VCMidlTool.CPreprocessOptions Property

Reference

Definition

Namespace:: Microsoft.VisualStudio.VCProjectEngine

Assembly:: Microsoft.VisualStudio.VCProjectEngine.dll

Package:: Microsoft.VisualStudio.VCProjectEngine v17.12.40390

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets a C-compiler preprocessor option to pass to the MIDL compiler.

public:
 property System::String ^ CPreprocessOptions { System::String ^ get(); void set(System::String ^ value); };

public:
 property Platform::String ^ CPreprocessOptions { Platform::String ^ get(); void set(Platform::String ^ value); };

[System.Runtime.InteropServices.DispId(59)]
public string CPreprocessOptions { [System.Runtime.InteropServices.DispId(59)] get; [System.Runtime.InteropServices.DispId(59)] set; }

[<System.Runtime.InteropServices.DispId(59)>]
[<get: System.Runtime.InteropServices.DispId(59)>]
[<set: System.Runtime.InteropServices.DispId(59)>]
member this.CPreprocessOptions : string with get, set

Public Property CPreprocessOptions As String

Property Value

String

A C-compiler preprocessor option.

Attributes: DispIdAttribute

Examples

The following example modifies the CPreprocessOptions 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 VCMidlTool  
        prj = DTE.Solution.Projects.Item(1).Object  
        cfgs = prj.Configurations  
        cfg = cfgs.Item(1)  
        tool = cfg.Tools("VCMIDLTool")  
        tool.CPreprocessOptions = "test"  
    End Sub  
End Module

Remarks

CPreprocessOptions exposes the functionality of the /cpp_opt MIDL option.

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

Applies to

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