[Feature Request] Remove title bars from windows

[FrancisTheCat]

I think most people that use a wm dont like these annoying white bars, but you cant really turn them of, or can you (without just removing all decorations icluding the rounded corners)? I managed to write some Odin code to get rid of the on the few apps that I use that actually have them, however it would be really convenient to have this be feature of glaze, wich is a really good wm btw, big thanks to everyone who participates in this project. Anyway here is my code, you could probably use it as a starting point for a c# implemenation, or maybe this at least helps someone out. I would implement this myself, but Im just not good at c#.
Further reading:

• https://learn.microsoft.com/en-us/windows/apps/desktop/modernize/apply-rounded-corners
• https://learn.microsoft.com/en-us/windows/win32/winmsg/window-styles

package title_remover

import "core:fmt"
import "core:os"
import "core:runtime"
import "core:slice"
import "core:strings"

import win "core:sys/windows"

// if any title _CONTAINS_ one of these strings it will get its borders removed
MANAGE :: []string{"CactusViewer", "Minecraft"}

enum_windows_proc :: proc "stdcall" (hWnd: win.HWND, lParam: win.LPARAM) -> win.BOOL {
	context = runtime.default_context()

	handles := transmute(^[dynamic]win.HWND)lParam
	append(handles, hWnd)

	return true
}

main :: proc() {
	handles := make([dynamic]win.HWND)
	win.EnumWindows(enum_windows_proc, transmute(win.LPARAM)&handles)

	for handle in handles {
		str := make([]u16, 1024)

		n := win.GetWindowTextW(handle, raw_data(str), 1023)

		manageable := true

		title, _ := win.utf16_to_utf8(str[:n])

		if manageable {
			for m in MANAGE {
				if strings.contains(title, m) {
					remove_window_title_bar(handle)
					break
				}
			}
		}

	}
}

remove_window_title_bar :: proc(hWnd: win.HWND) -> bool {
	if hWnd == nil {
		return false
	}

	preference: i32 = 2
	result := win.DwmSetWindowAttribute(
		hWnd,
		auto_cast win.DWMWINDOWATTRIBUTE.DWMWA_WINDOW_CORNER_PREFERENCE,
		&preference,
		size_of(preference),
	)

	return(
		win.SUCCEEDED(result) &&
		win.SetWindowLongW(hWnd, win.GWL_STYLE, transmute(i32)win.WS_POPUPWINDOW) != 0 \
	)
}

PS: command: "resize borders 0px -7px -7px -7px", as a window rule in your config fixes the size of most windows without titlebars

[FrancisTheCat]

Got a kind of working solution! I packaged the above code into a somewhat useable cli app that you can use to remove titles from windows matching some title, classname or executable file name. I can now set an exec command and everything would work, if the args stayed lowercase. So I removed to .ToLowerInvariants() in the command parsing code, however I dont think thats a particularly good solution, because its still kind of hacky.

  - command: "exec 'Path/to/title_remover.exe' title regex Minecraft.*"
    match_title: "Minecraft.*"

[FrancisTheCat]

This is the result btw:

old:

new:

[FrancisTheCat]

Going to close this once this pr gets merged: #528

[JonasWischeropp]

I have created a new PR #735.
Thank you @FrancisTheCat for your work. It helped alot to implement it.

[FrancisTheCat]

I have created a new PR #735. Thank you @FrancisTheCat for your work. It helped alot to implement it.

Oh that's nice, glad to know it was useful to you

[github-actions]

🎉 This issue has been resolved in version 3.3.0 🎉

The release is available on GitHub release

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