Your First HMG Program

I'll not be original, so this program will display a 'Hello World' message

 #include "hmg.ch" 
Function Main
     DEFINE WINDOW Win_1 ;
        AT 0,0 ;
        WIDTH 400 ;
        HEIGHT 200 ;
        TITLE 'Tutor 01 - Hello World!' ;
        MAIN 
     END WINDOW
     ACTIVATE WINDOW Win_1
 Return

¼ DEFINE WINDOW command will create the main window for the program.

¼ Win_1 is the name of the window.

¼ AT 0,0 indicates the window position (row=0,col=0)

¼ WIDTH 400 means that the window will have 400 pixels width.

¼ HEIGHT 200 means that the window will have 200 pixels height.

¼ TITLE 'Hello World!' indicates the text in the window title bar.

¼ MAIN indicates that we are defining the main application window

(a main window is required for all HMG applications)

¼ ACTIVATE WINDOW Form_1 will show the window and start the event loop.