VC interface library collection)

Guitoolkit (open-source, similar to Visual Studio 2003 style)

Http://www.beyondata.com/default.htm

Gardenui (free of charge, interface effect is good, XML, code interface separation)

Http://www.gardenui.com/

Cjlib (open-source, free, Unicode encoding, is the predecessor of Xtreme toolkit, but Xtreme toolkit is charged)

Http://www.codejock.com/

Libuidk (partially free, not open source, good effect, suitable for textures)

Http://www.iuishop.com/download.htm

Bcgcontrolbar (charged, the interface feels similar to Office)

Http://www.bcgsoft.com

Skin ++ (billing, nice interface, as can be seen from it)

Http://www.uipower.com/

Skinmagic (charged, looks like Office)

Http://appspeed.com/html/download.html

Activeskin (unknown)

Http://www.softshape.com/software/develop/

Sygui (billing, similar to Office)

Http://www.sygui.com/

Generally, go to the following two websites to find the desired controls. For details, refer:

Http://www.vckbase.com/code/

Http://www.codeproject.com