Hello friends, during getting a property I get an typconflict.
[code_begin] #lang racket/base (require ffi/unsafe ffi/unsafe/com) (define MSIFILE "D:\\_Setups\\7z920-x64.msi") (define INSTALLER (com-create-instance "WindowsInstaller.Installer")) (define DB (com-invoke INSTALLER "OpenDatabase" MSIFILE 0)) (define VIEW (com-invoke DB "OpenView" "SELECT Name FROM _Tables")) (define RECORD (com-invoke VIEW "Execute")) (set! RECORD (com-invoke VIEW "Fetch")) ;(com-get-property RECORD "FieldCount") (com-get-property RECORD "IsNull") ;(define s (com-get-property RECORD "StringData")) [code_end] The "FieldCount" Property is getting 1 and "IsNull" or "StringData" gives: com-get-property: failed for "IsNull" (80020005; Typkonflikt.) or com-get-property: failed for "StringData" (80020005; Typkonflikt.) so whats wrong here? The MDSN says it is an property an getting property on com in racket is trivial like above code shows, I think. Yours, ____________________ Racket Users list: http://lists.racket-lang.org/users
