementations (currently only MSVC) and so using wxGetenv()
+ (notice the difference in case) may not return the updated value.
+
+ @param var
+ The environment variable to be set, must not contain @c '=' character.
+ @param value
+ New value of the variable.
+ @return
+ @true on success or @false if changing the value failed.
@see wxUnsetEnv()
bool wxSetEnv(const wxString& var, const wxString& value);
/**
- Removes the variable @c var from the environment. wxGetEnv() will return
- @NULL after the call to this function.
+ Removes the variable @a var from the environment.
+
+ wxGetEnv() will return @NULL after the call to this function.
Returns @true on success.
*/
void wxPostDelete(wxObject* object);
+
+/**
+ Compare function type for use with wxQsort()
+
+ @header{wx/utils.h}
+*/
+extern "C"
+{
+typedef int (wxCMPFUNC_CONV *CMPFUNCDATA)(const void* pItem1, const void* pItem2, const void* user_data);
+}
+
+/**
+ Function for performing a qsort operation including a user data
+ parameter.
+
+ @header{wx/utils.h}
+*/
+void wxQsort(void *const pbase, size_t total_elems,
+ size_t size, CMPFUNCDATA cmp, const void* user_data);
+
+
/**
Under X only, sets the current display name. This is the X host and display
name such as "colonsay:0.0", and the function indicates which display
wxString wxGetOsDescription();
/**
- Gets the version and the operating system ID for currently running OS. See
- wxPlatformInfo for more details about wxOperatingSystemId.
+ Gets the version and the operating system ID for currently running OS.
+ The returned wxOperatingSystemId value can be used for a basic categorization
+ of the OS family; the major and minor version numbers allows to detect a specific
+ system.
+
+ For Unix-like systems (@c wxOS_UNIX) the major and minor version integers will
+ contain the kernel major and minor version numbers (as returned by the
+ 'uname -r' command); e.g. "2" and "6" if the machine is using kernel 2.6.19.
+
+ For Mac OS X systems (@c wxOS_MAC) the major and minor version integers are the
+ natural version numbers associated with the OS; e.g. "10" and and "6" if the machine
+ is using Mac OS X Snow Leopard.
+
+ For Windows-like systems (@c wxOS_WINDOWS) the major and minor version integers will
+ contain the following values:
+ @beginTable
+ @row3col{<b>Windows OS name</b>, <b>Major version</b>, <b>Minor version</b>}
+ @row3col{Windows 7, 6, 1}
+ @row3col{Windows Server 2008 R2, 6, 1}
+ @row3col{Windows Server 2008, 6, 0}
+ @row3col{Windows Vista, 6, 0}
+ @row3col{Windows Server 2003 R2, 5, 2}
+ @row3col{Windows Server 2003, 5, 2}
+ @row3col{Windows XP, 5, 1}
+ @row3col{Windows 2000, 5, 0}
+ @endDefList
+ See the <a href="http://msdn.microsoft.com/en-us/library/ms724832(VS.85).aspx">MSDN</a>
+ for more info about the values above.
@see wxGetOsDescription(), wxPlatformInfo
*/
bool wxIsPlatformLittleEndian();
+/**
+ Returns a structure containing informations about the currently running
+ Linux distribution.
+
+ This function uses the @c lsb_release utility which is part of the
+ <tt>Linux Standard Base Core</tt> specification
+ (see http://refspecs.linux-foundation.org/lsb.shtml) since the very first LSB
+ release 1.0 (released in 2001).
+ The @c lsb_release utility is very common on modern Linux distributions but in
+ case it's not available, then this function will return a ::wxLinuxDistributionInfo
+ structure containing empty strings.
+
+ This function is Linux-specific and is only available when the @c __LINUX__
+ symbol is defined.
+*/
+wxLinuxDistributionInfo wxGetLinuxDistributionInfo();
+
//@}
@header{wx/utils.h}
@beginWxPerlOnly
- This function is called @c Wx::ExecuteStdoutStderr and it only takes the
- @a command argument, and returns a 3-element list (@c status, @c output,
- @c errors), where @c output and @c errors are array references.
+ In wxPerl this function is called @c Wx::ExecuteCommand.
@endWxPerlOnly
*/
long wxExecute(const wxString& command, int flags = wxEXEC_ASYNC,
wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
@header{wx/utils.h}
+
+ @beginWxPerlOnly
+ In wxPerl this function is called @c Wx::ExecuteArgs.
+ @endWxPerlOnly
*/
long wxExecute(char** argv, int flags = wxEXEC_ASYNC,
wxProcess* callback = NULL);
@param output
The string array where the stdout of the executed process is saved.
@param flags
- Must include either wxEXEC_ASYNC or wxEXEC_SYNC and can also include
- wxEXEC_NOHIDE, wxEXEC_MAKE_GROUP_LEADER (in either case) or
+ May include wxEXEC_NOHIDE, wxEXEC_MAKE_GROUP_LEADER (in either case) or
wxEXEC_NODISABLE and wxEXEC_NOEVENTS or wxEXEC_BLOCK, which is equal to
- their combination, in wxEXEC_SYNC case.
+ their combination. wxEXEC_SYNC is always implicitly added to the flags.
@see wxShell(), wxProcess, @ref page_samples_exec,
wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
@header{wx/utils.h}
+
+ @beginWxPerlOnly
+ This function is called @c Wx::ExecuteStdout: it only takes the
+ @a command argument, and returns a 2-element list (@c status, @c output),
+ where @c output in an array reference.
+ @endWxPerlOnly
*/
long wxExecute(const wxString& command, wxArrayString& output, int flags = 0);
please see its documentation for general information.
This version adds the possibility to additionally capture the messages from
- standard error output in the @a errors array.
+ standard error output in the @a errors array. As with the above overload
+ capturing standard output only, execution is always synchronous.
@param command
The command to execute and any parameters to pass to it as a single
@param errors
The string array where the stderr of the executed process is saved.
@param flags
- Must include either wxEXEC_ASYNC or wxEXEC_SYNC and can also include
- wxEXEC_NOHIDE, wxEXEC_MAKE_GROUP_LEADER (in either case) or
+ May include wxEXEC_NOHIDE, wxEXEC_MAKE_GROUP_LEADER (in either case) or
wxEXEC_NODISABLE and wxEXEC_NOEVENTS or wxEXEC_BLOCK, which is equal to
- their combination, in wxEXEC_SYNC case.
+ their combination. wxEXEC_SYNC is always implicitly added to the flags.
@see wxShell(), wxProcess, @ref page_samples_exec,
wxLaunchDefaultApplication(), wxLaunchDefaultBrowser()
@header{wx/utils.h}
+
+ @beginWxPerlOnly
+ This function is called @c Wx::ExecuteStdoutStderr: it only takes the
+ @a command argument, and returns a 3-element list (@c status, @c output,
+ @c errors), where @c output and @c errors are array references.
+ @endWxPerlOnly
*/
long wxExecute(const wxString& command, wxArrayString& output,
wxArrayString& errors, int flags = 0);
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