Well, creating DirectShow filters can be real pain at times especially Source filter. When I needed a source filter to generate my own images, I looked at the Ball source filter in DirectShow documentation but it was useless for me because I needed to generate my own image using my own painting. So, here it is.



This filter lets you create your own DC and do all the painting in that DC. Everything painted on the DC is delivered to the downstream filters until finally renderer filters render the RGB data.



The filter is based on CSourceStream to create the output pin and deliver the data, and CSource to create the source filter.