BmpRgn is a *FREEWARE* unit that allows you to create forms with transparent areas based on a bitmap that you provide. The bitmap is converted to a form region, where only the interior pixels are displayed. The transparent border remains

Delphi:ICO转换位图程序，Delphi源码实现，实现图片文件格式转换，程序小巧，代码简单，可作为初学者学习的范例，能适时的预览转换效果，源码在D7下正确编译。 -Delphi: ICO convert bitmap program, Delphi source code, achieving image file format conversion, program size, the code is simple, can be used as examples for begin

Demo of how to convert a bitmap to a cursor in Delphi