ListView的例子,Treeview也差不多吧Using Custom Draw
The following code fragment is a portion of a WM_NOTIFY handler that illustrates how to handle custom draw notifications sent to a list view control:LPNMLISTVIEW pnm = (LPNMLISTVIEW)lParam;switch (pnm->hdr.code){
...
case NM_CUSTOMDRAW: LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)lParam; switch(lplvcd->nmcd.dwDrawStage) {
case CDDS_PREPAINT :
return CDRF_NOTIFYITEMDRAW;
case CDDS_ITEMPREPAINT:
SelectObject(lplvcd->nmcd.hdc,
GetFontForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam) );
lplvcd->clrText = GetColorForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam);
lplvcd->clrTextBk = GetBkColorForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam);
/* At this point, you can change the background colors for the item
and any subitems and return CDRF_NEWFONT. If the list view control
is in report mode, you can simply return CDRF_NOTIFYSUBITEMREDRAW
to customize the item's subitems individually */ ...
return CDRF_NEWFONT;
// or return CDRF_NOTIFYSUBITEMREDRAW;
case CDDS_SUBITEM | CDDS_ITEMPREPAINT:
SelectObject(lplvcd->nmcd.hdc,
GetFontForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));
lplvcd->clrText = GetColorForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));
lplvcd->clrTextBk = GetBkColorForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));/* This notification is received only if you are in report mode and
returned CDRF_NOTIFYSUBITEMREDRAW in the previous step. At
this point, you can change the background colors for the
subitem and return CDRF_NEWFONT.*/ ...
return CDRF_NEWFONT;
}
...
}
The following code fragment is a portion of a WM_NOTIFY handler that illustrates how to handle custom draw notifications sent to a list view control:LPNMLISTVIEW pnm = (LPNMLISTVIEW)lParam;switch (pnm->hdr.code){
...
case NM_CUSTOMDRAW: LPNMLVCUSTOMDRAW lplvcd = (LPNMLVCUSTOMDRAW)lParam; switch(lplvcd->nmcd.dwDrawStage) {
case CDDS_PREPAINT :
return CDRF_NOTIFYITEMDRAW;
case CDDS_ITEMPREPAINT:
SelectObject(lplvcd->nmcd.hdc,
GetFontForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam) );
lplvcd->clrText = GetColorForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam);
lplvcd->clrTextBk = GetBkColorForItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam);
/* At this point, you can change the background colors for the item
and any subitems and return CDRF_NEWFONT. If the list view control
is in report mode, you can simply return CDRF_NOTIFYSUBITEMREDRAW
to customize the item's subitems individually */ ...
return CDRF_NEWFONT;
// or return CDRF_NOTIFYSUBITEMREDRAW;
case CDDS_SUBITEM | CDDS_ITEMPREPAINT:
SelectObject(lplvcd->nmcd.hdc,
GetFontForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));
lplvcd->clrText = GetColorForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));
lplvcd->clrTextBk = GetBkColorForSubItem(lplvcd->nmcd.dwItemSpec,
lplvcd->nmcd.lItemlParam,
lplvcd->iSubItem));/* This notification is received only if you are in report mode and
returned CDRF_NOTIFYSUBITEMREDRAW in the previous step. At
this point, you can change the background colors for the
subitem and return CDRF_NEWFONT.*/ ...
return CDRF_NEWFONT;
}
...
}
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