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POPositioning A Form From A SysTray Icon
 

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  1. POPositioning A Form From A SysTray Icon
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    <p>I'd like to display a form off of a systray icon event, which just shows some information next to the taskbar and disappears itself after some time. The main issue I'm running into is positioning the form in a way that it is both in the correct position and visible. I found a couple of ways to determine where the icon is, but in testing I found them inconsistent based on OS (I attempted this in another app and ended up giving up and using a centered modal form). For example:</p> <pre><code>procedure GetWorkAreaRect(var outrect: TRect); // returns the dimensions of the work area. begin Systemparametersinfo(SPI_GETWORKAREA, 0, @outrect, 0); end; </code></pre> <p>The problem when that works is determining from there where to put the form (above, below, left, right). Any suggestions?</p> <p><strong>Edit:</strong> The problem is in <strong>positioning the form</strong> in relationship to the system tray icon, not necessarily determining where the system tray icon is. I made another attempt and got it working <em>as long as some conditions are met</em>. Most notably, it doesn't work if the taskbar is set to auto-hide, because the assumption is made that the click is made outside of the work area. This is not true when the form is set to auto-hide.</p> <pre><code>function PositionForm(X, Y, Width, Height: Integer): TPoint; // receives mouse-click position in X and Y, form width and height in width and height // returns Left and Top in TPoint.X and TPoint.Y. var workrect: TRect; resrect: TPoint; begin GetWorkAreaRect(workrect); if Y &gt; WorkRect.Bottom then // taskbar is on bottom begin resRect.X := WorkRect.Right - Width; resrect.Y := WorkRect.Bottom - Height; end else if X &gt; WorkRect.Right then // taskbar is on right begin resrect.X := WorkRect.Right - Width; resrect.Y := WorkRect.Bottom - Height; end else if X &lt; WorkRect.Left then // taskbar is on left begin resrect.X := WorkRect.Left; resrect.Y := WorkRect.Bottom - Height; end else if Y &lt; WorkRect.Top then // taskbar is on top begin resrect.X := WorkRect.Right - Width; resrect.Y := WorkRect.Top; end; Result := ResRect; end; </code></pre> <p>So on the surface, it seems the issue is to find an independent way to determine where the taskbar resides...or could the logic be extended above to take care of this?</p>
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    1. USGlenn1234
    1. USGlenn1234
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      1. VTUpMod
    1. COThe question has changed somewhat. Can you tell me how you obtain X and Y?
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      1. USDavid Heffernan
    2. COMy answer now tells you how to locate the taskbar.
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      1. USDavid Heffernan
 

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