如何在Delphi中的BitBtn上放置GIF / PNG / ...图像？

Question

I'm using Delphi 2007. How can I put a GIF/PNG image on a BitBtn component? (Preferably, with alpha transparency supported)

Answer 1

PngComponents pack has a component named PngBitBtn wich can display correctly PNG's with alpha transparency. They are somewhat old, but they can be installed under Delphi 2007 with a little work.

Answer 2

Use a graphics program like Photoshop (or something less expensive) to convert the images to bitmaps. BitBtns don't accept GIF or PNG images.

Answer 3

Delphi 2009完全支持PNG支持。有一个名为GraphicEx的免费软件包（许可为MPL 1.1）允许您在设计时/运行时加载图像，但是您不会在按钮上获得alpha混合透明度德尔福2007。

Answer 4

PNGimage, which is included in Delphi 2009k, should do the job. If we can find it.