Help me translate these callback functions

[ghost]

Extracted from the header iupcbs.h of Iup:

/** \file
 * \brief Contains all function pointer typedefs.
 *
 * See Copyright Notice in "iup.h"
 */
 
#ifndef __IUPCBS_H 
#define __IUPCBS_H

struct _cdCanvas;

typedef int  (*IFidle)(void);  /* idle */
typedef void (*IFentry)(void);  /* entry */

typedef void (*IFi)(int); /* globalentermodal_cb, globalleavemodal_cb,  */
typedef void (*IFs)(char*);  /* openurl_cb */
typedef void (*IFii)(int, int); /* globalkeypress_cb */
typedef void (*IFiis)(int, int, char*);  /* globalmotion_cb, openfiles_cb */
typedef void (*IFiiiis)(int, int, int, int, char*);  /* globalbutton_cb */
typedef void (*IFfiis)(float,int,int,char*);  /* globalwheel_cb */
typedef void (*IFvs)(void*, char*);  /* handleadd_cb, handleremove_cb, imagecreate_cb, imagedestroy_cb */

typedef int (*IFn)(Ihandle*);  /* default definition, same as Icallback */
typedef int (*IFni)(Ihandle*, int);   /* k_any, show_cb, toggle_action, spin_cb, branchopen_cb, branchclose_cb, executeleaf_cb, showrename_cb, rightclick_cb, extended_cb, height_cb, width_cb */
typedef int (*IFnii)(Ihandle*, int, int);  /* resize_cb, caret_cb, matrix_mousemove_cb, enteritem_cb, leaveitem_cb, scrolltop_cb, dropcheck_cb, selection_cb, select_cb, switch_cb, scrolling_cb, vspan_cb, hspan_cb */
typedef int (*IFniii)(Ihandle*, int, int, int); /* trayclick_cb, edition_cb */
typedef int (*IFniiii)(Ihandle*, int, int, int, int); /* dragdrop_cb */
typedef int (*IFniiiiiiC)(Ihandle*, int, int, int, int, int, int, struct _cdCanvas*);  /* draw_cb */
typedef int (*IFniiiiii)(Ihandle*, int, int, int, int, int, int);  /* OLD draw_cb */
typedef int (*IFnsidv)(Ihandle*, char*, int, double, void*); /* postmessage_cb */

typedef int (*IFnff)(Ihandle*, float, float);    /* canvas_action */
typedef int (*IFniff)(Ihandle*,int,float,float);  /* scroll_cb */
typedef int (*IFnfiis)(Ihandle*,float,int,int,char*);  /* wheel_cb */

typedef int (*IFnsVi)(Ihandle*, char*, void*, int);  /* dragdata_cb */
typedef int (*IFnsViii)(Ihandle*, char*, void*, int, int, int);  /* dropdata_cb */
typedef int (*IFnsiii)(Ihandle*, char*, int, int, int);  /* dropfiles_cb */
typedef int (*IFnssi)(Ihandle*, char*, char*, int);  /* dragfilecreatename_cb */

typedef int (*IFnnii)(Ihandle*, Ihandle*, int, int); /* drop_cb */
typedef int (*IFnn)(Ihandle*, Ihandle*); /* savemarkers_cb, restoremarkers_cb */
typedef int (*IFnnn)(Ihandle*, Ihandle*, Ihandle*); /* tabchange_cb */
typedef int (*IFnss)(Ihandle*, char *, char *);  /* file_cb */
typedef int (*IFns)(Ihandle*, char *);  /* multiselect_cb */
typedef int (*IFnsi)(Ihandle*, char *, int);  /* copydata_cb */
typedef int (*IFnis)(Ihandle*, int, char *);  /* text_action, multiline_action, edit_cb, rename_cb */
typedef int (*IFnsii)(Ihandle*, char*, int, int);  /* list_action */
typedef int (*IFniis)(Ihandle*, int, int, char*);  /* motion_cb, click_cb, value_edit_cb */
typedef int (*IFniiis)(Ihandle*, int, int, int, char*);  /* touch_cb, dblclick_cb */
typedef int (*IFniiiis)(Ihandle*, int, int, int, int, char*);  /* button_cb, matrix_action, mousemotion_cb */
typedef int (*IFniiiiiis)(Ihandle*, int, int, int, int, int, int, char*);  /* mouseclick_cb */

typedef int (*IFnIi)(Ihandle*, int*, int); /* multiselection_cb, multiunselection_cb */
typedef int (*IFnd)(Ihandle*, double);  /* mousemove_cb, button_press_cb, button_release_cb */
typedef int (*IFniiIII)(Ihandle*, int, int, int*, int*, int*); /* fgcolor_cb, bgcolor_cb */
typedef int (*IFniinsii)(Ihandle*, int, int, Ihandle*, char*, int, int); /* dropselect_cb */
typedef int (*IFnccc)(Ihandle*, unsigned char, unsigned char, unsigned char); /* drag_cb, change_cb */
typedef int (*IFniIIII)(Ihandle*, int, int*, int*, int*, int*); /* multitouch_cb */

