x11

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How can I draw an image with alpha on a transparent canvas on Xorg?

I\'m using Linux and I would like to create a transparent window and load in it an image with an alpha channel, so that the windows below show through the alpha channel.What\'s the simpl开发者_运维知识[详细]

2023-04-13 02:42 分类：问答
How to prevent reparented window blocking X session?

I reparent an external window into Qt application (XReparentWindow, XMapRaised, XMoveResizeWindow). It works, but when I click to that reparented window the system locks (no mouse 开发者_如何学Goor ke[详细]

2023-04-13 02:22 分类：问答
Generating Mouse Scroll Event in Linux

I having small doubt in generating mouse event from C program. I am writing a program to generate mouse events from a C program in linux. I[详细]

2023-04-12 01:40 分类：问答
Capturing events in X11 even after the loss of focus

I am trying to develop an application which responds to multiple digital pens (IRIS Pens) so that if any of the pen writes on paper; I relay the output to a single screen. Thus making a multi-input wh[详细]

2023-04-11 02:12 分类：问答
LockDisplay: Unable to load X11 when using JNA to lock display

I am trying to lock the display (disallowing the user to use the keyboard and mouse) in Java, using X11 through JNA.[详细]

2023-04-10 19:14 分类：问答
qt menu item does not show

I\'m writing a window manager and I\'m stuck with a problem on Qt4 menu bar elements. When I first click on the menu item, it shows correctly, then I close it and try to open it again but it does not[详细]

2023-04-10 10:07 分类：问答
embedding an X11 widget in Cocoa

I\'m working on pythonocc, which exposes the OpenCasCade API in a pythonic manner. OCC is coupled to either the windows or X11 gui en开发者_运维问答vironment.[详细]

2023-04-09 22:02 分类：问答
Xvfb + firefox: how to know firefox finishes rendering?

I\'m trying to grab web thumbnails by using X server to run Firefox in headless (Xvfb) X11. I am looking for a way to know when Firefox FINIS开发者_如何学编程HED rendering and then I can use image p[详细]

2023-04-09 11:50 分类：问答
Python Xlib CreateNotify - Catch new window

Why this code doesn\'t work? When I start new program (e.g. lxappearance) nothing happens, but if开发者_如何学Go I do something in program\'s window, code works[详细]

2023-04-06 16:16 分类：问答
Qt 4.7+Xlib crash on QWidget::winId() method

Sorry for my english, but I have the next problem. I am writing a window manager using Qt 4.7 and Xlib. I have class Manager that inherits QApplication and reimplemented method X11EventFilter in it. I[详细]

2023-04-06 06:16 分类：问答