Tk_SetWindowVisual(3tk)

✨ Tk_SetWindowVisual ✨

okay bestie, so this is a page from the Tk Library Procedures manual — the Tk_SetWindowVisual(3tk) one 💅 — and it's literally about changing how a window looks at the X level. sit down, hydrate, let's go 🫶

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🌸 NAME 🌸

Tk_SetWindowVisual — change visual characteristics of window ✨

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🎀 SYNOPSIS 🎀

#include <tk.h>

int
Tk_SetWindowVisual(tkwin, visual, depth, colormap)

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💖 ARGUMENTS 💖

• Tk_Window tkwin (in) — the token for your window, your lil window ID, the main character's name tag 🪪
• Visual *visual (in) — the new visual type you want tkwin to use 👀
• int depth (in) — how many bits per pixel you're craving for tkwin 🔢
• Colormap colormap (in) — the new colormap for tkwin, and ngl it must be compatible with visual and depth — like they have to be a matching set, no mix-and-match 🎨

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🦋 DESCRIPTION 🦋

so when Tk creates a new window, it just hands it the default visual characteristics for its screen — that's the visual, the depth, and the colormap, all three, no thoughts head empty 🌈

Tk_SetWindowVisual is the function you call to change them. iconic. but here's the tea: 🍵

Tk_SetWindowVisual must be called before the window has actually been created in X. Like, before Tk_MapWindow or Tk_MakeWindowExist has been invoked for the window. no cap, if you're late you're late 😭

the safest thing — and bestie, we love safe — is to call Tk_SetWindowVisual immediately after calling Tk_CreateWindow. like right after, don't even breathe 💨

and what happens if tkwin has already been created before you call Tk_SetWindowVisual? okay so:

• it returns 0 and does not make any changes 💀 (yeah. nothing. zero. ghosted.)
• otherwise it returns 1 to signify that the operation completed successfully ✅

also, huge note 📝: do not call Tk_SetWindowVisual if all you want is to change a window's colormap without touching its visual or depth. that's not this function's job!! call Tk_SetWindowColormap instead, she's the one for that, respect her lane 💅

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👑 KEYWORDS 👑

colormap, depth, visual — that's the whole vibe check 🧚

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mwah 💜 that's the page!! this one's from the Tk Library Procedures manual, version 4.0, and yes it's literally the Tk_SetWindowVisual(3tk) page — slay, go forth and set those window visuals responsibly, bestie 🎀✨