grmili.blogg.se - Windows screen print selection

#Windows screen print selection how to#
#Windows screen print selection update#
#Windows screen print selection windows#

#Windows screen print selection how to#

Nobody wants to spend hours working out how to use the functions for a simple screenshot.įeatures: Some screenshot methods are very basic and will just copy a screenshot to your clipboard for you to paste and save in another program, but others are full-scale programs that provide editing tools, multiple sharing options and screenshot modes including scrolling screenshots. If you're still not sure about the preferred method, here are some simple factors to keep in mind:Įase-of-use: Ensure that the tool is simple and straightforward. You can search in this scope of to perform something.We hope that this guide has given you enough ways to take a partial screenshot to choose your favorite. To solve further problems, remember that pywin32 wraps the Win32 API. The easiest way to draw a rectangle with a XOR operation is DrawFocusRect(). XOR is a logical operation which restores a value if applied twice with another value.

You draw your rectangle performing a XOR operation between its pixels and the pixels to be overwritten before drawing the next rectangle, you redraw the previous rectangle again with the XOR operation.

Before you draw your rectangle, you store the pixels to be overwritten in memory before drawing the next rectangle, you restore the previous pixels and so on.

The tricky part of drawing a rectangle is restoring the pixels where the previous rectangle was drawn.

On mouse button up, store the second edge.

#Windows screen print selection update#

On mouse move, update the rectangle selection with coords as second edge.On mouse button down, store coords as first edge.Hm.SubscribeMouseAllButtonsDown(onMouseDown)įinally to draw a rectangle selection, you may have to process this way: # Here, the beginning of your rectangle drawing

To handle mouse events: # Callback function when the event is fired Win32gui.DeleteObject(screenshot.GetHandle()) # copy the screen into our memory device context Screenshot.CreateCompatibleBitmap(img_dc, width, height) Img_dc = win32ui.CreateDCFromHandle(desktop_dc) # grab a handle to the main desktop windowĭesktop_dc = win32gui.GetWindowDC(hdesktop) To get a screen shot area ( source): import win32guiĭef saveScreenShot(x,y,width,height,path):

#Windows screen print selection windows#

To handle the mouse, use the PyHook library, a wrapper of hooks in the Windows Hooking API.To access screen resources, use pywin32 ( reference) a Python extension for the Win32 API.If there are some bugs, let me know to fix them) (DISCLAIMER: I cannot test right now the samples. This is just the first step (from the user's perspective) of what my application does, and I've already implemented most of what happens after that (about 3000 LoC right now), so I'm looking for the most straightforward way to implement this so I can wrap up the project and make it usable. I'm looking for a solution that works directly on the screen without requiring a screenshot be taken in advance, since my application is supposed to be used alongside the game you're playing without interruption.

Rectprops = dict(facecolor='blue', edgecolor = 'black', alpha=0.5, fill=True)) #ref(best?):Įclick.ydata,erelease.ydata=erelease.ydata,eclick.ydataĮclick.xdata,erelease.xdata=erelease.xdata,eclick.xdata This is a random attempt based on another SO answer I found, but it only works with a pre-saved image. I don't even know which is the simplest for my use case, or which libraries allow for this kind of general functionality. I've run across possible solutions using OpenCV, Matplotlib, pygame, tkiner, and Qt, but the first 2 only work in specified windows, and I don't know if the latter two work on the screen in general (and I'm not about to try to learn all about all of these different libraries without knowing if I'm on the right track or if this is even possible). So, I'm stuck with the area selection step. It will then take a screenshot somehow, using maybe PIL or PyAutoGUI after it gets the desired coordinates. anything being displayed, no matter what program, whether browser, steam, or an emulator). It's supposed to allow you to select a region of a video game screen (i.e. I'm creating a desktop tool that allows you to select portions of the screen, similar to how Capture2Text's area selection works. E.g., ideally you run the program, and then wherever you click/hold/drag, a semi-transparent, light blue box will show up, and python will register the coordinates (which it needs to save for later). How do you use python 3 on Windows to create and get the coordinates of a basic selection box? I need it to work anywhere on the screen/in any window.