(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_CreateProcessWithProperties

Create a new process with the specified properties.

Header File

Syntax

SDL_Process* SDL_CreateProcessWithProperties(SDL_PropertiesID props);

Function Parameters

SDL_PropertiesID

props

the properties to use.

Return Value

(SDL_Process *) Returns the newly created and running process, or NULL if the process couldn't be created.

Remarks

These are the supported properties:

SDL_PROP_PROCESS_CREATE_ARGS_POINTER: an array of strings containing the program to run, any arguments, and a NULL pointer, e.g. const char *args[] = { "myprogram", "argument", NULL }. This is a required property.
SDL_PROP_PROCESS_CREATE_ENVIRONMENT_POINTER: an SDL_Environment pointer. If this property is set, it will be the entire environment for the process, otherwise the current environment is used.
SDL_PROP_PROCESS_CREATE_STDIN_NUMBER: an SDL_ProcessIO value describing where standard input for the process comes from, defaults to SDL_PROCESS_STDIO_NULL.
SDL_PROP_PROCESS_CREATE_STDIN_POINTER: an SDL_IOStream pointer used for standard input when SDL_PROP_PROCESS_CREATE_STDIN_NUMBER is set to SDL_PROCESS_STDIO_REDIRECT.
SDL_PROP_PROCESS_CREATE_STDOUT_NUMBER: an SDL_ProcessIO value describing where standard output for the process goes go, defaults to SDL_PROCESS_STDIO_INHERITED.
SDL_PROP_PROCESS_CREATE_STDOUT_POINTER: an SDL_IOStream pointer used for standard output when SDL_PROP_PROCESS_CREATE_STDOUT_NUMBER is set to SDL_PROCESS_STDIO_REDIRECT.
SDL_PROP_PROCESS_CREATE_STDERR_NUMBER: an SDL_ProcessIO value describing where standard error for the process goes go, defaults to SDL_PROCESS_STDIO_INHERITED.
SDL_PROP_PROCESS_CREATE_STDERR_POINTER: an SDL_IOStream pointer used for standard error when SDL_PROP_PROCESS_CREATE_STDERR_NUMBER is set to SDL_PROCESS_STDIO_REDIRECT.
SDL_PROP_PROCESS_CREATE_STDERR_TO_STDOUT_BOOLEAN: true if the error output of the process should be redirected into the standard output of the process. This property has no effect if SDL_PROP_PROCESS_CREATE_STDERR_NUMBER is set.
SDL_PROP_PROCESS_CREATE_BACKGROUND_BOOLEAN: true if the process should run in the background. In this case the default input and output is SDL_PROCESS_STDIO_NULL and the exitcode of the process is not available, and will always be 0.

On POSIX platforms, wait() and waitpid(-1, ...) should not be called, and SIGCHLD should not be ignored or handled because those would prevent SDL from properly tracking the lifetime of the underlying process. You should use SDL_WaitProcess() instead.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.