inno-setup - Inno Setup - 如何显示透明的 PNG 图像？

Question

我想在欢迎页面上显示它。

这怎么可能？

Answer 1

在 5.5.7 更新(2015 年 12 月 28 日)中，实现了 32 位 BMP 和 Alpha channel 功能。

The WizardImageFile and WizardSmallImageFile [Setup] section directives now support 32 bit bitmap files with an alpha channel. Use the new WizardImageAlphaFormat [Setup] section directive to specify if the bitmap file has its red, green and blue channel values premultiplied with the alpha channel value or not. Contributed by Honza Rameš via GitHub.

和

Pascal Scripting changes:
Class TBitmapImage now supports 32 bit bitmap files with an alpha channel. Make sure to set the Bitmap.AlphaFormat property before loading the bitmap file.

http://www.jrsoftware.org/files/is5-whatsnew.htm