VCMidlTool.PreprocessorDefinitions VCMidlTool.PreprocessorDefinitions VCMidlTool.PreprocessorDefinitions VCMidlTool.PreprocessorDefinitions VCMidlTool.PreprocessorDefinitions Property

Definition

Gets or sets one or more preprocessor defines.

public:
 property System::String ^ PreprocessorDefinitions { System::String ^ get(); void set(System::String ^ value); };
public:
 property Platform::String ^ PreprocessorDefinitions { Platform::String ^ get(); void set(Platform::String ^ value); };
[System.Runtime.InteropServices.DispId(2)]
[get: System.Runtime.InteropServices.DispId(2)]
[set: System.Runtime.InteropServices.DispId(2)]
public string PreprocessorDefinitions { get; set; }
member this.PreprocessorDefinitions : string with get, set
Public Property PreprocessorDefinitions As String
Property Value

One or more preprocessor defines.

Examples

See How to: Compile Example Code for Project Model Extensibility for information about how to compile and run this example.

The following example modifies the compiler's PreprocessorDefinitions property in the integrated development environment (IDE):

[Visual Basic]

' 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  
        Dim oldDefs As String  
        prj = DTE.Solution.Projects.Item(1).Object  
        cfgs = prj.Configurations  
        cfg = cfgs.Item(1)  
        tool = cfg.Tools("VCCLCompilerTool")  
        oldDefs = tool.PreprocessorDefinitions  
        tool.PreprocessorDefinitions = "_TEST;" + oldDefs  
        MsgBox(tool.PreprocessorDefinitions)  
    End Sub  
End Module  

Remarks

PreprocessorDefinitions exposes the functionality of the compiler's /D (Preprocessor Definitions) option, the MIDL compiler's MIDL Property Pages: General option, and the Resource Compiler's Resources Property Pages option.

Applies to