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I execute my Program, which later displays a Form. Once I minimize it, it gets shrinked into the systemtray. Doubleclicking my systemtray-icon does: 

Show();
Activate();
WindowState = FormWindowState.Normal;

Which shows the Form again. Works.

Question: How can this be done while executing the same exe again, instead of doubleclicking the trayicon?

Problem: ShowWindow(handle, SW_MAX) displays the window, but some elements in the form are missing. NOTE: This does not happen, when i doubleclick the tray-icon.

Joel
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1 Answers1

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this will be helpful , you can find the current process is running or not when you re executing the process, if running you can maximize the current process Link

Dilan Wickramarathna
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  • window is now maximised, but some elements in the form do not get displayed. Why can that be? – Joel May 20 '16 at 06:03