组合框的下拉列表没有显示通过SendMessage()添加到它的项目

问题描述

下拉列表框列表不显示SendMessage()添加到它的项目

这是包含组合框的对话框

Drop down list of combo box is not showing item added to it by SendMessage()

This is Dialog box which contains combo box

BOOL CALLBACK AddRuleDlgProc (HWND hAddRuleDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	 const char *ComboBoxItem[] = {"All","TCP","UDP","ICMP"};
         case WM_INITDIALOG :
         for(i=0;i<3;i++)
         {	 SendMessage((GetDlgItem(hAddRuleDlg,IDC_COMBO4)),CB_ADDSTRING,0,reinterpret_cast<LPARAM>((LPCSTR)ComboBoxItem[i]));
         }
         return TRUE ;
}

这是组合框的资源

This is resource of combo box

COMBOBOX        IDC_COMBO4,81,151,44,49,CBS_DROPDOWNLIST | CBS_OWNERDRAWVARIABLE | WS_VSCROLL | WS_TABSTOP

请尽快给我帮忙

Please help me asap

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