mask

How do you get host's broadcast address of the default network adapter? C#

半城伤御伤魂 提交于 2020-01-02 03:13:10
问题 Let's say that I want to send an udp message to every host in my subnet (and then receive an udp message from any host in my subnet): at the moment I do: IPAddress broadcast = IPAddress.Parse("192.168.1.255"); but of course I want this to be done dinamically in the event that the subnet is different from 192.168.1/24. I've tried with: IPAddress broadcast = IPAddress.Broadcast; but IPAddress.Broadcast represents "255.255.255.255" which can't be used to send messages (it throws an exception)..

PorterDuff masking leaves opaque black background

淺唱寂寞╮ 提交于 2020-01-01 19:20:55
问题 I'm trying to mask a FrameLayout with a mask defined as a nine patch. However, although it works fine on 5.0+ on older versions (such as 4.4.4), the patch leaves an opaque black background. Is there anything that can be done to avoid this other than drawing to an off screen bitmap before rendering to the screen or reverting to software layers? public class MaskedLayout extends FrameLayout { private final static PorterDuffXfermode DST_IN = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);

problems with 'mask' in firefox

本小妞迷上赌 提交于 2020-01-01 18:19:25
问题 I'm at the end of my rope here. This 'mask' should work right? Well, I'm beginning to doubt. My example is at http://50.63.191.172/mask.html . I really don't know what else I could try. I do have some constraints: I would like to have the svg external to any html page / css stylesheet because it will be used from multiple places. I would like to have svg non size predetermined, because I don't want to have multiple versions for various sizes; there should be only one, so that it can be cached

Masking multiple columns on a pandas dataframe in python

浪子不回头ぞ 提交于 2020-01-01 05:51:06
问题 i am looking to apply multiply masks on each column of a pandas dataset (respectively to it's properties) in python. In the next step i want to find (a) row(s) in the dataframe that fits all conditions . therefore i have : df Out[27]: DE FL GA IA ID 0 0 1 0 0 0 1 1 0 1 0 1 2 0 0 1 0 0 3 0 1 0 0 0 4 0 0 0 0 0 mask_list = [] for i in range(0,5): if i % 2==0: mask_list.append(df[[i]]>0) else: mask_list.append(df[[i]]<1) concat_frame = pa.DataFrame() for mask in mask_list: concat_frame =pa.concat

Masking multiple columns on a pandas dataframe in python

删除回忆录丶 提交于 2020-01-01 05:51:05
问题 i am looking to apply multiply masks on each column of a pandas dataset (respectively to it's properties) in python. In the next step i want to find (a) row(s) in the dataframe that fits all conditions . therefore i have : df Out[27]: DE FL GA IA ID 0 0 1 0 0 0 1 1 0 1 0 1 2 0 0 1 0 0 3 0 1 0 0 0 4 0 0 0 0 0 mask_list = [] for i in range(0,5): if i % 2==0: mask_list.append(df[[i]]>0) else: mask_list.append(df[[i]]<1) concat_frame = pa.DataFrame() for mask in mask_list: concat_frame =pa.concat

Win Forms text box masks

佐手、 提交于 2020-01-01 05:27:26
问题 How can I put mask on win form text box so that it allows only numbers? And how it works for another masks data, phone zip etc. I am using Visual Studio 2008 C# Thanks. 回答1: Do you want to prevent input that isn't allowed or validate the input before it is possible to proceed? The former could confuse users when they press keys but nothing happens. It is usually better to show their keypresses but display a warning that the input is currently invalid. It's probably also quite complicated to

Format DateTime in C#

可紊 提交于 2019-12-31 01:56:07
问题 how can I format date to display in the following format 03-Feb-2011 I tried this statement but it did not work properly string.Format(visitDate.Value.ToShortDateString(), "dd-MMM-yyyy") 回答1: visitDate.Value.ToString("dd-MMM-yyyy"); Assuming visitDate is a DateTime. 回答2: you have to use: visitDate.Value.ToString("dd-MMM-yyyy"); 回答3: string.format is valid but the parameter order you use are invalid: DateTime? visitDate = null; System.Diagnostics.Debug.WriteLine(visitDate == null ? "" : String

CSS: Gradient text colour?

社会主义新天地 提交于 2019-12-31 01:49:05
问题 I'm trying to get some text to have a gradient colour, but I haven't a clue how. I'm trying to get it like this: The only thing I have tried is -webkit-mask , but I couldn't get that working how I wanted it to. The other thing would be -webkit-gradient in the color property - is that possible? Cross browser compatibility is fairly important, but not the end of the world. I'd prefer the text to be a solid colour in IE than to convert the entire thing into an image (there is quite a bit of text

How to apply half circle mask to an ImageView

妖精的绣舞 提交于 2019-12-30 07:15:14
问题 I have an image, a half circle frame image and I need to put that image inside this frame. But I need to apply mask to my image so it is only displayed inside frame. For example this is my image: And my desired result should be like that: The red frame also an image view which inside is transparent. How can I achieve this in Android? 回答1: There's a great tutorial on Styling Android blog in four parts that explains how you can achieve this. Edit: I've edited the code in part two of the

How to apply half circle mask to an ImageView

北战南征 提交于 2019-12-30 07:15:07
问题 I have an image, a half circle frame image and I need to put that image inside this frame. But I need to apply mask to my image so it is only displayed inside frame. For example this is my image: And my desired result should be like that: The red frame also an image view which inside is transparent. How can I achieve this in Android? 回答1: There's a great tutorial on Styling Android blog in four parts that explains how you can achieve this. Edit: I've edited the code in part two of the