Hi Itamar,

Either use hbwin.hbc to link in hbwin module. Or add 
libpng lib to the liblist manually. (first option strong 
preferred, to avoid any similar problems in the future)

Also see:
   contrib\hbwin\hbwin.hbc

Brgds,
Viktor

On 2010 Jan 26, at 01:03, Itamar Lins wrote:

> Hi!
> See this:
> * $Id: ChangeLog 13709 2010-01-25 20:24:23Z vouchcac $
> 
> hbmk2: Processando arquivo de configura?Æo: D:\DEV\HARBOUR\BIN\hbmk.cfg
> hbmk2: Linkando... farol.exe
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_get_io_ptr referenced in function "void __cdecl hb_png_read_func(struct 
> png_struct_def *,unsigned char *,unsigned int)" 
> (?hb_png_read_func@@YAXPAUpng_struct_def@@p...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_get_IHDR referenced in function "int __cdecl hb_png_get_param(unsigned 
> char const *,unsigned long,int *,int *,int *,int *)" 
> (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_read_info referenced in function "int __cdecl hb_png_get_param(unsigned 
> char const *,unsigned long,int *,int *,int *,int *)" 
> (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_set_read_fn referenced in function "int __cdecl 
> hb_png_get_param(unsigned char const *,unsigned long,int *,int *,int *,int 
> *)" (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_set_sig_bytes referenced in function "int __cdecl 
> hb_png_get_param(unsigned char const *,unsigned long,int *,int *,int *,int 
> *)" (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_destroy_read_struct referenced in function "int __cdecl 
> hb_png_get_param(unsigned char const *,unsigned long,int *,int *,int *,int 
> *)" (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_create_info_struct referenced in function "int __cdecl 
> hb_png_get_param(unsigned char const *,unsigned long,int *,int *,int *,int 
> *)" (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_create_read_struct referenced in function "int __cdecl 
> hb_png_get_param(unsigned char const *,unsigned long,int *,int *,int *,int 
> *)" (?hb_png_get_param@@yahpbekpah...@z)
> hbwin.lib(win_bmp.obj) : error LNK2019: unresolved external symbol 
> _png_sig_cmp referenced in function "int __cdecl hb_png_get_param(unsigned 
> char const *,unsigned long,int *,int *,int *,int *)" 
> (?hb_png_get_param@@yahpbekpah...@z)
> 
> MSVC express, XP SP3
> 
> Best regards,
> Itamar M. Lins Jr. 
> 
> 
> 
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