Reekdeb Posted September 30, 2011 Share Posted September 30, 2011 Hi everyone, I'm totally new to AutoIt. Here is my script : Dim $defaultIcon = "" If $defaultIcon <> NUL Then RegWrite ( "HKEY_CLASSES_ROOT\epubfile\DefaulfIcon", "", "REG_SZ", @WorkingDir & "\" & $defaultIcon) Else RegWrite ( "HKEY_CLASSES_ROOT\epubfile\DefaulfIcon", "", "REG_SZ", @WorkingDir & "\cr3.exe,0") EndIf I can't compare $defaultIcon with NUL. Here I want my script to compare if the value of $defaultIcon is not null then it will set the default Icon of epubfile to specified icon file in $defaultIcon, otherwise it will set to exe file. Please help. Thanks. Link to comment Share on other sites More sharing options...
nitekram Posted September 30, 2011 Share Posted September 30, 2011 Maybe this will help? If $defaultIcon <> '' Then 2¢ All by me:"Sometimes you have to go back to where you started, to get to where you want to go." "Everybody catches up with everyone, eventually" "As you teach others, you are really teaching yourself." From my dad "Do not worry about yesterday, as the only thing that you can control is tomorrow." WIKI | Tabs; | Arrays; | Strings | Wiki Arrays | How to ask a Question | Forum Search | FAQ | Tutorials | Original FAQ | ONLINE HELP | UDF's Wiki | AutoIt PDF AutoIt Snippets | Multple Guis | Interrupting a running function | Another Send StringRegExp | StringRegExp Help | RegEXTester | REG TUTOR | Reg TUTOT 2 AutoItSetOption | Macros | AutoIt Snippets | Wrapper | Autoit Docs SCITE | SciteJump | BB | MyTopics | Programming | UDFs | AutoIt 123 | UDFs Form | UDF Learning to script | Tutorials | Documentation | IE.AU3 | Games? | FreeSoftware | Path_Online | Core Language Programming Tips Excel Changes ControlHover.UDF GDI_Plus Draw_On_Screen GDI Basics GDI_More_Basics GDI Rotate GDI Graph GDI CheckExistingItems GDI Trajectory Replace $ghGDIPDll with $__g_hGDIPDll DLL 101? Array via Object GDI Swimlane GDI Plus French 101 Site GDI Examples UEZ GDI Basic Clock GDI Detection Ternary operator Link to comment Share on other sites More sharing options...
JohnOne Posted September 30, 2011 Share Posted September 30, 2011 Why compare it to NULL when there is no NULL type in autoit? Probably compare to zero or empty string if you must AutoIt Absolute Beginners Require a serial Pause Script Video Tutorials by Morthawt ipify Monkey's are, like, natures humans. Link to comment Share on other sites More sharing options...
KaFu Posted September 30, 2011 Share Posted September 30, 2011 Dim $defaultIcon = "" If $defaultIcon Then RegWrite("HKEY_CLASSES_ROOT\epubfile\DefaulfIcon", "", "REG_SZ", @WorkingDir & "\" & $defaultIcon) Else RegWrite("HKEY_CLASSES_ROOT\epubfile\DefaulfIcon", "", "REG_SZ", @WorkingDir & "\cr3.exe,0") EndIf OS: Win10-22H2 - 64bit - German, AutoIt Version: 3.3.16.1, AutoIt Editor: SciTE, Website: https://funk.eu AMT - Auto-Movie-Thumbnailer (2022-Nov-26) BIC - Batch-Image-Cropper (2023-Apr-01) COP - Color Picker (2009-May-21)HMW - Hide my Windows (2018-Sep-16) HRC - HotKey Resolution Changer (2012-May-16) ICU - Icon Configuration Utility (2018-Sep-16) SMF - Search my Files (2023-Jun-03) - THE file info and duplicates search tool SSD - Set Sound Device (2017-Sep-16) Link to comment Share on other sites More sharing options...
Reekdeb Posted September 30, 2011 Author Share Posted September 30, 2011 Thanks everyone for your reply. I've compared to a empty string now. It works. ... If $defaultIcon <> "" Then ... @KaFu doesn't work. Getting errors. Link to comment Share on other sites More sharing options...
Spiff59 Posted September 30, 2011 Share Posted September 30, 2011 Just curious..."\DefaulfIcon" ? Link to comment Share on other sites More sharing options...
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