[center]For some reason saving a screenshot after using packfile_password[/center]
seems to be causing the saved bmp to formatted in a way that can't be read by
ms paint. Here is some source code
1 | #include "allegro.h" |
2 | #include "game.h" |
3 | |
4 | DATAFILE *datafile; |
5 | BITMAP *buffer; |
6 | BITMAP *bmp; |
7 | PALETTE pal; |
8 | char buf[256]; |
9 | |
10 | int main(int argc, char *argv[]) |
11 | { |
12 | allegro_init(); |
13 | install_keyboard(); |
14 | set_gfx_mode(GFX_AUTODETECT, 640, 480, 0, 0); |
15 | |
16 | packfile_password("123456"); |
17 | replace_filename(buf, argv[0], "game.dat", sizeof(buf)); |
18 | datafile = load_datafile(buf); |
19 | buffer = create_bitmap(640, 480); |
20 | bmp = create_bitmap(640, 480); |
21 | set_pallete(datafile[color].dat); |
22 | clear(buffer); |
23 | |
24 | blit(datafile[bitmap].dat, buffer, 0, 0, 0, 0, 640, 480); |
25 | blit(buffer, screen, 0, 0, 0, 0, 640, 480); |
26 | |
27 | readkey(); |
28 | |
29 | get_palette(pal); |
30 | bmp = create_sub_bitmap(screen, 0, 0, 640, 480); |
31 | save_bmp("saved.bmp", bmp, pal); |
32 | unload_datafile(datafile); |
33 | allegro_exit(); |
34 | return 0; |
35 | } |
36 | END_OF_MAIN() |
Note #2: as explained above, the password is used for all read/write operations on files, including for several functions of the library that operate on files without explicitly using packfiles (e.g. load_bitmap()). The unencrypted mode is mandatory in order for those functions to work. Therefore remember to call packfile_password(NULL) before using them if you previously changed the password. As a rule of thumb, always call packfile_password(NULL) when you are done with operations on packfiles. The only exception to this is custom packfiles created with pack_fopen_vtable().
Thanks Matthew
Ralph