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CONTROL CLASS PREFIX Check Box chk Combo Box cbo Command Button cmd Form frm Frame fra Grid grd Horizontal Scroll Bar hsb Image img Label lbl List Box lst Option Button opt Picture Box pic Text Box txt Vertical Scroll Bar vsb
Controls that remain unchanged during the running of the program are not required to conform to this naming convention. These typically include Labels and Shapes (including lines and rectangles). For example, unchanging labels could be given names such as Label1, Label2, etc.
All variables start with a prefix that indicates the scope and data type. Here, the prefix consists of all letters preceding the first underscore in a variable name, with the scope designation preceding that of the data type.
m = module-level declared in the (declarations) section of (General)
l = local declared within the procedure in which the variable is used;
this is usually omitted.
s = Single Precision (real number) i = Integer st = String b = Boolean (True or False)