how do i find out what the numbers returned from my api call mean

[aturner]

how do i find out what the numbers returned from my api call mean

[cookre]

If you have VC, look at:

<VisStudioDir>\<VCDir eg VC98>\include\winerror.h

If you don't have it, search the Microsoft site for winerror.h - you should find everything you need. Doing a search on 'win32 error' will also provide help.

[plenderj]

Well they wouldnt necessarily be errors, so if you just use the Find function in windows to search through *.h (include files) in VC++'s include folder you should find them ...

[aturner]

i'm not getting anywhere with this, so if someone can find out for me i would apreciate it.

running regqueryinfokey i get a return of 87

if anyone can find out what that means ....

[plenderj]

This might be it :

// MessageId: ERROR_INVALID_PARAMETER
//
// MessageText:
//
//  The parameter is incorrect.
//
#define ERROR_INVALID_PARAMETER          87L    // dderror

An invalid parameter im assuming

[aturner]

i was hoping it would be more helpfull, but thanks for the help.

thankfully

[JamesM]

Try this:

Declare Function FormatMessage Lib "kernel32" Alias "FormatMessageA" _
(ByVal dwFlags As Long, lpSource As Any, ByVal dwMessageId As Long, ByVal dwLanguageId As Long, _
ByVal lpBuffer As String, ByVal nSize As Long, Arguments As Long) As Long
  
Public Const FORMAT_MESSAGE_ALLOCATE_BUFFER = &H100
Public Const FORMAT_MESSAGE_ARGUMENT_ARRAY = &H2000
Public Const FORMAT_MESSAGE_FROM_HMODULE = &H800
Public Const FORMAT_MESSAGE_FROM_STRING = &H400
Public Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000
Public Const FORMAT_MESSAGE_IGNORE_INSERTS = &H200
Public Const FORMAT_MESSAGE_MAX_WIDTH_MASK = &HFF
Public Const LANG_USER_DEFAULT = &H400&

Function GetLastErrorStr(dwErrCode As Long) As String
  Static sMsgBuf As String * 257, dwLen As Long
  dwLen = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM _
  Or FORMAT_MESSAGE_IGNORE_INSERTS Or FORMAT_MESSAGE_MAX_WIDTH_MASK, ByVal 0&, _
  dwErrCode, LANG_USER_DEFAULT, ByVal sMsgBuf, 256&, 0&)
  If dwLen Then GetLastErrorStr = Left$(sMsgBuf, dwLen)
End Function

Usage:

Dim x
x = GetLastErrorStr(Val(Text1.Text))
Label1.Caption = x