CustomCmdComboBox.cs

class CustomComboCommandHandler : IUIX_CmdHandler
{
	public IPXV_Inst m_Inst = null;
	public IUIX_Inst m_uiInst = null;

	public CustomComboCommandHandler(IPXV_Inst Inst)
	{
		m_Inst = Inst;
		m_uiInst = (IUIX_Inst)Inst.GetExtension("UIX");
	}

	public void OnCreateNewCtl(PDFXEdit.IUIX_Cmd pCmd, PDFXEdit.IUIX_CmdBar pParent, out PDFXEdit.IUIX_Obj pCtl)
	{
		//Here the combo box is created and initialized
		tagRECT rc;
		rc.left = 0;
		rc.right = 0;
		rc.top = 0;
		rc.bottom = 0;
		IUIX_Combo cmb = m_uiInst.CreateCombo(pParent.Obj, ref rc, m_Inst.ID2Str(pCmd.ID), (long)UIX_ComboStyleFlags.UIX_ComboStyle_Editable, null);
		cmb.InsertItem(-1, "A");
		cmb.InsertItem(-1, "B");
		cmb.InsertItem(-1, "C");
		pCtl = cmb.Obj;
	}

	public void OnGetCtlSizes(PDFXEdit.IUIX_CmdItem pItem, ref PDFXEdit.tagSIZE nSize, ref PDFXEdit.tagSIZE nMinSize, ref PDFXEdit.tagSIZE nMaxSize)
	{
		nSize.cx = 100;
		nSize.cy = pItem.Bar.Font.LineHeight + 4;
		nMaxSize.cy = nSize.cy;
	}

	public void OnGetItemState(PDFXEdit.IUIX_Cmd pCmd, PDFXEdit.IUIX_CmdItem pItem, PDFXEdit.IUIX_Obj pOwner, out int nState)
	{
		nState = (int)PDFXEdit.UIX_CmdItemState.UIX_CmdItemState_Normal;

	}

	public void OnGetItemSubMenu(PDFXEdit.IUIX_CmdItem pItem, out PDFXEdit.IUIX_CmdMenu pSubMenu)
	{
		pSubMenu = null;
	}

	public void OnNotify(int nCode, PDFXEdit.IUIX_Cmd pCmd, PDFXEdit.IUIX_CmdItem pItem, PDFXEdit.IUIX_Obj pOwner, uint nNotifyData)
	{
		if (nCode == (int)UIX_NotifyCodes.UIX_Notify_SelChanged)
		{
			//Check for selection change and act accordingly
		}
	}

	public void OnDrawItemIcon(PDFXEdit.IUIX_RenderContext pRC, PDFXEdit.IUIX_CmdItem pItem, ref PDFXEdit.tagRECT stIconRect, ref PDFXEdit.tagRECT stClip)
	{
				
	}
}



private void addComboBoxTypeCommandToolStripMenuItem_Click(object sender, EventArgs e)
{
	pdfCtl.Inst.LockCmdCustomizationEvent();
	IUIX_Inst uiInst = (IUIX_Inst)pdfCtl.Inst.GetExtension("UIX");
	uiInst.CmdManager.LockAllPanesUpdates();

	IPXV_MainFrame firstMainFrame = pdfCtl.Inst.MainFrm[0];
	IUIX_CmdBar fileBar = firstMainFrame.View.CmdBar["cmdbar.file"];
	CustomComboCommandHandler hnd = new CustomComboCommandHandler(pdfCtl.Inst);
	IUIX_Cmd cmd = uiInst.CmdManager.CreateNewCmd("cmd.customCombo", "", hnd, null, "", 0);
	fileBar.InsertItem(cmd);


	uiInst.CmdManager.UnlockAllPanesUpdates();
	pdfCtl.Inst.UnlockCmdCustomizationEvent();
	

			
}