coredll is for smart devices, not desktop Windows. Therefore, this information only applies to code using the .NET Compact Framework. To see if information for TrackPopupMenuEx in other DLLs exists, click on Find References to the right.

Summary

This function displays a floating pop-up menu at the specified location and tracks the selection of items on the pop-up menu. The floating pop-up menu can appear anywhere on the screen.

C# Signature:

[DllImport("coredll.dll", SetLastError=true)]
static extern uint TrackPopupMenuEx(IntPtr hMenu, uint uFlags, int x, int y, IntPtr hWnd, IntPtr tpmParams);

User-Defined Types:

uFlags:

    uint TPM_LEFTALIGN = 0x0000;
    uint TPM_CENTERALIGN = 0x0004;
    uint TPM_RIGHTALIGN = 0x0008;
    uint TPM_TOPALIGN = 0x0000;
    uint TPM_VCENTERALIGN = 0x0010;
    uint TPM_BOTTOMALIGN = 0x0020;
    uint TPM_HORIZONTAL = 0x0000;
    uint TPM_VERTICAL = 0x0040;
    uint TPM_RETURNCMD = 0x0100;

Alternative Managed API:

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Notes:

Tips & Tricks:

Use TrackPopupMenuEx with the TPM_RETURNCMD flag to return the ID of the selected Menu Item.

Sample Code:

    MessageWindow eventSink = new MessageWindow();
    IntPtr hMenu = CreatePopUpMenu();

    // Add some items...

    // Display a Pop Up menu at the bottom right corner of the working area of the screen
    // growing from bottom to top
    uint menuItemID = TrackPopupMenuEx(hMenu, TPM_BOTTOMALIGN | TPM_RETURNCMD, Screen.PrimaryScreen.WorkingArea.Width, Screen.PrimaryScreen.WorkingArea.Height, eventSink.Hwnd, IntPtr.Zero);

    // Use the menuItemID to fire some event...

Documentation

TrackPopupMenuEx on MSDN

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