rem: sprintf(buf, "Subview %d", WMGetSplitViewSubViewsCount(sPtr) + 1);
add: sprintf(buf, "Subview %d", WMGetSplitViewSubviewsCount(sPtr) + 1);
context: appendSubviewButtonAction(WMWidget *self, void *data){    WMSplitView *sPtr = (WMSplitView*)data;    char buf[64];    WMLabel *label = WMCreateLabel(sPtr);        sprintf(buf, "Subview %d", WMGetSplitViewSubViewsCount(sPtr) + 1);    WMSetLabelText(label, buf);    WMSetLabelRelief(label, WRSunken);    WMAddSplitViewSubview(sPtr, WMWidgetView(label));    WMRealizeWidget(label);    WMMapWidget(label);}