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UndefineAllPreprocessorDefinitions Property

Visual Studio .NET 2003

Undefines all previously defined preprocessor values. Exposes the functionality of the compiler's /u option.

[Visual Basic .NET]
Public Property UndefineAllPreprocessorDefinitions() As Boolean
[Visual Basic 6]
Property Get UndefineAllPreprocessorDefinitions() As Boolean
Property Let UndefineAllPreprocessorDefinitions( _
   ByVal NewValue As Boolean _
) 
[C++]
HRESULT __stdcall get_UndefineAllPreprocessorDefinitions(
   /* [out, retval] */ VARIANT_BOOL* retVal
);
HRESULT __stdcall put_UndefineAllPreprocessorDefinitions(
   /* [in] */ VARIANT_BOOL NewValue
);
[C#]
public bool UndefineAllPreprocessorDefinitions {get; set;}
[JScript .NET]
public function get UndefineAllPreprocessorDefinitions() : Boolean
public function set UndefineAllPreprocessorDefinitions(
   NewValue : Boolean
)

Example

The following sample code modifies the UndefineAllPreprocessorDefinitions property in the development environment:

' add reference to Microsoft.VisualStudio.VCProjectEngine
Imports EnvDTE
Imports Microsoft.VisualStudio.VCProjectEngine

Public Module Module1
    Sub Test()
        Dim prj As VCProject
        Dim cfgs, tools As IVCCollection
        Dim cfg As VCConfiguration
        Dim tool As VCCLCompilerTool
        prj = DTE.Solution.Projects.Item(1).Object
        cfgs = prj.Configurations
        cfg = cfgs.Item(1)
        tool = cfg.Tools("VCCLCompilerTool")
        tool.UndefineAllPreprocessorDefinitions = True
    End Sub
End Module

See Samples for Project Model Extensibility for information on how to compile and run this sample.

See Also

Applies To: VCCLCompilerTool Object

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