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CartoonDragon

@extended (error handling)

3 posts in this topic

Hello,

I've run in to a problem with DriveMapAdd sometimes failing with the Error=1 Extended=0 and the drive not mapping.

So to give the user a better error description i found the command  _WinAPI_FormatMessage which should give me wonderfull Windows messages, but it only returns a single letter.

I found a wouldbe working code sniplet i could change to fit my needs, how ever it doesn't work for me as it is and even when i change it so that it doesn't produce errors it still doesn't work.

It seems to have worked for the guy right here: '?do=embed' frameborder='0' data-embedContent>>

Unedited:

#include <WinAPI.au3>

$n = 53; Error code
MsgBox(64, "Test", _WinAPI_GetErrorMessage($n))

Func _WinAPI_GetErrorMessage($iErrorNum)
    Local $tText

    $tText = DllStructCreate("char Text[4096]")
    _WinAPI_FormatMessage($__WINAPCONSTANT_FORMAT_MESSAGE_FROM_SYSTEM, 0, $iErrorNum, 0, DllStructGetPtr($tText), 4096, 0)
    Return DllStructGetData($tText, "Text")
EndFunc  ;==>_WinAPI_GetErrorMessage

My attempt:

#include <WinAPI.au3>

Local Const $FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000

$n = 53; Error code
MsgBox(64, "Test", _WinAPI_GetErrorMessage($n))

Func _WinAPI_GetErrorMessage($iErrorNum)
    Local $tText

    $tText = DllStructCreate("char Text[4096]")
    $ptext = DllStructGetPtr($tText)
    _WinAPI_FormatMessage($FORMAT_MESSAGE_FROM_SYSTEM, 0, $iErrorNum, 0, $ptext, 4096, 0)
    Return DllStructGetData($tText, "Text")
EndFunc  ;==>_WinAPI_GetErrorMessage

Any help would be greatly apprisiated

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How about this?
 

#include <WinAPIdiag.au3>

$n = 53; Error code
MsgBox(64, "Test", _WinAPI_GetErrorMessage($n))
1 person likes this

If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

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That was simply beautiful, thanks a lot BrewManNH!

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