PC Forms: Multiple Forms in a Single Executable File

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By adding additional information to the custom message command string, it is possible to pass information to the E-form executable file regarding which "instance" to load. In addition, modifying code in the EFORM.BAS file determines the steps to take for each form. This can be accomplished in two steps:

Step 1: Defining the Custom Message Class

For example, suppose the E-form executable file, SAMPLE.EXE contains two instances of E-forms you want to use. The entries in the [Custom Messages] section of the MSMAIL.INI would be as follows: NOTE: Both custom message classes access the same executable file (SAMPLE.EXE). However, each entry includes a unique addition to the command string (-MYFLAG vs. -MYOTHERFLAG).

Step 2: Modifying the Code

The next step is to add code to the E-form project to determine what to do when a custom command line is passed. This can be accomplished by adding the following lines to the ParseCommandLine function defined in EFORM.BAS:

    ElseIf token Like "[-/]MYFLAG" Then
     'load form for the first E-Form
    ElseIf token Like "[-/]MYOTHERFLAG" Then
     'load form for the second E-Form
				

The code written in ParseCommandLine will determine what action is taken when a particular command string is passed.