Programming Gambas from Zip/DidYouKnow

Did You Know? — From Gambas ONE Shortcuts in Writing Code Thanks to cogier, stevedee and jornmo on Gambas One. https://forum.Gambas.one/viewtopic.php?f=4&t=489 alt=The Form_Open() event handler|frameless|241x241px Double-click a blank area of the form to start typing code for the Public Sub Form_Open() event. Double-click a button to start typing code for Public Sub Button_Click(). Otherwise, right-click the object or form > click EVENT… > choose the event you want to write code for. Expansions alt=Code abbreviations|frameless|695x695px If you want to start writing a new sub, type ps<tab> and you will see already typed for you:Public Sub Name(Arguments) Endv<tab> is changed into Private $Var As Type ds<tab>, df<tab> and di<tab> are changed into Dim sVar As String Dim fVar As Float Dim iVar As Integer Help If you hold down the CTRL key and click on a Gambas reserved word (e.g. Public, New, For, etc) the relevant help page is displayed. Selecting a keyword and pressing F2 also does it. Right-click a tool in the toolbox and help will appear. Declaring Variables alt=Automatic Variable Declarations in Gambas|frameless|699x699px In preferences (Ctrl-Alt-P) switch on Local variable declaration then in your empty 'Sub' type iCount = 6 and a Dim iCount as Integer automatically appears. Pausing and Looking at Variables alt=Pausing Gambas program execution to look at variables|none|thumb|Breakpoint set on the Dim statement. SoccerPlayer has “Maradona” in it.|595x595px If the program is paused (you put in a “breakpoint” in a certain place in the code, and the execution reached this place, or you click the Pause button) you can select a variable (drag over it, or double-click it) and you will see its value. Widen, Shorten and Move Things alt=Size and Position Coordinates of Objects on Gambas Forms|frameless|270x270px If you select the width or height properties of a control, the up or down arrows increase or reduce it by 7 pixels. If you select the X property of a control, up-arrow moves right, down-arrow moves left by 7 pixels. Similarly in the Y property value box, up-arrow moves down and down-arrow moves up (work that one out) by 7 pixels. If you want a line or selected lines of code to move up, click in the line and press Alt-UpArrow. Alt-DownArrow moves it or them down. Many Random Numbers Dim siRand1, siRand2, siRand3, siRand4 As Short = Rand(0, 9) This declares four short integer variables and puts a random digit between 0 and 9 into each. Deleting a Whole Line of Code Press Shift-Delete anywhere on the line. Commenting and Uncommenting Lines of Code alt=Commented-out Code, uncommented|left|frame|Uncommented alt=Commented-out Code, commented|none|thumb|Commented-out|297x297px Select the lines > Press Ctrl-K to “komment-out” the lines. Ctrl-U with lines selected will un-comment them. (Commenting out means making them into comments so they are not executed.) Non-Case-Sensitive Comparisons Use a double equals sign to disregard case. For example, "Hello" == "HELLO" is true. "Hello" = "HELLO" is false. You can also use a function to compare two strings String.Comp("Hello", "HELLO", gb.IgnoreCase) = 0 . String.Comp("Hello", "HELLO") <> 0 is true. Afterword Functions