A simple screen test has gone from over 1mb as a bitmap to around 6kb when saved to PNG using this approach. This is done using the TBitmapCodecManager class. SaveToStream and TBitmapCodecManagerīitmap.SaveToStream doesn’t expose the CodexManager in the same way as it is available automatically with the SaveToFile option so takes a little more work to get a compressed image into the memory stream. Personally I would use PNG as the JPG formats are around the same size on some test I’ve run, but produce a better quality of image, especially when grabbing screenshots. This works really well with even more extensions supported. SaveToFileĬreating a PNG, JPG/JPEG is as simple as calling the Bitmap.SaveToFile with the correct file extension. Thankfully FireMonkey has a really easy to use CodecManager that allows you to SaveToFile or SaveToStream and convert to PNG or JPG across all platforms (which are vastly smaller in size).

If you want to send an image via Stream using LiveBindings or want to save an Image to disk or into a database on a device with limited storage however, they are quite large. You can use LoadFromFile() and SaveToFile() for simple file loading/saving, and Assign() to/from other TGraphic classes.In FireMonkey, Bitmap is the common currency for working with images. TWICImage is used very similarly to the TBitmap. If your application is expected to run apart from these requirements, then you will need to recognize this yourself and handle your imaging differently. IMPORTANT: TWICImage is only available on Windows XP SP3 or higher operating systems and relies on DirectX runtime. The formats which are supported depend on the formats which are registered inside of Windows.

It wraps the functionality of Microsoft's WIC image. WIC Image stands for Windows Imaging Component. This class, based on a TGraphic (just like a TBitmap), allows you to load virtually any type of image file. The question is - how to load any format of image into a TBitmap?ĭelphi VCL's Graphics unit contains another class called TWICImage. The TBitmap is widely used as the most standard graphic for performing any type of imaging in Delphi. It is rather common that developers wish to load various types of files into a TBitmap for manipulation, such as JPEG, PNG, or TIFF.

Timage png delphi