This article was previously published under Q178078
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Running a project in the IDE that displays a message box prevents eventsfrom occurring. However, when you compile and run the same project as anexecutable file (EXE), the events occur while the message box is displayed.
The behavior in the EXE has changed with Microsoft Visual Basic 5.0 and 6.0 so that it is different from earlier versions of Microsoft Visual Basic.
This behavior is by design.
Steps to Reproduce Behavior
Start a new Standard EXE project in Visual Basic. Form1 is created by default.
Add two Command Buttons and one Timer control to Form1.
Copy the following code to the Code window of Form1:
Option Explicit Private Sub Form_Load() Timer1.Interval = 1000 Command1.Caption = "Show Message Box" Command2.Caption = "Show Modal Form" End Sub Private Sub Command1_Click() MsgBox "Events Do Not Occur" End Sub Private Sub Command2_Click() Form2.Show vbModal End Sub Private Sub Timer1_Timer() Static intCount intCount = intCount + 1 Form1.Print "Event # " & intCount End Sub
Add a second form to the Project by completing the following steps:
From the Project menu, click Add Form. The Add Form dialog box appears.
From the New Tab, click Form.
Click OK to close the Add Form dialog box. Form2 is added to the project.
On the Run menu, click Start or press the F5 key to start the program.
Click Show Message Box after two events occur. Note that the Timer event is no longer triggered.
Click Show Modal Form to display a modal form. Note that the events still occur even while the modal form is displayed.
Compile the project and run the executable file as shown in step 6. Note that the events still occur despite displaying the message box or form.