i want to use a bitmap file from my computer in c++.
i just dont know the code.
can anyone help????

Maybe you are trying to do graphics ??? .. then i suggest allegro C/C++ graphics lib as it is both a beginners lib and efficient .
Once installed, Do something like ...

BITMAP *bmp = loadbmp("name_of_bmp_img", 0 );
BITMAP *buffer = creat_bitmap(SCREEN_W, SCREEN_H);
clear_to_color(screen, makecol(255,255,255));
draw_sprite(buffer, bmp, bmp->w, bmp->h);
draw_sprite(screen, buffer, 0, 0 );      // double buffering

P:S ... this is just a code sample ... it should display your bitmap image on the screen..
Purpose of that code is just to show you how easy ( pretty much ) it is with the allegro library ... compared to other sophisticated and much more complex libraries like OPENGL ... Another library you should consider is the SDL lib ....

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