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76 lines
1.7 KiB
C++
76 lines
1.7 KiB
C++
// Windows/Control/ComboBox.cpp
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#include "StdAfx.h"
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#ifndef _UNICODE
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#include "../../Common/StringConvert.h"
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#endif
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#include "ComboBox.h"
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#ifndef _UNICODE
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extern bool g_IsNT;
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#endif
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namespace NWindows {
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namespace NControl {
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LRESULT CComboBox::GetLBText(int index, CSysString &s)
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{
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s.Empty();
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LRESULT len = GetLBTextLen(index); // length, excluding the terminating null character
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if (len == CB_ERR)
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return len;
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LRESULT len2 = GetLBText(index, s.GetBuf((unsigned)len));
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if (len2 == CB_ERR)
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return len;
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if (len > len2)
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len = len2;
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s.ReleaseBuf_CalcLen((unsigned)len);
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return len;
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}
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#ifndef _UNICODE
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LRESULT CComboBox::AddString(LPCWSTR s)
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{
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if (g_IsNT)
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return SendMsgW(CB_ADDSTRING, 0, (LPARAM)s);
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return AddString(GetSystemString(s));
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}
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LRESULT CComboBox::GetLBText(int index, UString &s)
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{
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s.Empty();
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if (g_IsNT)
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{
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LRESULT len = SendMsgW(CB_GETLBTEXTLEN, MY_int_TO_WPARAM(index), 0);
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if (len == CB_ERR)
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return len;
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LRESULT len2 = SendMsgW(CB_GETLBTEXT, MY_int_TO_WPARAM(index), (LPARAM)s.GetBuf((unsigned)len));
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if (len2 == CB_ERR)
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return len;
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if (len > len2)
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len = len2;
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s.ReleaseBuf_CalcLen((unsigned)len);
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return len;
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}
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AString sa;
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const LRESULT len = GetLBText(index, sa);
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if (len == CB_ERR)
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return len;
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s = GetUnicodeString(sa);
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return (LRESULT)s.Len();
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}
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#endif
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LRESULT CComboBox::AddString_SetItemData(LPCWSTR s, LPARAM lParam)
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{
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const LRESULT index = AddString(s);
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// NOTE: SetItemData((int)-1, lParam) works as unexpected.
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if (index >= 0) // optional check, because (index < 0) is not expected for normal inputs
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SetItemData((int)index, lParam);
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return index;
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}
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}}
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