override_config_data(3alleg4) Allegro manual override_config_data(3alleg4)NAME
override_config_data - Specifies a block of data containing config overrides. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void override_config_data(const char *data, int length);
DESCRIPTION
Version of override_config_file() which uses a block of data that has already been read into memory. The length of the block has to be
specified in bytes. Example:
/* Force German as system language, Spanish keyboard map. */
const char *override_data = "[system]
"
"language=DE
"
"keyboard=ES";
override_config_data(override_data, ustrsize(override_data));
Note that this function and override_config_file() are mutually exclusive, i.e. calling one will cancel the effects of the other.
SEE ALSO override_config_file(3alleg4), set_config_data(3alleg4)Allegro version 4.4.2 override_config_data(3alleg4)
Check Out this Related Man Page
override_config_file(3alleg4) Allegro manual override_config_file(3alleg4)NAME
override_config_file - Specifies a file containing config overrides. Allegro game programming library.
SYNOPSIS
#include <allegro.h>
void override_config_file(const char *filename);
DESCRIPTION
Specifies a file containing config overrides. These settings will be used in addition to the parameters in the main config file, and where
a variable is present in both files this version will take priority. This can be used by application programmers to override some of the
config settings from their code, while still leaving the main config file free for the end user to customise. For example, you could spec-
ify a particular sample frequency and IBK instrument file, but the user could still use an `allegro.cfg' file to specify the port settings
and irq numbers.
The override config file will not only take precedence when reading, but will also be used for storing values. When you are done with using
the override config file, you can call override_config_file with a NULL parameter, so config data will be directly read from the current
config file again.
Note: The override file is completely independent from the current configuration. You can e.g. call set_config_file, and the override file
will still be active. Also the flush_config_file function will only affect the current config file (which can be changed with set_con-
fig_file), never the overriding one specified with this function. The modified override config is written back to disk whenever you call
override_config_file.
Example:
override_config_file("my.cfg");
/* This will read from my.cfg, and if it doesn't find a
* setting, will read from the current config file instead.
*/
language = get_config_string("system", "language", NULL);
/* This will always write to my.cfg, no matter if the
* settings is already present or not.
*/
set_config_string("system", "language", "RU");
/* This forces the changed setting to be written back to
* disk. Else it is written back at the next call to
* override_config_file, or when Allegro shuts down.
*/
override_config_file(NULL);
Note that this function and override_config_data() are mutually exclusive, i.e. calling one will cancel the effects of the other.
SEE ALSO override_config_data(3alleg4), set_config_file(3alleg4)Allegro version 4.4.2 override_config_file(3alleg4)
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