416             if (pWin->firstChild) {  in PrintWindowTree()
417                 pWin = pWin->firstChild;  in PrintWindowTree()
444         if ((result == WT_WALKCHILDREN) && pChild->firstChild) {  in TraverseTree()
445             pChild = pChild->firstChild;  in TraverseTree()
482     pWin->firstChild = NullWindow;  in SetWindowToDefaults()
751         return pWin->firstChild;  in RealChildHead()
914         pWin->nextSib = pParent->firstChild;  in CreateWindow()
915         if (pParent->firstChild)  in CreateWindow()
916             pParent->firstChild->prevSib = pWin;  in CreateWindow()
919         pParent->firstChild = pWin;  in CreateWindow()
1041     if (!(pChild = pWin->firstChild))  in CrushTree()
1045         if (pChild->firstChild) {  in CrushTree()
1046             pChild = pChild->firstChild;  in CrushTree()
1068             pChild->firstChild = NullWindow;  in CrushTree()
1101         if (pParent->firstChild == pWin)  in DeleteWindow()
1102             pParent->firstChild = pWin->nextSib;  in DeleteWindow()
1459                 for (pChild = pWin->firstChild; pChild;  in ChangeWindowAttributes()
1473                 for (pChild = pWin->firstChild; pChild;  in ChangeWindowAttributes()
1516                 for (pChild = pWin->firstChild; pChild;  in ChangeWindowAttributes()
1550                     for (pChild = pWin->firstChild; pChild;  in ChangeWindowAttributes()
1652             if (pParent->firstChild == pWin)  in MoveWindowInStack()
1653                 pParent->firstChild = pWin->nextSib;  in MoveWindowInStack()
1666         else if (pParent->firstChild == pNextSib) {     /* move to top */  in MoveWindowInStack()
1674             pWin->nextSib = pParent->firstChild;  in MoveWindowInStack()
1677             pParent->firstChild = pWin;  in MoveWindowInStack()
1684             if (pParent->firstChild == pWin)  in MoveWindowInStack()
1685                 pFirstChange = pParent->firstChild = pWin->nextSib;  in MoveWindowInStack()
1700                 pFirstChange = pParent->firstChild;     /* no, search from top */  in MoveWindowInStack()
1864     for (pSib = pWin->firstChild; pSib; pSib = pSib->nextSib) {  in ResizeChildrenWinSize()
1890         if ((pChild = pSib->firstChild)) {  in ResizeChildrenWinSize()
1901                 if (pChild->firstChild) {  in ResizeChildrenWinSize()
1902                     pChild = pChild->firstChild;  in ResizeChildrenWinSize()
1947     pWin = pMe->parent->firstChild;  in IsSiblingAboveMe()
2075     if ((pWin == pWin->parent->firstChild) && (pWin == pWin->parent->lastChild))  in WhereDoIGoInTheStack()
2078     pFirst = pHead ? pHead->nextSib : pWin->parent->firstChild;  in WhereDoIGoInTheStack()
2453     pFirst = pHead ? pHead->nextSib : pParent->firstChild;  in CirculateWindow()
2551     if (pPrev->firstChild == pWin)  in ReparentWindow()
2552         pPrev->firstChild = pWin->nextSib;  in ReparentWindow()
2574         pWin->nextSib = pParent->firstChild;  in ReparentWindow()
2576         if (pParent->firstChild)  in ReparentWindow()
2577             pParent->firstChild->prevSib = pWin;  in ReparentWindow()
2580         pParent->firstChild = pWin;  in ReparentWindow()
2618             if (pChild->firstChild) {  in RealizeTree()
2619                 pChild = pChild->firstChild;  in RealizeTree()
2750     for (pWin = pParent->firstChild; pWin; pWin = pWin->nextSib) {  in MapSubwindows()
2823             if (pChild->firstChild) {  in UnrealizeTree()
2824                 pChild = pChild->firstChild;  in UnrealizeTree()
2907     if (!pWin->firstChild)  in UnmapSubwindows()
2945                 pHead = pWin->firstChild;  in UnmapSubwindows()
3528     for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {  in ChangeWindowDeviceCursor()
3664         for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {  in SetRootClip()
3718         if (pWin->firstChild) {  in SetRootClip()
3719             anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin->firstChild,  in SetRootClip()
3720                                                             pWin->firstChild,  in SetRootClip()