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Win32 tricks revive custom Windows shapes amid Electron bloat

Hacker News •
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A wave of homogenous Windows apps built on Electron, Tauri or similar wrappers has left many developers nostalgic for the lean, message‑driven programs of the Win32 era. The author points out that a simple Notepad clone written in pure C consumes roughly 1.8 MB, whereas its Electron counterpart can approach 50 MB of RAM. This disparity fuels a push to revisit low‑level Windows programming.

The post’s GitHub repo demonstrates three compact samples that bypass heavyweight frameworks. The first creates an elliptical window by calling SetWindowRgn on a border‑less HWND, then fakes title‑bar dragging with a WM_NCLBUTTONDOWN message. The second reads a bitmap, converts non‑transparent pixels into region rectangles, and uses that mask to sculpt arbitrary shapes directly from image data.

A third example leverages layered windows and per‑pixel alpha to animate an 8‑bit mascot, updating the visual each timer tick with GDI+. While these tricks prove that Win32 API still offers unrestricted control, they also expose the hidden cost: developers must reimplement dragging, resizing, DPI scaling and other niceties that modern frameworks handle automatically. Consequently, quirky windows remain a novelty rather than a mainstream design choice.