typedef int (*IFnC)(Ihandle*, struct _cdCanvas*); /* postdraw_cb, predraw_cb */
typedef int (*IFniidd)(Ihandle*, int, int, double, double); /* delete_cb */
typedef int (*IFniiddi)(Ihandle*, int, int, double, double, int); /* select_cb */
typedef int (*IFniiddiddi)(Ihandle*, int, int, double, double, int, double, double, int); /* clicksegment_cb */
typedef int (*IFniidds)(Ihandle*, int, int, double, double, char*);  /* plotbutton_cb */
typedef int (*IFndds)(Ihandle*, double, double, char*);    /* plotmotion_cb */
typedef int (*IFnssds)(Ihandle*, char*, char*, double, char*); /* plottickformat_cb */
typedef int (*IFnni)(Ihandle*, Ihandle*, int);

typedef char* (*sIFnii)(Ihandle*, int, int);  /* value_cb, font_cb */
typedef char* (*sIFni)(Ihandle*, int);  /* cell_cb */
typedef char* (*sIFniis)(Ihandle*, int, int, char*);  /* translatevalue_cb */

typedef double (*dIFnii)(Ihandle*, int, int);  /* numericgetvalue_cb */
typedef int    (*IFniid)(Ihandle*, int, int, double);  /* numericsetvalue_cb */

typedef void (*IFniiv)(Ihandle*, int, int, void*);  /* android_onactivityresult_cb */

#endif

Too complex for me!

[ghost]

struct _cdCanvas()

alias cdCanvas = _cdCanvas

alias IFidle = func() int
alias IFentry = func() void

alias IFi = func(int) void
alias IFs = func(*ubyte) void
alias IFii = func(int, int) void
alias IFiis = func(int, int, *ubyte) void
alias IFiiiis = func(int, int, int, int, *ubyte) void
alias IFfiis = func(float, int, int, *ubyte) void
alias IFvs = func(ptr, *ubyte) void

alias IFn = func(*Ihandle) int
alias IFni = func(*Ihandle, int) int
alias IFnii = func(*Ihandle, int, int) int
alias IFniii = func(*Ihandle, int, int, int) int
alias IFniiii = func(*Ihandle, int, int, int, int) int
alias IFniiiiiiC = func(*Ihandle, int, int, int, int, int, int, *cdCanvas) int
alias IFniiiiii = func(*Ihandle, int, int, int, int, int, int) int
alias IFnsidv = func(*Ihandle, *ubyte, int, double, ptr) int

alias IFnff = func(*Ihandle, float, float) int
alias IFniff = func(*Ihandle, int, float, float) int
alias IFnfiis = func(*Ihandle, float, int, int, *ubyte) int

alias IFnsVi = func(*Ihandle, *ubyte, ptr, int) int
alias IFnsViii = func(*Ihandle, *ubyte, ptr, int, int, int) int
alias IFnsiii = func(*Ihandle, *ubyte, int, int, int) int
alias IFnssi = func(*Ihandle, *ubyte, *ubyte, int) int

alias IFnnii = func(*Ihandle, *Ihandle, int, int) int
alias IFnn = func(*Ihandle, *Ihandle) int
alias IFnnn = func(*Ihandle, *Ihandle, *Ihandle) int
alias IFnss = func(*Ihandle, *ubyte, *ubyte) int
alias IFns = func(*Ihandle, *ubyte) int
alias IFnsi = func(*Ihandle, *ubyte, int) int
alias IFnis = func(*Ihandle, int, *ubyte) int
alias IFnsii = func(*Ihandle, *ubyte, int, int) int
alias IFniis = func(*Ihandle, int, int, *ubyte) int
alias IFniiis = func(*Ihandle, int, int, int, *ubyte) int
alias IFniiiis = func(*Ihandle, int, int, int, int, *ubyte) int
alias IFniiiiiis = func(*Ihandle, int, int, int, int, int, int, *ubyte) int

alias IFnIi = func(*Ihandle, *int, int) int
alias IFnd = func(*Ihandle, double) int
alias IFniiIII = func(*Ihandle, int, int, *int, *int, *int) int
alias IFniinsii = func(*Ihandle, int, int, *Ihandle, *ubyte, int, int) int
alias IFnccc = func(*Ihandle, ubyte, ubyte, ubyte) int
alias IFniIIII = func(*Ihandle, int, *int, *int, *int, *int) int

alias IFnC = func(*Ihandle, *cdCanvas) int
alias IFniidd = func(*Ihandle, int, int, double, double) int
alias IFniiddi = func(*Ihandle, int, int, double, double, int) int
alias IFniiddiddi = func(*Ihandle, int, int, double, double, int, double, double, int) int
alias IFniidds = func(*Ihandle, int, int, double, double, *ubyte) int
alias IFndds = func(*Ihandle, double, double, *ubyte) int
alias IFnssds = func(*Ihandle, *ubyte, *ubyte, double, *ubyte) int
alias IFnni = func(*Ihandle, *Ihandle, int) int

alias sIFnii = func(*Ihandle, int, int) *ubyte
alias sIFni = func(*Ihandle, int) *ubyte
alias sIFniis = func(*Ihandle, int, int, *ubyte) *ubyte

alias dIFnii = func(*Ihandle, int, int) double
alias IFniid = func(*Ihandle, int, int, double) int

alias IFniiv = func(*Ihandle, int, int, ptr) void

[IsaacShelton]

Yeah looks like you got it! 👍