有空研究一下OwnerDraw和三种Windows风格CS_OWNDC和CS_PARENTDC和CS_CLASSDC

就在StdCtrls.pas, ExtCtrls.pas和Buttons.pas三个类里研究就够了，这是初步的搜索结果：

---------- 在打开的文档中查找 ----------
"G:\StdCtrls.pas"(,):  TOwnerDrawState = Windows.TOwnerDrawState;
"G:\StdCtrls.pas"(,):  {$NODEFINE TOwnerDrawState}
"G:\StdCtrls.pas"(,):    Rect: TRect; State: TOwnerDrawState) of object;
"G:\StdCtrls.pas"(,):  TComboBoxStyle = (csDropDown, csSimple, csDropDownList, csOwnerDrawFixed,
"G:\StdCtrls.pas"(,):    csOwnerDrawVariable);
"G:\StdCtrls.pas"(,):      State: TOwnerDrawState); virtual;
"G:\StdCtrls.pas"(,):  TListBoxStyle = (lbStandard, lbOwnerDrawFixed, lbOwnerDrawVariable,
"G:\StdCtrls.pas"(,):    lbVirtual, lbVirtualOwnerDraw);
"G:\StdCtrls.pas"(,):      State: TOwnerDrawState); virtual;
"G:\StdCtrls.pas"(,):  State: TOwnerDrawState);
"G:\StdCtrls.pas"(,):  if FStyle in [csOwnerDrawFixed, csOwnerDrawVariable] then
"G:\StdCtrls.pas"(,):    CBS_DROPDOWNLIST or CBS_OWNERDRAWFIXED,
"G:\StdCtrls.pas"(,):    CBS_DROPDOWNLIST or CBS_OWNERDRAWVARIABLE);
"G:\StdCtrls.pas"(,):  State: TOwnerDrawState;
"G:\StdCtrls.pas"(,):    State := TOwnerDrawState(LongRec(itemState).Lo);
"G:\StdCtrls.pas"(,):    if FStyle = csOwnerDrawVariable then
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if (Index <> -) and not (ListBox.Style in [lbVirtual, lbVirtualOwnerDraw]) then
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if ListBox.Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then exit;
"G:\StdCtrls.pas"(,):    if Value in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):      lbVirtualOwnerDraw: Style := lbOwnerDrawFixed;
"G:\StdCtrls.pas"(,):    (, LBS_OWNERDRAWFIXED, LBS_OWNERDRAWVARIABLE, LBS_OWNERDRAWFIXED,
"G:\StdCtrls.pas"(,):     LBS_OWNERDRAWFIXED);
"G:\StdCtrls.pas"(,):      Data[Self.Style in [lbVirtual, lbVirtualOwnerDraw]] or
"G:\StdCtrls.pas"(,):    if (Style in [lbVirtual, lbVirtualOwnerDraw]) then
"G:\StdCtrls.pas"(,):    if (Style in [lbVirtual, lbVirtualOwnerDraw]) then
"G:\StdCtrls.pas"(,):  State: TOwnerDrawState);
"G:\StdCtrls.pas"(,):      if (Style in [lbVirtual, lbVirtualOwnerDraw]) then
"G:\StdCtrls.pas"(,):  State: TOwnerDrawState;
"G:\StdCtrls.pas"(,):    State := TOwnerDrawState(LongRec(itemState).Lo);
"G:\StdCtrls.pas"(,):    if FStyle = lbOwnerDrawVariable then
"G:\StdCtrls.pas"(,):    if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\StdCtrls.pas"(,):  if Style in [lbVirtual, lbVirtualOwnerDraw] then
"G:\ExtCtrls.pas"(,):    procedure DrawItem(Index: Integer; Rect: TRect; State: TOwnerDrawState); override;
"G:\ExtCtrls.pas"(,):  inherited Style := csOwnerDrawFixed;
"G:\ExtCtrls.pas"(,):  State: TOwnerDrawState);
"G:\Buttons.pas"(,):  with Params do Style := Style or BS_OWNERDRAW;
共找到  处。
输出完成 (耗时:  秒)