急！急！急！ListView的标题(Column)怎么改变颜色？

[smallyan]

如题！哪样仁兄能帮帮小弟！

[smallyan]

为什么会报错

错在这行！
Result := CallWindowProc(nil, hwnd,uMsg, wParam, lParam);

[fei19790920]

procedure SetListHeadColor(hListView:HWND; Color:TColor);
var
hHeader: HWND;
OldProc: FARPROC;

function NewHeadProc(hwnd:HWND; uMsg:UINT;
wParam:WPARAM; lParam:LPARAM): Longint; stdcall;
var
Rect:TRect;
Canvas: TCanvas;
Bmp: TBitmap;
begin
Result := CallWindowProc(OldProc, hwnd,
uMsg, wParam, lParam);
if uMsg = WM_PAINT then
begin
GetClientRect(hwnd, Rect);
Bmp := TBitmap.Create;
Bmp.Width := Rect.Right;
Bmp.Height := Rect.Bottom;
Canvas := TCanvas.Create;
Canvas.Handle := GetDC(hwnd);
Bmp.Canvas.CopyRect(Rect, Canvas, Rect);
Bmp.Transparent := true;
Bmp.TransparentColor := clBtnFace;
Canvas.Brush.Color := Color;
Canvas.Rectangle(Rect);
Canvas.Draw(0, 0, Bmp);
ReleaseDC(hwnd, Canvas.Handle);
Canvas.Free; Bmp.Free;
end;
end;

begin
hHeader := FindWindowEx(hListView, 0,
'SysHeader32', Nil);
OldProc := FARPROC(SetWindowLong(hHeader,
GWL_WNDPROC, LongInt(@NewHeadProc)));
InvalidateRect(hHeader, Nil, FALSE);
end;

[bluesky23]

学习

[juliens]

把GetClientRect(hwnd, Rect);这句改成Windows.GetClientRect(hwnd, Rect);就行了！


Result := CallWindowProc(nil, hwnd,uMsg, wParam, lParam);这句没有错！

[aushqh]

这个会一直闪动，关注中。。。。

[jackystar]

这个画出来都是黑色？
有人搞定没？

[fj218]

引用CommCtrl单元，listview1的viewstyle设为vsReport。

procedure TForm1.Button1Click(Sender: TObject);
var
dc:hdc;
r1,r2:trect;
begin
hhwnd := SendMessage(listview1.Handle, LVM_GETHEADER, 0, 0);

dc:=getwindowdc(hhwnd);
getwindowrect(hhwnd,r1);
offsetrect(r1,-r1.Left,-r1.Top);
r2:=r1;
r2.Right:=listview1.Columns[0].Width;
fillrect(dc,rc2,getstockobject(white_brush));
r2.Left:=r2.Right;
r2.Right:=r2.Left+listview1.Columns[1].Width;
fillrect(dc,rc2,getstockobject(white_brush));
releasedc(hhwnd,dc);
end;
参考一下，自己再做修改

[jackie168]

修改樓上得來的：//效果好像還不如沒改過的，呵呵~~
uses CommCtrl;
procedure TForm1.Button1Click(Sender: TObject);
var
dc:hdc;
r1,r2:trect;
hhwnd:Thandle;
begin
hhwnd := SendMessage(listview1.Handle, LVM_GETHEADER, 0, 0);

dc:=getwindowdc(hhwnd);
getwindowrect(hhwnd,r1);
offsetrect(r1,-r1.Left,-r1.Top);
r2:=r1;
r2.Right:=listview1.Columns[0].Width;
fillrect(dc,r2,getstockobject(LTGRAY_BRUSH));
r2.Left:=r2.Right;
r2.Right:=r2.Left+listview1.Columns[1].Width;
fillrect(dc,r2,getstockobject(GRAY_BRUSH));
releasedc(hhwnd,dc);
end;