@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm 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("user32.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: Do you know one? Please contribute it! !!!!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... AppendMenu(hMenu, MF_STRING, 1001, "Item 1"); // 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@msdn on MSDN
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