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    <p>When you call <code>RestoreWindow()</code> to draw the bitmap onscreen, you are wiping out your <code>memoryDC</code> variable that you used to draw the pixels with. The bitmap is still selected into the original <code>HDC</code> that you have now lost, and a bitmap cannot be selected into multiple <code>HDC</code>s at the same time (the MSDN documentation for <code>SelectObject()</code> says as much). So you are not actually drawing the bitmap onscreen at all.</p> <p>There is no need to call <code>CreateCompatibleDC()</code> or <code>SelectObject()</code> inside of <code>RestoreWindow()</code> because you already have the bitmap and memory <code>HDC</code> set up inside of <code>StoreWindow()</code>, so they use them as-is instead.</p> <p>Try this:</p> <pre><code>HDC memoryDC = NULL; HBITMAP memoryBitmap = NULL; int width = 0, height = 0; void CheckWidthHeight() { RECT clientRect; GetClientRect(hwnd, &amp;clientRect); width = clientRect.right - clientRect.left; height = clientRect.bottom - clientRect.top; } void StoreWindow() { HDC hDC = GetDC(hwnd); memoryDC = CreateCompatibleDC(hDC); memoryBitmap = CreateCompatibleBitmap(hDC, width, height); SelectObject(memoryDC, memoryBitmap); BitBlt(memoryDC, 0, 0, width, height, hDC, 0, 0, SRCCOPY); ReleaseDC(hwnd, hDC); } void RestoreWindow() { PAINTSTRUCT ps; HDC hDC = BeginPaint(hwnd, &amp;ps); if (memoryDC) BitBlt(hDC, 0, 0, width, height, memoryDC, 0, 0, SRCCOPY); EndPaint(hwnd, &amp;ps); } ... case WM_SIZE: { CheckWidthHeight(); break; } case WM_LBUTTONDOWN: { if (!memoryDC) StoreWindow(); if (memoryDC) { SetPixel(memoryDC, LOWORD(lParam), HIWORD(lParam), RGB(0,0,0)); RECT rect; rect.left = LOWORD(lParam); rect.top = HIWORD(lParam); rect.right = rect.left + 1; rect.bottom = rect.top + 1; InvalidateRect(hwnd, &amp;rect, TRUE); } break; } case WM_PAINT: { RestoreWindow(); break; } ... </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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