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 General Coding Requirements: WinMain Function and USE Statements Code Generation Options Using the Fortran Windowing Application Wizard Single Document Interface (SDI) or Multiple Document Interface (MDI) Sample Code Dialog-Based Sample Code 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

Understanding Coding Requirements for Fortran Windowing Applications

This topic covers the following:

General Coding Requirements: WinMain Function and USE Statements

Coding requirements for Fortran Windowing applications include (in the following order):

  1. WinMain function declaration and interface

    The WinMain function declaration and interface are required for Windows Graphical User Interface (GUI) applications (typically use at least the GDI and USER32 Windows API routines). An interface block for the function declaration can be provided. The following function must be defined by the user: 

    INTEGER(DWORD) function WinMain (hInstance, hPrevInstance, &
& lpszCmdLine, nCmdShow)
use IFWIN
!DEC$ ATTRIBUTES STDCALL, DECORATE, ALIAS:”WinMain”  :: WinMain
INTEGER(HANDLE), INTENT(IN) :: hInstance, hPrevInstance
INTEGER(LPVOID), INTENT(IN) :: lpszCmdLine
INTEGER(DWORD), INTENT(IN) :: nCmdShow

    In a program that includes a WinMain function, no program unit can be identified as the main program with the PROGRAM statement.

  2. The statement USE IFWIN or other appropriate USE statements

    The USE IFWINstatement makes available declarations of constants, derived types and procedure interfaces for much of the Windows Application Programming Interface (API) routines, also referred to as the Windows API. The Intel® Visual Fortran Compiler also provides individual modules for the various libraries that make up the Windows API, such as KERNEL32 and USER32. Any Fortran program or subprogram that references declarations from the Windows API must include a USE statement for either IFWIN, which collects all the available modules, or the appropriate subset modules for the Windows API libraries that are used.

    If you want to limit the type of parameters and interfaces for Windows applications or if unresolved references occur when linking your Fortran Windowing application, see the Intel® Visual Fortran Compiler User and Reference Guides for information on calling Windows API routines.

  3. Data declarations for the WinMain function arguments.

  4. Application-dependent code (other USE statements, variable declarations, and then executable code).

For example, consider the first lines of this sample, which uses free-form source code: 

INTEGER(DWORD) function WinMain (hInstance, hPrevInstance, &
& lpszCmdLine, nCmdShow)
use IFWIN
!DEC$ ATTRIBUTES STDCALL, DECORATE, ALIAS:”WinMain”  :: WinMain
INTEGER(HANDLE), INTENT(IN) :: hInstance, hPrevInstance
INTEGER(LPVOID), INTENT(IN) :: lpszCmdLine
INTEGER(DWORD), INTENT(IN) :: nCmdShow
 .
 .
 .

IFWIN.F90 includes a Fortran version (a subset) of the Windows WINDOWS.H header file.

Code Generation Options Using the Fortran Windowing Application Wizard

When you choose the Fortran Windowing Application project type, you will need to select the type of project.

The following choices are available:

  • Empty project

  • Single Document Interface (SDI) sample code

  • Multiple Document Interface (MDI) sample code

  • Dialog-based sample code

  • Single Document Interface (SDI) ActiveX* sample code

  • Multiple Document Interface (MDI) ActiveX sample code

  • Dialog-based ActiveX sample code

The ActiveX AppWizards will add additional template code for supporting ActiveX controls in your dialog boxes.

Single Document Interface (SDI) or Multiple Document Interface (MDI) Sample Code

Creating these types of application requires advanced programming expertise and knowledge of the Windows routines API. Such applications call certain library routines and require the statement USE IFWIN. SDI applications display a single window, whereas MDI application can display multiple windows (a main frame window with one or more child windows that appear within the frame window).

For example, select the MDI option from the Fortran AppWizard screen. After you build and run the application (without changing the source files), the following screen might appear after you create two child window by clicking New from the File menu twice:


If you selected the SDI option from the Fortran AppWizard screen and built and ran the application, you could not create child windows within the main window.

For more information:

Dialog-Based Sample Code

Dialog applications use a dialog box for the application's main window. Creating these applications requires some knowledge of the Windows routines API, but considerably less than for a SDI or MDI application. These applications call certain Intel Visual Fortran library routines and require the statement USE IFLOGM. Dialog-based applications usually do not have menus.

For example, select the Dialog-based applications from the Fortran AppWizard screen. After you build and run the application (without changing the source files), the following dialog box appears:



You can use dialogs in any project type. Dialogs don’t require the use of a windowing application if you are using the module IFLOGM.

For more information:

Parent topic: Creating Windowing Applications
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