by Ron van Tilburg (11 Submissions)
Category: Graphics
Compatability: Visual Basic 3.0
Difficulty: Advanced
Date Added: Wed 3rd February 2021
Rating: 
(12 Votes)
Ever saved a JPG or GIF you loaded into your App and then looked at the result? - this will fix that problem. This submission features capture of any GDI object on your app with a hDC (say Form or PictureBox), lets you do some simple image processing on it (eg. Flip or Resize), then allows you to colormap it, dither it and save it as a BMP or a GIF. Yes a GIF! Entirely coded in VB and presented as a DLL with extensive demo program, this could be the beginning of a great togetherware gfx processor. Contains OctTree color quantization and Remapping to MS,New or Fixed colormaps, with or without Dithering. Serious bug or idea submissions (with explain and code snippets) welcome.
Inputs
any GDI object that owns a Display Device Context (that excludes the Printer.Object sorry)
Assumes
Requires areference from TESTRVTVBIMG to RVTVBIMG and the COMDLG32.OCX component (which you should have)
Download RVTVBIMG (292 KB)
VBcoders