Ok, I'm currently moving from Dev-c++ to MS Visual C++ 2005 express edition. I've got it set up, with the microsoft platform SDK, and then followed this to install allegro:
http://wiki.allegro.cc/VisualCExpress2005
Anyway, I've got allegro sorted ok but when I declare a bitmap pointer using:
BITMAP *a = load_bitmap( "a.bmp", NULL);
This gives the error "This application has requested the runtime to terminate it in an unusual way."
Please help...
You need to check your return values:
BITMAP *a = load_bitmap( "a.bmp", NULL); if(!a) { set_gfx_mode(GFX_TEXT, 0, 0, 0, 0); allegro_message("Bitmap failed to load!"); exit(1); }
Once you do that, put a.bmp into the Debug or Release folder of your project directory.
]]>Ok, this is weird but it says
"syntax error : 'if'
syntax error : missing ';' before '{'
'{' : missing function header (old-style formal list?)"
Thats only shown on the code you just posted.
Oh, of course. You can't load a bitmap on the global scope, you have to do it inside of a function. The reason is because allegro_init hasn't been called yet on the global scope, nor has set_color_depth or set_gfx_mode. So:
| 1 | BITMAP* a = NULL; |
| 2 | |
| 3 | int main(int argc, char* argv[]) |
| 4 | { |
| 5 | allegro_init(); |
| 6 | set_color_depth(32); |
| 7 | set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0); |
| 8 | |
| 9 | a = load_bitmap( "a.bmp", NULL); |
| 10 | if(!a) |
| 11 | { |
| 12 | set_gfx_mode(GFX_TEXT, 0, 0, 0, 0); |
| 13 | allegro_message("Bitmap failed to load!"); |
| 14 | return 1; |
| 15 | } |
| 16 | |
| 17 | destroy_bitmap(a); |
| 18 | return 0; |
| 19 | } |
]]>
Ok, I'm currently moving from Dev-c++ to MS Visual C++ 2005 express edition.
Why?
]]>Because Dev-C++ is a bad IDE, MSVS has a great debugger, and it's free?
]]>
Oh, of course. You can't load a bitmap on the global scope, you have to do it inside of a function. The reason is because allegro_init hasn't been called yet on the global scope, nor has set_color_depth or set_gfx_mode. So:
BITMAP* a = NULL;
int main(int argc, char* argv[])
{
allegro_init();
set_color_depth(32);
set_gfx_mode(GFX_AUTODETECT_WINDOWED, 640, 480, 0, 0);
a = load_bitmap( "a.bmp", NULL);
if(!a)
{
set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
allegro_message("Bitmap failed to load!");
return 1;
}
destroy_bitmap(a);
return 0;
}
I can't belive I missed that. Thanks! BTW: MSVS IS free but requires registration. It's more stable, easier to use(for example on really long peices of code, voids can be minimized) and the debugger really is supreme.
]]>It requires registration? I never had to register for my copies...
]]>