I am now writing a image viewer, It is used for view thumbnails. As it is ugly, I decide to draw shadow round thumbnail. There is background color. I am using StretchDIBits to draw a shadow image at the location of thumbnail. However it is really annoying that it cover the background color... When the background is white, it looks perfe...
I'm looking after a way to AlphaBlend a child form, if possible using layered windows as there will be interactive controls behind it. The problem is I have a component in a regular TForm that paints multiple visual layers (drawings, pictures...). At some point I need to instantiate an editor control on this form (in-place), this contro...
I'm trying to write a fast transparency class in c#. How do I get PNG with transparency into GDI32 to use it with alphaBlend? I tried to put it directly via getHbitmap/selectObject, tried to paint it with setPixel on temporary DC, but all to no avail. ...
All my alpha bitmaps, created using CreateCompatibleBitmap(..), start to receive an error code 87 after someone signs in with Remote Desktop. I am assuming that this is because the resolution changed and I am using a device specific bitmap. I am wondering what the best route is to fix this issue without migrating to a device independen...