// Command exectuion
void Exec_Command(Application_Links *app, int command_id)
int Exec_System_Command(Application_Links *app, View_Summary *view, Buffer_Identifier buffer, char *path, int path_len, char *command, int command_len, unsigned int flags)

// File system navigation
int Directory_Get_Hot(Application_Links *app, char *out, int capacity)
int Get_4ed_Path(Application_Links *app, char *out, int capacity)
int File_Exists(Application_Links *app, char *filename, int len)
int Directory_CD(Application_Links *app, char *dir, int *len, int capacity, char *rel_path, int rel_len)
File_List Get_File_List(Application_Links *app, char *dir, int len)
void Free_File_List(Application_Links *app, File_List list)

// Direct buffer manipulation
Buffer_Summary Get_Buffer_First(Application_Links *app)
void Get_Buffer_Next(Application_Links *app, Buffer_Summary *buffer)

Buffer_Summary Get_Buffer(Application_Links *app, int index)
Buffer_Summary Get_Parameter_Buffer(Application_Links *app, int param_index)
Buffer_Summary Get_Buffer_By_Name(Application_Links *app, char *filename, int len)

int Refresh_Buffer(Application_Links *app, Buffer_Summary *buffer)
int Buffer_Read_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *out)
int Buffer_Replace_Range(Application_Links *app, Buffer_Summary *buffer, int start, int end, char *str, int len)
//int Buffer_Set_Pos(Application_Links *app, Buffer_Summary *buffer, int pos)

int Buffer_Seek(Application_Links *app, Buffer_Summary *buffer, int start_pos, int seek_forward, unsigned int flags)
int Buffer_Set_Setting(Application_Links *app, Buffer_Summary *buffer, int setting, int value)

// View manipulation
View_Summary Get_View_First(Application_Links *app)
void Get_View_Next(Application_Links *app, View_Summary *view)

View_Summary Get_View(Application_Links *app, int index)
View_Summary Get_Active_View(Application_Links *app)

int Refresh_View(Application_Links *app, View_Summary *view)

int View_Auto_Tab(Application_Links *app, View_Summary *view, int start, int end, int tab_width, unsigned int flags)
Full_Cursor View_Compute_Cursor(Application_Links *app, View_Summary *view, Buffer_Seek seek)
int View_Set_Cursor(Application_Links *app, View_Summary *view, Buffer_Seek seek, int set_preferred_x)
int View_Set_Mark(Application_Links *app, View_Summary *view, Buffer_Seek seek)
int View_Set_Highlight(Application_Links *app, View_Summary *view, int start, int end, int turn_on)
int View_Set_Buffer(Application_Links *app, View_Summary *view, int buffer_id)

int View_Open_File(Application_Links *app, View_Summary *view, char *filename, int filename_len, int do_in_background)
int View_Kill_File(Application_Links *app, View_Summary *view, Buffer_Identifier buffer)

// Directly get user input
User_Input Get_User_Input(Application_Links *app, unsigned int get_type, unsigned int abort_type)
User_Input Get_Command_Input(Application_Links *app)
Event_Message Get_Event_Message(Application_Links *app)
Mouse_State Get_Mouse_State(Application_Links *app)

// Queries and information display
int Start_Query_Bar(Application_Links *app, Query_Bar *bar, unsigned int flags)
void End_Query_Bar(Application_Links *app, Query_Bar *bar, unsigned int flags)
void Print_Message(Application_Links *app, char *string, int len)
//GUI_Functions* Get_GUI_Functions(Application_Links *app)
//GUI* Get_GUI(Application_Links *app, int view_id)

// Color settings
void Change_Theme(Application_Links *app, char *name, int len)
void Change_Font(Application_Links *app, char *name, int len)
void Set_Theme_Colors(Application_Links *app, Theme_Color *colors, int count)