bmp_write_line(3)

💖 bmp_write_line(3) — the Allegro manual, but make it make sense 💖

okay bestie, we're deep in the Allegro manual now, and this one is bmp_write_line(3) — part of the Allegro game programming library. yes, that Allegro. the game programming library. she's a classic, she's iconic, and she's about to hand you a raw pointer. let's go 🎀

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✨ NAME ✨

bmp_write_line — direct access bank switching line selection for writing. Allegro game programming library.

like, the whole vibe of this function in one line: you point at a line, and you write to it. periodt. 💅

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🦋 SYNOPSIS 🦋

#include <allegro.h>

unsigned long bmp_write_line(BITMAP *bmp, int line);

okay so look at that signature. she takes a BITMAP *bmp and an int line, and she hands you back an unsigned long. remember that. it matters. 💜

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🌸 DESCRIPTION 🌸

Selects the line of a bitmap that you are going to draw onto.

that's it. that's the whole function. she's not complicated, she's just specific. you tell her which bitmap (bmp) and which line (line), and she picks it out for you so you can go draw on it. main character energy honestly — she doesn't do the drawing, she just opens the door. 🚪✨

this is the direct access bank switching way of doing things, iykyk — you're getting your hands on the actual memory, not vibing through a helper function. lowkey powerful, highkey a responsibility. 🫶

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💅 RETURN VALUE 💅

Returns the address of the selected line for writing.

so yeah, you get back an address — an unsigned long that is literally where that line lives in memory, and it's yours to write into. no cap. 🔥

bestie warning: she's called bmp_write_line for a reason. this is the writing version. if you just wanna read, there's a whole other function for that, don't come for this one's job. 🙈

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🌈 SEE ALSO 🌈

• exflame(3)
• exlights(3)

go peek at those two examples if you want to see this whole direct-access thing in action. they ate, fr fr. 👑

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and that's the page!! brought to you by the Allegro manual, version 4.4.3, and this lil entry is bmp_write_line(3) — mwah, stan a bank-switching legend 💖✨🎀🦋🌸💅