![]() ![]() ![]() If an app doesn’t indicate it supports High-DPI then it is treated as 96-DPI. Originally Windows monitors assumed monitors were 96 DPI (even though they were usually 72 PPI in reality.) Windows XP added GDI+ allowing resolution-independent text scaling, and Windows Vista added support for High-DPI displays, so more physical pixels could be used to display sharper text and more detailed images. ![]() As the screen gets larger, the DPI gets lower, unless you also increase the resolution.ĭPI = (sqrt(sqr(width)+sqr(height))/diagonal 27” or 68.58 cm), but we can use these numbers to calculate the DPI (see More on DPI and PPI below) with the good ol’ Pythagorean theorem. The library's source code can be downloaded from GitHub.Ĭopyright ©2010-2022 Angus Johnson - Image32 4.Often times when we talk about monitors we discuss resolution (e.g.1920×1080) and diagonal dimensions (e.g. These demonstrate some more complex features of the Image32 library. The Image32 ZIP package also contains an Examples folder with source code for a number of example applications. The remaining units, including Img32.Extra, Img32.Layers and Img32.Transform may be needed less frequently. While the Img32 unit contains the core of the Image32 library, several of the following units will also very likely be needed:, , and to access image files (or Img32.FMX in multi-device applications) Img32.Draw and Img32.Vector for line and polygon drawing and Img32.Text for text rendering. The Img32 unit contains TImage32, so this unit must be added to the 'uses' clause to access the library. As stated in Quick Start, the key element in this library is the TImage32 class which is required for all image rendering operations. Just about all the public structures and functions in the Image32 library are listed below. Image32 - A 2D Graphics Library for Delphi Developers Img32 Img32.Clipper Img32.CQ Img32.Draw Img32.Extra Img32.FMX Img32.Layers Img32.Resamplers Img32.Storage Img32.Text Img32.Transform Img32.Vector Examples Img32.Panels ![]()
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