is there a schedule for supporting DevExpresss VCL v19.1.2?
I wanted to test the current TRichView version and installed the trial version, but it only supports DevExpress VCL v18.2.2 apparently, so during the installation I got this:
In <TRichView Dir>\ThirdParty\DevExpress\Source\cxTRichView.pas, change the line
{$IFDEF DELPHI6}
to
{$IFDEF RICHVIEWDEF6}
Save this unit.
Run "Install TRichView in Delphi IDE" shortcut in Windows Start menu.
Yes, the change is in this place.
DevExpress removed "DELPHI6" define from their INC file, so "Variants" is not included in "uses", but it is necessary to compile.
So I suggested to replace it with the define from TRichView's INC file, RICHVIEWDEF6.
If it does not help, open the package in RAD Studio, compile and tell me which errors are displayed.
For Delphi 10.3, the package is <TRichView Dir>\ThirdParty\DevExpress\Source\cxRVEditorsD10_3.dproj
After modifying cxTRichView.pas as you suggested, I tried to compile the cxRVEditorsD10_3.dproj package and an error got displayed, that the file cxVer.inc wasn't found.
It is located in several subfolders of the DevExpess installation folder, one of them being "..\DevExpressVCL\Library\Sources", but when DevExpress VCL was installed, only "..\DevExpressVCL\Library\RS26" was added to IDE library paths. Once I added "..\DevExpressVCL\Library\Sources" to library paths as well, I was able to compile and install the packages.