How to apply VCL Styles to DLL-based forms in Inno Setup for uninstall? Cannot Import dll

Question

I\'m trying to add VCL styles (Inno Setup 5.5.6 (a)) for my installer. Style load correctly during the installation, but when I try to uninstall I get an error

Answer 1

You are not specifying a path to the uninstall copy of the VclStylesInno.dll.

This is the correct way:

procedure LoadVCLStyle_UnInstall(VClStyleFile: String); 
  external 'LoadVCLStyleA@{#VCLStylesSkinPath}\VclStylesInno.dll stdcall uninstallonly';

Next time, just follow the official instructions for uninstalling the VCL Styles for Inno Setup.

For more details and maybe even a better solution than the official one, see also Load external DLL for uninstall process in Inno Setup.