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diff --git a/prev/wintable/includethis.h b/prev/wintable/includethis.h
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+// 17 february 2015
+
+#ifndef __GO_UI_WINTABLE_INCLUDETHIS_H__
+#define __GO_UI_WINTABLE_INCLUDETHIS_H__
+
+#define tableWindowClass L"gouitable"
+
+// start at WM_USER + 20 just in case for whatever reason we ever get the various dialog manager messages (see also http://blogs.msdn.com/b/oldnewthing/archive/2003/10/21/55384.aspx)
+// each of these returns nothing unless otherwise indicated
+enum {
+	// wParam - one of the type constants
+	// lParam - column name as a Unicode string
+	tableAddColumn = WM_USER + 20,
+	// wParam - 0
+	// lParam - pointer to intptr_t containing new count
+	tableSetRowCount,
+	// wParam - pointer to intptr_t where selected row will be stored
+	// lParam - pointer to intptr_t where selected column will be stored
+	// both will be -1 for no selection
+	// if either is NULL, that value is not written
+	tableGetSelection,
+	// wParam - pointer to intptr_t containing selected row
+	// lParam - pointer to intptr_t containing selected column
+	// if lParam is NULL, do not change selected column (selects column 0 if nothing previously selected; TODO explicitly document this?)
+	// TODO allow wParam to be NULL too; should both being NULL select nothing or keep the current selection?
+	// this WILL result in a selection changed notification (TODO work into the package ui Table)
+	tableSetSelection,
+};
+
+enum {
+	tableColumnText,
+	tableColumnImage,
+	tableColumnCheckbox,
+	nTableColumnTypes,
+};
+
+// notification codes
+// note that these are positive; see http://blogs.msdn.com/b/oldnewthing/archive/2009/08/21/9877791.aspx
+// each of these is of type tableNM
+// all fields except data will always be set
+enum {
+	// data parameter is always 0
+	// for tableColumnText return should be WCHAR *
+	// for tableColumnImage return should be HBITMAP
+	// for tableColumnCheckbox return is nonzero for checked, zero for unchecked
+	tableNotificationGetCellData,
+	// data parameter is pointer, same as tableNotificationGetCellData
+	// not sent for checkboxes
+	// no return
+	tableNotificationFinishedWithCellData,
+	// data is zero
+	// no return
+	tableNotificationCellCheckboxToggled,
+	// sent even on deselection (in that case, row == -1 and column == -1)
+	// data is zero
+	// no return
+	tableNotificationSelectionChanged,
+};
+
+typedef struct tableNM tableNM;
+
+struct tableNM {
+	NMHDR nmhdr;
+	intptr_t row;
+	intptr_t column;
+	int columnType;
+	uintptr_t data;
+};
+
+// TODO have hInstance passed in
+extern void initTable(void (*panicfunc)(const char *msg, DWORD lastError), BOOL (*WINAPI tme)(LPTRACKMOUSEEVENT));
+
+#endif