activex - How do I get a transparent windows dialog and drawing primitives to remain on top of a window that is drawing streaming video? -


I have an activeX control which has a window in which the video is being streamed, I have a different dialog Created in another window that I have made in a transparent or semi-transparent manner (i.e. using the Setlaired Window Properties (...) with layered property (for alpha blending of dialogue) or setting transparent property).

In addition to this, I have tried to use different methods so that we can try to get the window to the dialogue, but nobody at the top of the streaming video window has worked if I have a dialogue But if there is a button or draw on the transparent surface with the lineto ((...), then they do not stay on top of the video. I want to use SetWindowPos to affect the two-window z-order Also tried to change communication window properties such as "TopMost", but there was no gain.

Has anyone attempted to do something like a veiled window over the streaming video To order and z-order to always paint the front window after streaming video?

Update: 02/10/10 - Tried using the WS_EX_LAYERED property with WindowAttributes on the SetLine ...) using LWA_COLORKEY And what was achieved was achieved. Since the layered property can not be used with the WS_CHILD style, this solution brings some necessary management of the overlay window position in relation to the window with the video. In addition, there are some other disparities which I am trying to finish. For example, when an ActiveX control window is embedded with video in an AdWords tab and I switch to another tab on the overlay window, then on the new tab (when the WS_POPUP style is used) remains on top. Still checking that there will be alternate methods to deal with this other, the switch will determine the window and visibility visibility.

"post-text" itemprop = "text">

It may not be possible, many video output codes use hardware overlays, so if your window is in front, overlay or So it will not work, or your pixels will not come at all.

Hardware overlay allows video drawing code to present frames in a format other than the current display format, which can save a lot of CPU and memory bandwidth.

In my experience, overlays are usually in YUV format rather than RGB because many video compression formats are based on YUV, therefore video hardware is getting some pixels from the YUV image and not with screen buffer, So you can not influence these pixels until you are included in the video stream's rendering code path.


Comments

Post a Comment

Popular posts from this blog

sql - dynamically varied number of conditions in the 'where' statement using LINQ -

I am using my first project LINQ (in mvc), so maybe there's something very simple that I remember. However, a day of searching and experimenting does not work, so it works. I am trying to write a LINQ query (Linux to SQL) in which in many cases where the statement is different from an OR or an AND. We do not know how many conditions are going in the query till runtime. This search is for filter control, where the user can choose multiple criteria for filtering. Select from table where table.col = 1 or table.col = 2 or table.col = 7 .... 'Other number of conditions Before I just create the SQL query as a string, while looping over all the situations. However, it seems that there should be a good way to do this in LINQ. I tried to use Expression trees, but they had a second thought for this moment on my head, where the lambda function was to be executed inside the statement such as: values ​​for matchingRows = matchingRows for each value Where (function (row) row.c...
Read more

asp.net mvc - Dynamically Generated Ajax.BeginForm -

I have a problem with ASP.NET MVC Ajax forms. I generate many Ajax form in a table such as: & Lt; Input type = "submit" name = "activity" value = "add activity" / & gt; & Lt;%}% & gt; & Lt; / TD & gt; & Lt; / TR & gt; & Lt;%}% & gt; So far so good. When I post one of those forms, it gives a partial view in a div, and in this new partial view a new Ajax Beginnform (which is not in Genesis form) This second Ajax Beginnorf is exactly like the ones I got on the table, but when I post it, I do not get the "Ajax Post", but a normal post that sends me to a new page, I do not know whether the two Ajax forms What is the reason for the difference between, why is it the "dynamically generated" Ajax form behaves like a normal HTML form? By the way, I know that I can do it in different ways using javascript, but I would like to understand whether it can only be done using MVC helplars and Ajax lib...
Read more

Debug on symbian -

I am using trk for phone debug This works well for the Holorld project But when I start the project in phone debug mode 1) the load failed 2) TrkProtocolPlugin: to target the specified file Failure (please verify If any body understands what problem I am experiencing, then this problem helps me Pre-release If the application has the privileges assigned (with the appropriate certificate) itemprop = "text" > In your case, I will check: / li> If there is no conflict of application ID with any other application of device If there are problematic commands in the installation package (for example copy copy for non-accessible directories)
Read more