Authors: Chris Morgan <cmorgan@wpi.edu>, James Abbatiello <abbeyj@wpi.edu>

dlls/comctl32/listview.c

@@ -4671,6 +4671,55 @@ static LRESULT LISTVIEW_SetColumnA(HWND hwnd, INT nColumn,
 
 /***
  * DESCRIPTION:
+ * Sets the width of a column
+ *
+ * PARAMETERS:
+ * [I] HWND : window handle
+ * [I] INT : column index
+ * [I] INT : column width
+ *
+ * RETURN:
+ *   SUCCESS : TRUE
+ *   FAILURE : FALSE
+ */
+static LRESULT LISTVIEW_SetColumnWidth(HWND hwnd, INT iCol, INT cx)
+{
+    LISTVIEW_INFO *infoPtr;
+    HDITEMA hdi;
+    LRESULT lret;
+    LONG lStyle;
+
+    // set column width only if in report mode
+    lStyle = GetWindowLongA(hwnd, GWL_STYLE);
+    if ((lStyle & LVS_TYPEMASK) != LVS_REPORT)
+	return (FALSE);
+
+    // make sure we can get the listview info
+    if (!(infoPtr = (LISTVIEW_INFO *)GetWindowLongA(hwnd, 0)))
+	return (FALSE);  
+    if (!infoPtr->hwndHeader) // make sure we have a header
+	return (FALSE);	
+	
+    // FIXME: currently ignoring LVSCW_AUTOSIZE (-1) and
+    // LVSCV_AUTOSIZE_USEHEADER (-2)
+    if (cx < 0) 
+	return (FALSE);
+	
+    hdi.mask = HDI_WIDTH;
+    hdi.cxy = cx;
+
+    // call header to update the column change
+    lret = Header_SetItemA(infoPtr->hwndHeader, (WPARAM)iCol, (LPARAM)&hdi);
+
+    infoPtr->nItemWidth = LISTVIEW_GetItemWidth(hwnd, LVS_REPORT);
+
+    InvalidateRect(hwnd, NULL, TRUE); // force redraw of the listview
+
+    return lret;
+}
+
+/***
+ * DESCRIPTION:
  * Sets image lists.
  * 
  * PARAMETER(S):
@@ -6517,7 +6566,10 @@ LRESULT WINAPI LISTVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
 
 /*	case LVM_SETCOLUMNW: */
 /*	case LVM_SETCOLUMNORDERARRAY: */
-/*	case LVM_SETCOLUMNWIDTH: */
+
+  case LVM_SETCOLUMNWIDTH:
+    return LISTVIEW_SetColumnWidth(hwnd, (INT)wParam, (INT)lParam);
+
 /*	case LVM_SETEXTENDEDLISTVIEWSTYLE: */
 /*	case LVM_SETHOTCURSOR: */
 /*	case LVM_SETHOTITEM: */