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Create a dll file in c# how to#
Create a dll file in c# code#

Ĝhoose a name for the project, such as MyExecRefsDll, and enter it in the Name field.

ğile menu, select New and then Project….

Step 6: Create a separate application that references the DLL This creates a DLL that can be used by other programs

Select Build Solution from the Build menu.

ğrom the right pane, change the Configuration Type to Dynamic Library (.dll).

From the left pane, under Configuration Properties, select General.

ğrom the Project menu, select MathFuncsDll Properties….

Throw new invalid_argument("b cannot be zero!") A blank file will be displayed.ĭouble MyMathFuncs::Add(double a, double b)ĭouble MyMathFuncs::Subtract(double a, double b)ĭouble MyMathFuncs::Multiply(double a, double b)ĭouble MyMathFuncs::Divide(double a, double b) Choose a name for the source file, such as MathFuncsDll.cpp, and press Add. From the Templates pane, select C++ File (.cpp).

ğrom the Categories pane, under Visual C++, select Code.

The Add New Item dialog will be displayed.

ğrom the Project menu, select Add New Item….

Create a dll file in c# code#

Step 3: Create the source code for the class(es) These modifiers enable the method to be exported by the DLL so they can be used by other applications. Note the _declspec(dllexport) modifier in the method declarations above. Static _declspec(dllexport) double Divide(double a, double b) Throws DivideByZeroException if b is 0 Static _declspec(dllexport) double Multiply(double a, double b) Static _declspec(dllexport) double Subtract(double a, double b) Static _declspec(dllexport) double Add(double a, double b) Choose a name for the header file, such as MathFuncsDll.h, and press Add. ğrom the Templates pane, select Header File (.h).

Step 2: Add a class(es) to the dynamic link library ğrom the Application Settings page of the Win32 Application Wizard, under Additional options, select Empty project.You can change this later to make your project compile into a DLL. Some versions of Visual Studio do not support creating a DLL project using wizards. ğrom the Application Settings page of the Win32 Application Wizard, under Application type, select DLL if it is available or Console application if DLL is not available.ğrom the Overview page of the Win32 Application Wizard dialog, press Next.

Then Press OK to start the Win32 application wizard.In the Solution name field, choose a name for the solution, such as DynamicLibrary.In the Name field choose a name for the project, such as MathFuncsDll.ğrom the Templates pane, select Win32 Console Application.ğrom the Project types pane, under Visual C++, select Win32.ğrom the File menu, select New and then Project….It basically says the same thing, but with additional screenshots to make it more intuitive.

Create a dll file in c# how to#

These instructions, also available on the Microsoft site, show how to create from scratch a Visual Studio 2010 project that can utilize dll routines created elsewhere, by way of referencing.