| | General changes | Examples |
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Constant names updated |
vbObjectError became VB6.Constants.vbObjectError; vbNullChar became ControlChars.NullChar
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Variable type declarations |
Integer became Short; Long became Integer; Variant became Object |
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Sub syntax |
Inserted parentheses around Sub parameter list |
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Error objects (Err and Error) |
Referenced Err.Number explicitly and called ErrorToString function in place of Error call |
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Explicit default property refs |
Converted txtSetting to txtSetting.Text |
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String functions |
Converted function names: Trim$ became Trim; Left$ became Left |
| Main form changes | Examples |
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Form definitions
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Added class definitions for frmSettings, Sub Main, constructor and destructor, component declarations and initialization, and a Region definition name "Windows Form Designer generated code" |
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Control arrays |
Replaced control arrays with Compatibility.VB6.TextBoxArray, CheckBoxArray, and ButtonArray; access to controls uses arrays
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Constant definitions |
Added variable type Short to numeric Constant declarations |
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Form properties |
Added VB6.TwipsToPixelsX/Y and VB6.PixelsToTwipsX/Y around references to forms' Top and Left properties
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Event routines |
New parameters eventSender and eventArgs |
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New events |
Replaced Form_QueryUnload with Form_Closing |
| Class cSetting changes | Examples |
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Enum references |
Fully qualified enum references (such as csModes.csModeRegistry) |
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Obsolete functions |
Replaced IsMissing on Variant with IsNothing on Object; Len() became System.Runtime.InteropServices.Marshal.SizeOf
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New object model |
Replaced App.Path with System.Winforms.Application.StartUpPath & App.EXEName with VB6.GetExeName
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Fixed-length strings |
In GetSettingStr method, sBuf declared as VB6.FixedLengthString |
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Property syntax |
SaveMode property syntax changes for Get/Set procedures |