Yes ffmpeg certainly does support alpha channel in a video file. Not all codecs in ffmpeg seem to support alpha yet tho. Motion PNG in a .MOV file is one good combination for alpha. To encode/import images with alpha to a video with alpha try: ffmpeg -i %d.png -vcodec png z.mov Quicktime will play that. … Read more
I am not sure that a view with alpha 0.0 is still drawn. Check the documentation library: Hiding Views To hide a view visually, you can either set its hidden property to YES or change its alpha property to 0.0. A hidden view does not receive touch events from the system. However, hidden views do … Read more
See the Android Color resource documentation for reference. Basically you have the option to set the transparency (opacity) and the color either directly in the layout or using resources references. The hex value that you set it to is composed of 3 to 4 parts: Alpha (opacity), i’ll refer to that as aa Red, i’ll … Read more
HEXA – #RRGGBBAA There’s a relatively new way of doing transparency, it’s called HEXA (HEX + Alpha). It takes in 8 digits instead of 6. The last pair is Alpha. So the pattern of pairs is #RRGGBBAA. Having 4 digits also works: #RGBA I am not sure about its browser support for now but, you … Read more
You can change the background color in Inkscape by changing the document properties (in the File menu). In particular, you can check ‘Checkerboard background’ to show the checkerboard if the background is set to transparent.
I use button {text-indent:-9999px;} * html button{font-size:0;display:block;line-height:0} /* ie6 */ *+html button{font-size:0;display:block;line-height:0} /* ie7 */
<SeekBar …. android:splitTrack=”false” />
I was able to do exactly what I wanted by using the code from Part 1 and Part 2 of this series: Displaying a Splash Screen with C++ Part 1: Creating a HBITMAP archive Part 2: Displaying the window archive Those blog posts are talking about displaying a splash screen in Win32 C++, but it … Read more
It’s definitely possible. Using filters, sample: img { -webkit-filter: drop-shadow(5px 5px 5px #222); filter: drop-shadow(5px 5px 5px #222); }
This is tricky in Matplotlib… you have to use a string “None” instead of the value None, then you can just do: plt.plot(x,y2, ‘o’, ms=14, markerfacecolor=”None”, markeredgecolor=”red”, markeredgewidth=5)