ArcGIS Engine Developer Guide

BUILDING APPLICATIONS WITH C++ AND CONTROL WIDGETS
c. Remember to clean up g_ipCustomizeDialog when the application closes.
// Function called when WM_DELETE_WINDOW protocol is passed
void CloseAppCallback(Widget w, XtPointer client_data, XtPointer
call_data)
{
…
delete g_dateTool;
If the ArcGIS Engine commands are not appearing
in the Customize dialog box, there is a
problem with your registry. Those commands can
be added from the file, and to have that option
in the Customize dialog box, pass
VARIANT_TRUE into put_ShowAddFromFile().
g_ipPopupMenu = 0;
g_ipFillSymbol = 0;
g_ipCurrentExtent = 0;
g_ipCustomizeDialog = 0;
3. Call CreateCustomizeDialog from the main function sometime after the
ToolbarControl is initialized. If this is done any earlier, the Customize dialog
box will not be associated with the ToolbarControl. For this scenario, call the
function after adding the toolbar items.
AddToolbarItems();
CreateCustomizeDialog();
4. Create a callback function for the toggle button. When the user clicks the
toggle button to the on state, you want to show the Customize dialog box.
When it is clicked off, the Customize dialog box should disappear.
a. Place the forward declaration in MapViewer.h.
HRESULT CreateCustomizeDialog();
void ToggleCallback(Widget w, XtPointer client_data, XtPointer call_data);
b. At the bottom of MapViewer.cpp, place the definition of the callback.
HRESULT CreateCustomizeDialog()
{
…
}
void ToggleCallback(Widget w, XtPointer client_data, XtPointer call_data)
{
XmToggleButtonCallbackStruct *customize =
(XmToggleButtonCallbackStruct *) call_data;
long hWnd;
g_ipToolbarControl->get_hWnd(&hWnd);
if (customize->set)
g_ipCustomizeDialog->StartDialog(hWnd);
else
g_ipCustomizeDialog->CloseDialog();
}
c. Also set up the callback right after the customizeToggle has been created in
FormSetup.
g_customizeToggle = XtVaCreateWidget(…);
XtAddCallback(g_customizeToggle, XmNvalueChangedCallback, ToggleCallback,
NULL);
404 • ArcGIS Engine Developer Guide