Free pascal resize image3/7/2024 ![]() Lazarus 2.3+, for example, has the images/general_purpose folder in its installation directory which is full of free png images designed for typical applications (thanks to Roland Hahn.). Navigate to the folder in which your images are stored (The png image format is highly recommended).Click on the Add more resolutions button.In the next step you add the images themselves.The 16x16 size does not need to be added by the New resolutions button because it is already known from the Imagelist.Width and. Click on the New resolutions button and specify each of these extra sizes (only the width must be entered).In the case that some controls require a larger image size at 96pp, say 32x32, you should also prepare the imagelist for these scaled sizes, i.e.This is used at 96ppi screen resolution (in Windows: 100%). Decide on the basic image size, usually 16x16.In the first step you must tell the Imagelist which image sizes are needed.How to create a multi-resolution ImageList in the application Remedy: use AddSliced (if the image consists of several icons to be added) or AddSlice (if one image from a custom rect has to be added - also rect outside the image is supported).Reason: Image List now supports multiple resolutions.New behavior: the image is scaled to all resolutions in the image list.Old behavior: the image got sliced if too big or extended if too small.There are 2 demo applications in Lazarus sources:Ĭhanges affecting backwards compatibility Add method Set the Scaled property to True and the image list will automatically pick up the scaled image in your High-DPI aware LCL application (provided that the option "Use LCL Scaling" has been checked in the project options). Example: TToolBar.Images/ImageWidth, TListView.LargeImages/LargeImagesWidth. In Lazarus 1.9 the TImageList was rewritten to support multiple resolutions of one image.Įvery LCL control that supports an ImageList has now a new ImagesWidth property to decide what custom width at 96 PPI (100% scale) is to be used. Multiple-resolution TImageList in Lazarus 1.9 and newer 2 High-DPI alternative for Lazarus 1.8 and older: resize all images in TImageList.1.3 How to create a multi-resolution ImageList in the application.1.2 Changes affecting backwards compatibility.1 Multiple-resolution TImageList in Lazarus 1.9 and newer.
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