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POHow to convert LPTSTR to LPCWSTR?
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  1. POHow to convert LPTSTR to LPCWSTR?
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    copied!<p>I need to convert from <code>LPTSTR</code> to <code>LPCWSTR</code>. I need this because I'm getting <code>LPTSTR</code> from <code>GetDlgItemText</code>, which I'm going to feed to <code>ExtTextOut</code>, which accepts <code>LPCWSTR</code>.</p> <p>Edit: Before passing of the value from <code>GetDlgItemText</code> I store the value in <code>std::vector</code>. After which I retrieve the value from the <code>std::vector</code> and it returns me an empty/giberish.</p> <p><strong>Dialog box:</strong></p> <pre><code>WORD lineLength = (WORD) SendDlgItemMessage(hwnd,IDC_EDIT1, EM_LINELENGTH, (WPARAM) 0, (LPARAM) 0); if(lineLength &gt; 0){ TCHAR line[16]; int number = GetDlgItemTextW(hwnd, IDC_EDIT1, line, 16); HWND parent = (HWND)GetWindowLongPtr(hwnd, GWLP_HWNDPARENT); LPCWSTR line2(line); SendMessage(parent, WM_COMMAND, MAKEWPARAM(ADD_COMBO_ITEM,0), (LPARAM)line); </code></pre> <p>It sends a message to the parent window, which adds this value to the vector (<strong><code>push_back</code></strong>). The class with the parentwindow:</p> <pre><code>std::vector&lt;LPCWSTR&gt; comboItems </code></pre> <p>this is a piece of a function that I use to output my values using <strong><code>ExtTextOut</code></strong>:</p> <pre><code>RECT temp; temp.left = listItemWidth; temp.right = width; SetBkColor(hdc, RGB(240,240,260)); LPCWSTR comboName = L""; for(std::vector&lt;item&gt;::size_type i=0; i != comboItems.size(); i++){ temp.left = listItemWidth; temp.right = width; temp.top = (currentlyClicked + 1) * listItemHeight + i * listItemHeight; temp.bottom = temp.top + listItemHeight; comboName = comboItems[i]; ExtTextOut(hdc, temp.left+2, temp.top + 1, ETO_OPAQUE, &amp;temp, comboName, lstrlen(comboName), 0); DrawEdge(hdc, &amp;temp, EDGE_RAISED, BF_RECT | BF_FLAT | BF_ADJUST); } </code></pre>
 

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