Determine if only one instance is running: Difference between revisions
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=={{header|Visual Basic}}== |
=={{header|Visual Basic}}== |
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{{works with|Visual Basic|4}} <!-- previous versions possible but unlikely; no way to test right now --> |
{{works with|Visual Basic|4}} <!-- previous versions possible but unlikely; no way to test right now --> |
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{{works with|Visual Basic|5}} |
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{{works with|Visual Basic|6}} |
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<lang vb>Dim onlyInstance as Boolean |
<lang vb>Dim onlyInstance as Boolean |
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onlyInstance = not App.PrevInstance</lang> |
onlyInstance = not App.PrevInstance</lang> |
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