Using Intel® Visual Fortran to Create and Build Windows*-Based Applications

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ID 757211
Date 7/23/2021
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Document Table of Contents
Document Table of Contents x
Using Intel® Visual Fortran Compiler to Create and Build Windows*-Based Applications
Using Intel® Visual Fortran Compiler to Create and Build Windows*-Based Applications x
Legal Information Introduction Creating Windowing Applications Creating and Using DLLs Using QuickWin Using Dialog Boxes for Application Controls
Introduction x
Notational Conventions Related Information
Creating Windowing Applications x
Understanding Coding Requirements for Fortran Windowing Applications Using Menus and Dialogs in SDI and MDI Fortran Windowing Applications Sample Fortran Windows Applications Advanced Graphics Using OpenGL
Creating and Using DLLs x
Coding Requirements for Sharing Procedures in DLLs Coding Requirements for Sharing Data in DLLs Building Dynamic-Link Libraries Building Executables that Use DLLs
Using QuickWin x
Special Naming Convention for Certain QuickWin and Windows* Graphics Routines Comparing QuickWin with Windows*-Based Applications Using Windows API Routines with QuickWin Types of QuickWin Programs The QuickWin User Interface USE Statement Needed for Fortran QuickWin Applications Creating QuickWin Windows Using QuickWin Graphics Library Routines
Types of QuickWin Programs x
Fortran Standard Graphics Applications Fortran QuickWin Graphics Applications
The QuickWin User Interface x
Default QuickWin Menus
Creating QuickWin Windows x
Accessing Window Properties Creating Child Windows Giving a Window Focus and Setting the Active Window Keeping Child Windows Open Controlling Size and Position of Windows
Using QuickWin Graphics Library Routines x
Selecting Display Options Checking the Current Graphics Mode Setting the Graphics Mode Setting Figure Properties Understanding Coordinate Systems Adding Color Writing a Graphics Program Displaying Graphics Output Storing and Retrieving Images Customizing QuickWin Applications QuickWin Programming Precautions Simulating Nonblocking I/O
Understanding Coordinate Systems x
Text Coordinates Graphics Coordinates Setting Graphics Coordinates Real Coordinates Sample Program
Adding Color x
Color Mixing VGA Color Palette Using Text Colors
Writing a Graphics Program x
Activating a Graphics Mode Drawing Lines on the Screen Drawing a Sine Curve Adding Shapes
Displaying Graphics Output x
Drawing Graphics Displaying Character-Based Text Displaying Font-Based Characters Using Fonts from the Graphics Library
Using Fonts from the Graphics Library x
Available Typefaces Initializing Fonts Setting the Font and Displaying Text SHOWFONT.F90 Example
Storing and Retrieving Images x
Transferring Images in Memory Loading and Saving Images to Files Editing Text and Graphics from the QuickWin Edit Menu
Customizing QuickWin Applications x
Enhancing QuickWin Applications Controlling Menus Changing Status Bar and State Messages Displaying Message Boxes Defining an About Box Using Custom Icons Using a Mouse
QuickWin Programming Precautions x
Using Blocking Procedures Using Callback Routines
Using Dialog Boxes for Application Controls x
Using the Resource Editor to Design a Dialog Box Writing a Dialog Application Summary of Dialog Routines Understanding Dialog Controls Using Dialog Controls Using ActiveX* Controls
Using the Resource Editor to Design a Dialog Box x
Setting Control Properties Including Resources Using Multiple Resource Files The Include (.FD and .H) Files
Writing a Dialog Application x
Initializing and Activating the Dialog Box Using Dialog Callback Routines Using a Modeless Dialog Box Using Fortran AppWizards to Help Add Modal Dialog Box Coding Using Fortran AppWizards to Help Add Modeless Dialog Box Coding Using Dialog Controls in a DLL
Understanding Dialog Controls x
Using Control Indexes Available Indexes for Each Dialog Control Specifying Control Indexes
Using Dialog Controls x
Using Static Text Using Edit Boxes Using Group Boxes Using Check Boxes and Radio Buttons Using Buttons Using List Boxes and Combo Boxes Using Scroll Bars Using Pictures Using Progress Bars Using Spin Controls Using Sliders Using Tab Controls Setting Return Values and Exiting
Using ActiveX* Controls x
Using the Resource Editor to Insert an ActiveX Control Using the Intel® Fortran Module Wizard to Generate a Module Adding Code to Your Application Registering an ActiveX Control
Using Intel® Visual Fortran Compiler to Create and Build Windows*-Based Applications

Coding Requirements for Sharing Procedures in DLLs

A dynamic-link library (DLL) contains one or more subprograms that are compiled, linked and stored separately from the applications using them.

Coding requirements include using the cDEC$ ATTRIBUTES compiler directive DLLIMPORT and DLLEXPORT options. Variables and routines declared in the main program and in the DLL are not visible to each other unless you use DLLIMPORT and DLLEXPORT.

This section discusses aspects of sharing subprogram procedures (functions and subroutines) in a Fortran DLL.

To export and import each DLL subprogram:

  1. Within your Fortran DLL, export each subprogram that will be used outside the DLL. Add !DEC$ ATTRIBUTES DLLEXPORT to declare that a function, subroutine, or data is being exported outside the DLL. For example: 

    SUBROUTINE ARRAYTEST(arr)
!DEC$ ATTRIBUTES DLLEXPORT :: ARRAYTEST
REAL arr(3, 7)
INTEGER i, j
DO i = 1, 3
DO j = 1, 7
arr (i, j) = 11.0 * i + j
END DO
END DO
END SUBROUTINE

  2. Within your Fortran application, import each DLL subprogram. Add !DEC$ ATTRIBUTES DLLIMPORT to declare that a function, subroutine, or data is being imported from outside the current image. For example: 

    INTERFACE
SUBROUTINE ARRAYTEST (rarray)
!DEC$ ATTRIBUTES DLLIMPORT :: ARRAYTEST
REAL rarray(3, 7)
END SUBROUTINE ARRAYTEST
END INTERFACE 
CALL ARRAYTEST (rarray)

    Or, not using an INTERFACE block: 

    PROGRAM TESTA
!DEC$ ATTRIBUTES DLLIMPORT:: ARRAYTEST
REAL rarray (3,7)
CALL ARRAYTEST(rarray)
END PROGRAM TESTA

    The DLLEXPORT and DLLIMPORT options (for the cDEC$ ATTRIBUTES directive) tell the linker that a procedure, variable or COMMON block is to be visible in a DLL, or that it can be found in a DLL.

    The DLLEXPORT property declares that functions or data are being exported to other images or DLLs, usually eliminating the need for a Linker module definition (.DEF) file to export symbols for the functions or subroutines declared with DLLEXPORT. When you declare a function, subroutine, or data with the DLLEXPORT property, it must be defined in the same module of the same program.

    A program that uses symbols defined in another image (such as a DLL) must import them. The DLL user needs to link with the import LIB file from the other image and use the DLLIMPORT property inside the application that imports the symbol. The DLLIMPORT option is used in a declaration, not a definition, because you do not define the symbol you are importing.

  3. Build the DLL and then build the main program, as described in Building Dynamic-Link Libraries.

Fortran and C applications can call Fortran and C DLLs provided the calling conventions are consistent.

Parent topic: Creating and Using DLLs

See Also

Coding Requirements for Sharing Data in DLLs sharing either common block or module data in a DLL
Level Two Title