GDIplus would save the subject file as BitDepth 8 and ColorType 3, not ColorType 0. GDIplus would save it as 8-BPP, if we pass an 8-BPP DIB. I doubt GDI+ will save such an image other than 32bpp. ![]() (i) to view the original 16-bit pixel color values of a 16-bit PNG file (in this case, I maintain the decompressed, defiltered and deinterlaced IDAT, show 8-bit pixel colors on screen, then basing on the user's mouse pointer position retrieve the original 16-bit color value in IDAT and monitor it on screen), (ii) to save a PNG file at a specific Color Type and Bit Depth. (It is a practice of my program that when no chessboard background is in use, the designated transparent color should be availed on the screen, so that if the program user wants to designate a different color, he/she is not deprived of any color in the original file.)įor PNG, I don't use GDIplus I only use my own class, because I need to obtain/process data that GDIplus cannot afford me, e.g. I was wondering how does a GDIplus user establish the designated transparent color in a case like this one. So, short of parsing the PNG file/stream manually and extracting the tRNS tag. That property only exists for GIF files, not PNG. ![]() I doubt GDI+ will save such an image other than 32bpp.įYI: That PNG only contains a few colors: &HFF000000, &HFF808080, &HFFFFFFFF, &H00808080 (transparent). Of course there will only be one 32bpp pixel color with a zero alpha-byte. In this case, you'll probably need to build the palette manually (if wanted). This means GDI+ will report the image as 32bpp not paletted/indexed. I don't think the tRNS tag is going to do you much good because GDI+ should load these as 32bpp because there is no palette in the PNG & transparency exists. Otherwise, short of parsing the PNG file/stream manually and extracting the tRNS tag, another solution would be to iterate thru the pixel data. You can get all properties exposed by the metadata that GDI+ provides and maybe one of them offers what you are looking for? Worth a shotĮdited: That property only exists for GIF files, not PNG. This may be the constant you want, retrieved via: GdipGetPropertyItem. For example, if the grayscale level 0x0001 is specified to be transparent, it would be incorrect to compare only the high-order byte and decide that 0x0002 is also transparent. Although decoders may drop the low-order byte of the samples for display, this must not occur until after the data has been tested for transparency. Note: when dealing with 16-bit grayscale or truecolor data, it is important to compare both bytes of the sample values to determine whether a pixel is transparent. ![]() For color type 0 (grayscale), the tRNS chunk contains a single gray level value, stored in the format:
0 Comments
![]() Each year the regional organizations meet before the national ushers convention. The Silver State Ushers were first organized in 1998 by Willis Warren of Second Baptist Church. In 1919, Elijah Alexander Hamilton founded the National United Church Ushers Association in Philadelphia, Pa. Everything we do in the church is decent and in order, and we learn techniques because what we do is a silent ministry.” ![]() We like to give the biblical foundation, even though you get it in church, but we still do it through the school of ushering. Everyone that comes into the doors of the church is not necessarily saved. You have to get a little scripture in you to deal with roadblocks, obstacles and people. When you want to become a certified usher, you first are taught the basics, that includes hand signals. “All persons within the church come into contact first with the usher,” said Brass, “so we have to make sure we have the right attitude, spirit and a big smile.”Īccording to Brass, “The significance of wearing the white gloves in the church is visibility - for ushers’ hand signals to be seen. Their responsibilities encompass a variety of duties that prepare churchgoers for the day’s service. Always recognizable with their matching uniforms and trademark white gloves, ushers are an integral part of the black church. The church usher is, for many, the first person a visitor sees upon entering the church house. “All of these … organizations are under the umbrella of the National United Church Ushers Association of America Incorporated.” ![]() “The conference will consist of ushers from five states that include Arizona, California, Colorado, Nevada and Washington,” said Brass, who is president of the ushers ministry at Victory Missionary Baptist Church. Headed by president Lena Brass, the 40-member Silver State Ushers are set to host the second annual Western Region Ushers Conference April 14-16 at the Sunset Station hotel and casino. ![]()
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |