text: /*
   * Unit tests for scrollbar
   *
   * Copyright 2008 Lyutin Anatoly (Etersoft)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include <assert.h>
  #include <stdarg.h>
  #include <stdio.h>
  #include <windows.h>
  
  #include "wine/test.h"
  
  static HWND hScroll, hMainWnd;
  static BOOL bThemeActive = FALSE;
  
  static LRESULT CALLBACK MyWndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
  {
      switch(msg)
      {
  
      case WM_CREATE:
      {
          hScroll = CreateWindowA( "SCROLLBAR", "", WS_CHILD | WS_VISIBLE, 0, 0, 120, 100, hWnd, (HMENU)100, GetModuleHandleA(0), 0 );
  
          return 0;
      }
      case WM_DESTROY:
          PostQuitMessage(0);
          break;
      case WM_HSCROLL:
      case WM_VSCROLL:
          /* stop tracking */
          ReleaseCapture();
          return 0;
      default:
          return DefWindowProcA(hWnd, msg, wParam, lParam);
      }
      return 0;
  }
  static void scrollbar_test_track(void)
  {
      /* test that scrollbar tracking is terminated when
       * the control looses mouse capture */
      SendMessage( hScroll, WM_LBUTTONDOWN, 0, MAKELPARAM( 1, 1));
      /* a normal return from the sendmessage */
      /* not normal for instance by closing the windws */
      ok( IsWindow( hScroll), "Scrollbar has gone!\n");
  }
  
  static void scrollbar_test1(void)
  {
      BOOL ret;
  
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_DISABLE_BOTH );
      ok( ret, "The scrollbar should be disabled.\n" );
      ok( !IsWindowEnabled( hScroll ), "The scrollbar window should be disabled.\n" );
  
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_ENABLE_BOTH );
      ok( ret, "The scrollbar should be enabled.\n" );
      ok( IsWindowEnabled( hScroll ), "The scrollbar window should be enabled.\n" );
  
      /* test buttons separately */
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_DISABLE_LTUP );
      ok( ret, "The scrollbar LTUP button should be disabled.\n" );
      ok( IsWindowEnabled( hScroll ), "The scrollbar window should be enabled.\n" );
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_ENABLE_BOTH );
      ok( ret, "The scrollbar should be enabled.\n" );
      ok( IsWindowEnabled( hScroll ), "The scrollbar window should be enabled.\n" );
  
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_DISABLE_RTDN );
      ok( ret, "The scrollbar RTDN button should be disabled.\n" );
      ok( IsWindowEnabled( hScroll ), "The scrollbar window should be enabled.\n" );
      ret = EnableScrollBar( hScroll, SB_CTL, ESB_ENABLE_BOTH );
      ok( ret, "The scrollbar should be enabled.\n" );
      ok( IsWindowEnabled( hScroll ), "The scrollbar window should be enabled.\n" );
  }
  
  static void scrollbar_test2(void)
  {
      int ret;
  
      trace("The scrollbar is disabled.\n");
  
      EnableWindow( hScroll, FALSE );
      ok( !IsWindowEnabled( hScroll ), "The scroll should be disabled.\n" );
  
      ret = SetScrollPos( hScroll, SB_CTL, 30, TRUE);
      ok( !ret, "The position should not be set.\n" );
  
      ret = GetScrollPos( hScroll, SB_CTL);
      ok( !ret, "The position should be equal to zero\n");
  
      ret = SetScrollRange( hScroll, SB_CTL, 0, 100, TRUE );
      ok( ret, "The range should be set.\n" );
  
      ret = SetScrollPos( hScroll, SB_CTL, 30, TRUE);
      ok( !ret , "The position should not be set.\n" );
  
      ret = GetScrollPos( hScroll, SB_CTL);
      ok( ret == 30, "The position should be set!!!\n");
  
      trace("The scrollbar is enabled.\n");
  
      EnableWindow( hScroll, TRUE );
      ok( IsWindowEnabled( hScroll ), "The scroll should be enabled.\n" );
  
      ret = SetScrollPos( hScroll, SB_CTL, 30, TRUE);
      ok( ret == 30, "The position should be set.\n" );
  
      ret = GetScrollPos( hScroll, SB_CTL);
      ok( ret == 30, "The position should not be equal to zero\n");
  
      ret = SetScrollRange( hScroll, SB_CTL, 0, 100, TRUE );
      ok( ret, "The range should be set.\n" );
  
      ret = SetScrollPos( hScroll, SB_CTL, 30, TRUE);
      ok( ret == 30, "The position should be set.\n" );
  
      ret = GetScrollPos( hScroll, SB_CTL);
      ok( ret == 30, "The position should not be equal to zero\n");
  }
  
  static void scrollbar_test3(void)
  {
      BOOL    ret;
  
      ret = ShowScrollBar( hScroll, SB_CTL, FALSE );
      ok( ret, "The ShowScrollBar() should not failed.\n" );
      ok( !IsWindowVisible( hScroll ), "The scrollbar window should not be visible\n" );
  
      ret = ShowScrollBar( hScroll, SB_CTL, TRUE );
      ok( ret, "The ShowScrollBar() should not failed.\n" );
      ok( !IsWindowVisible( hScroll ), "The scrollbar window should be visible\n" );
  
      ret = ShowScrollBar( NULL, SB_CTL, TRUE );
      ok( !ret, "The ShowScrollBar() should failed.\n" );
  
  }
  
  static void scrollbar_test4(void)
  {
      BOOL ret;
      SCROLLBARINFO sbi;
      RECT rect;
      BOOL (WINAPI *pGetScrollBarInfo)(HWND, LONG, LPSCROLLBARINFO);
  
      pGetScrollBarInfo = (void*)GetProcAddress(GetModuleHandleA("user32.dll"), "GetScrollBarInfo");
      if (!pGetScrollBarInfo)
      {
          win_skip("GetScrollBarInfo is not available\n");
          return;
      }
  
      /* Test GetScrollBarInfo to make sure it returns rcScrollBar in screen
       * coordinates. */
      sbi.cbSize = sizeof(sbi);
      ret = pGetScrollBarInfo( hScroll, OBJID_CLIENT, &sbi);
      ok( ret, "The GetScrollBarInfo() call should not fail.\n" );
      GetWindowRect( hScroll, &rect );
      ok( ret, "The GetWindowRect() call should not fail.\n" );
      ok( !(sbi.rgstate[0] & (STATE_SYSTEM_INVISIBLE|STATE_SYSTEM_OFFSCREEN)),
          "unexpected rgstate(0x%x)\n", sbi.rgstate[0]);
      ok( EqualRect(&rect, &sbi.rcScrollBar),
          "WindowRect(%d, %d, %d, %d) != rcScrollBar(%d, %d, %d, %d)\n",
          rect.top, rect.left, rect.bottom, rect.right,
          sbi.rcScrollBar.top, sbi.rcScrollBar.left,
          sbi.rcScrollBar.bottom, sbi.rcScrollBar.right );
  
      /* Test windows horizontal and vertical scrollbar to make sure rcScrollBar
       * is still returned in screen coordinates by moving the window, and
       * making sure that it shifts the rcScrollBar value. */
      ShowWindow( hMainWnd, SW_SHOW );
      sbi.cbSize = sizeof(sbi);
      ret = pGetScrollBarInfo( hMainWnd, OBJID_HSCROLL, &sbi);
      ok( ret, "The GetScrollBarInfo() call should not fail.\n" );
      GetWindowRect( hMainWnd, &rect );
      ok( ret, "The GetWindowRect() call should not fail.\n" );
      MoveWindow( hMainWnd, rect.left+5, rect.top+5,
                  rect.right-rect.left, rect.bottom-rect.top, TRUE );
      rect = sbi.rcScrollBar;
      OffsetRect(&rect, 5, 5);
      ret = pGetScrollBarInfo( hMainWnd, OBJID_HSCROLL, &sbi);
      ok( ret, "The GetScrollBarInfo() call should not fail.\n" );
      ok( EqualRect(&rect, &sbi.rcScrollBar),
          "PreviousRect(%d, %d, %d, %d) != CurrentRect(%d, %d, %d, %d)\n",
          rect.top, rect.left, rect.bottom, rect.right,
          sbi.rcScrollBar.top, sbi.rcScrollBar.left,
          sbi.rcScrollBar.bottom, sbi.rcScrollBar.right );
  
      sbi.cbSize = sizeof(sbi);
      ret = pGetScrollBarInfo( hMainWnd, OBJID_VSCROLL, &sbi);
      ok( ret, "The GetScrollBarInfo() call should not fail.\n" );
      GetWindowRect( hMainWnd, &rect );
      ok( ret, "The GetWindowRect() call should not fail.\n" );
      MoveWindow( hMainWnd, rect.left+5, rect.top+5,
                  rect.right-rect.left, rect.bottom-rect.top, TRUE );
      rect = sbi.rcScrollBar;
      OffsetRect(&rect, 5, 5);
      ret = pGetScrollBarInfo( hMainWnd, OBJID_VSCROLL, &sbi);
      ok( ret, "The GetScrollBarInfo() call should not fail.\n" );
      ok( EqualRect(&rect, &sbi.rcScrollBar),
          "PreviousRect(%d, %d, %d, %d) != CurrentRect(%d, %d, %d, %d)\n",
          rect.top, rect.left, rect.bottom, rect.right,
          sbi.rcScrollBar.top, sbi.rcScrollBar.left,
          sbi.rcScrollBar.bottom, sbi.rcScrollBar.right );
  }
  
  /* some tests designed to show that Horizontal and Vertical
   * window scroll bar info are not created independently */
  static void scrollbar_test_default( DWORD style)
  {
      INT min, max, ret;
      DWORD winstyle;
      HWND hwnd;
      SCROLLINFO si = { sizeof( SCROLLINFO), SIF_TRACKPOS };
  
      hwnd = CreateWindowExA( 0, "static", "", WS_POPUP | style,
                  0, 0, 10, 10, 0, 0, 0, NULL);
      assert( hwnd != 0);
  
      ret = GetScrollRange( hwnd, SB_VERT, &min, &max);
      ok( ret ||
              broken( !ret) /* Win 9x/ME */ , "GetScrollRange failed.\n");
      /* range is 0,0 if there are no H or V scroll bars. 0,100 otherwise */
      if( !( style & ( WS_VSCROLL | WS_HSCROLL)))
          ok( min == 0 && max == 0,
                  "Scroll bar range is %d,%d. Expected 0,0. Style %08x\n", min, max, style);
      else
          ok(( min == 0 && max == 100) ||
                  broken( min == 0 && max == 0), /* Win 9x/ME */
                  "Scroll bar range is %d,%d. Expected 0,100. Style %08x\n", min, max, style);
      ret = GetScrollRange( hwnd, SB_HORZ, &min, &max);
      ok( ret ||
              broken( !ret) /* Win 9x/ME */ , "GetScrollRange failed.\n");
      /* range is 0,0 if there are no H or V scroll bars. 0,100 otherwise */
      if( !( style & ( WS_VSCROLL | WS_HSCROLL)))
          ok( min == 0 && max == 0,
                  "Scroll bar range is %d,%d. Expected 0,0. Style %08x\n", min, max, style);
      else
          ok(( min == 0 && max == 100) ||
                  broken( min == 0 && max == 0), /* Win 9x/ME */
                  "Scroll bar range is %d,%d. Expected 0,100. Style %08x\n", min, max, style);
      /* test GetScrollInfo, vist for vertical SB */
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should fail if no H or V scroll bar styles are present. Succeed otherwise */
      if( !( style & ( WS_VSCROLL | WS_HSCROLL)))
          ok( !ret, "GetScrollInfo succeeded unexpectedly. Style is %08x\n", style);
      else
          ok( ret ||
                  broken( !ret), /* Win 9x/ME */
                  "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      /* Same for Horizontal SB */
      ret = GetScrollInfo( hwnd, SB_HORZ, &si);
      /* should fail if no H or V scroll bar styles are present. Succeed otherwise */
      if( !( style & ( WS_VSCROLL | WS_HSCROLL)))
          ok( !ret, "GetScrollInfo succeeded unexpectedly. Style is %08x\n", style);
      else
          ok( ret ||
                  broken( !ret), /* Win 9x/ME */
                  "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      /* now set the Vertical Scroll range to something that could be the default value it
       * already has */;
      ret = SetScrollRange( hwnd, SB_VERT, 0, 100, FALSE);
      ok( ret, "SetScrollRange failed.\n");
      /* and request the Horizontal range */
      ret = GetScrollRange( hwnd, SB_HORZ, &min, &max);
      ok( ret, "GetScrollRange failed.\n");
      /* now the range should be 0,100 in ALL cases */
      ok( min == 0 && max == 100,
              "Scroll bar range is %d,%d. Expected 0,100. Style %08x\n", min, max, style);
      /* See what is different now for GetScrollRange */
      ret = GetScrollInfo( hwnd, SB_HORZ, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      /* report the windows style */
      winstyle = GetWindowLongA( hwnd, GWL_STYLE );
      /* WS_VSCROLL added to the window style */
      if( !(style & WS_VSCROLL))
      {
          if (bThemeActive || style != WS_HSCROLL)
  todo_wine
              ok( (winstyle & (WS_HSCROLL|WS_VSCROLL)) == ( style | WS_VSCROLL),
                  "unexpected style change %08x/%08x\n", winstyle, style);
          else
              ok( (winstyle & (WS_HSCROLL|WS_VSCROLL)) == style,
                  "unexpected style change %08x/%08x\n", winstyle, style);
      }
      /* do the test again with H and V reversed.
       * Start with a clean window */
      DestroyWindow( hwnd);
      hwnd = CreateWindowExA( 0, "static", "", WS_POPUP | style,
                  0, 0, 10, 10, 0, 0, 0, NULL);
      assert( hwnd != 0);
      /* Set Horizontal Scroll range to something that could be the default value it
       * already has */;
      ret = SetScrollRange( hwnd, SB_HORZ, 0, 100, FALSE);
      ok( ret, "SetScrollRange failed.\n");
      /* and request the Vertical range */
      ret = GetScrollRange( hwnd, SB_VERT, &min, &max);
      ok( ret, "GetScrollRange failed.\n");
      /* now the range should be 0,100 in ALL cases */
      ok( min == 0 && max == 100,
              "Scroll bar range is %d,%d. Expected 0,100. Style %08x\n", min, max, style);
      /* See what is different now for GetScrollRange */
      ret = GetScrollInfo( hwnd, SB_HORZ, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      /* report the windows style */
      winstyle = GetWindowLongA( hwnd, GWL_STYLE );
      /* WS_HSCROLL added to the window style */
      if( !(style & WS_HSCROLL))
      {
          if (bThemeActive || style != WS_VSCROLL)
  todo_wine
              ok( (winstyle & (WS_HSCROLL|WS_VSCROLL)) == ( style | WS_HSCROLL),
                  "unexpected style change %08x/%08x\n", winstyle, style);
          else
              ok( (winstyle & (WS_HSCROLL|WS_VSCROLL)) == style,
                  "unexpected style change %08x/%08x\n", winstyle, style);
      }
      /* Slightly change the test to use SetScrollInfo
       * Start with a clean window */
      DestroyWindow( hwnd);
      hwnd = CreateWindowExA( 0, "static", "", WS_POPUP | style,
                  0, 0, 10, 10, 0, 0, 0, NULL);
      assert( hwnd != 0);
      /* set Horizontal position with SetScrollInfo */
      si.nPos = 0;
      si.nMin = 11;
      si.nMax = 22;
      si.fMask |= SIF_RANGE;
      ret = SetScrollInfo( hwnd, SB_HORZ, &si, FALSE);
      ok( ret, "SetScrollInfo failed. Style is %08x\n", style);
      /* and request the Vertical range */
      ret = GetScrollRange( hwnd, SB_VERT, &min, &max);
      ok( ret, "GetScrollRange failed.\n");
      /* now the range should be 0,100 in ALL cases */
      ok( min == 0 && max == 100,
              "Scroll bar range is %d,%d. Expected 0,100. Style %08x\n", min, max, style);
      /* See what is different now for GetScrollRange */
      ret = GetScrollInfo( hwnd, SB_HORZ, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should succeed in ALL cases */
      ok( ret, "GetScrollInfo failed unexpectedly. Style is %08x\n", style);
      /* also test if the window scroll bars are enabled */
      ret = EnableScrollBar( hwnd, SB_VERT, ESB_ENABLE_BOTH);
      ok( !ret, "Vertical window scroll bar was not enabled\n");
      ret = EnableScrollBar( hwnd, SB_HORZ, ESB_ENABLE_BOTH);
      ok( !ret, "Horizontal window scroll bar was not enabled\n");
      DestroyWindow( hwnd);
      /* finally, check if adding a WS_[HV]SCROLL style of a window makes the scroll info
       * available */
      if( style & (WS_HSCROLL | WS_VSCROLL)) return;/* only test if not yet set */
      /* Start with a clean window */
      DestroyWindow( hwnd);
      hwnd = CreateWindowExA( 0, "static", "", WS_POPUP ,
                  0, 0, 10, 10, 0, 0, 0, NULL);
      assert( hwnd != 0);
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should fail */
      ok( !ret, "GetScrollInfo succeeded unexpectedly. Style is %08x\n", style);
      /* add scroll styles */
      winstyle = GetWindowLongA( hwnd, GWL_STYLE );
      SetWindowLongW( hwnd, GWL_STYLE, winstyle | WS_VSCROLL | WS_HSCROLL);
      ret = GetScrollInfo( hwnd, SB_VERT, &si);
      /* should still fail */
      ok( !ret, "GetScrollInfo succeeded unexpectedly. Style is %08x\n", style);
      /* clean up */
      DestroyWindow( hwnd);
  }
  
  static LRESULT CALLBACK scroll_init_proc(HWND hwnd, UINT msg,
                                          WPARAM wparam, LPARAM lparam)
  {
      SCROLLINFO horz, vert;
      CREATESTRUCTA *cs = (CREATESTRUCTA *)lparam;
      BOOL h_ret, v_ret;
  
      switch(msg)
      {
          case WM_NCCREATE:
              return cs->lpCreateParams ? DefWindowProcA(hwnd, msg, wparam, lparam) :
                                          TRUE;
  
          case WM_CREATE:
              horz.cbSize = sizeof horz;
              horz.fMask  = SIF_ALL;
              horz.nMin   = 0xdeadbeaf;
              horz.nMax   = 0xbaadc0de;
              vert = horz;
              h_ret = GetScrollInfo(hwnd, SB_HORZ, &horz);
              v_ret = GetScrollInfo(hwnd, SB_VERT, &vert);
  
              if(cs->lpCreateParams)
              {
                  /* WM_NCCREATE was passed to DefWindowProc */
                  if(cs->style & (WS_VSCROLL | WS_HSCROLL))
                  {
                      ok(h_ret && v_ret, "GetScrollInfo() should return NON-zero "
                              "but got h_ret=%d v_ret=%d\n", h_ret, v_ret);
                      ok(vert.nMin == 0 && vert.nMax == 100,
                              "unexpected init values(SB_VERT): min=%d max=%d\n",
                              vert.nMin, vert.nMax);
                      ok(horz.nMin == 0 && horz.nMax == 100,
                              "unexpected init values(SB_HORZ): min=%d max=%d\n",
                              horz.nMin, horz.nMax);
                  }
                  else
                  {
                      ok(!h_ret && !v_ret, "GetScrollInfo() should return zeru, "
                              "but got h_ret=%d v_ret=%d\n", h_ret, v_ret);
                      ok(vert.nMin == 0xdeadbeaf && vert.nMax == 0xbaadc0de,
                              "unexpected  initialization(SB_VERT): min=%d max=%d\n",
                              vert.nMin, vert.nMax);
                      ok(horz.nMin == 0xdeadbeaf && horz.nMax == 0xbaadc0de,
                              "unexpected  initialization(SB_HORZ): min=%d max=%d\n",
                              horz.nMin, horz.nMax);
                  }
              }
              else
              {
                  ok(!h_ret && !v_ret, "GetScrollInfo() should return zeru, "
                      "but got h_ret=%d v_ret=%d\n", h_ret, v_ret);
                  ok(horz.nMin == 0xdeadbeaf && horz.nMax == 0xbaadc0de &&
                      vert.nMin == 0xdeadbeaf && vert.nMax == 0xbaadc0de,
                          "unexpected initialization\n");
              }
              return FALSE; /* abort creation */
  
          default:
              /* need for WM_GETMINMAXINFO, which precedes WM_NCCREATE */
              return 0;
      }
  }
  
  static void scrollbar_test_init(void)
  {
      WNDCLASSEXA wc;
      CHAR cls_name[] = "scroll_test_class";
      LONG style[] = {WS_VSCROLL, WS_HSCROLL, WS_VSCROLL | WS_HSCROLL, 0};
      int i;
  
      memset( &wc, 0, sizeof wc );
      wc.cbSize        = sizeof wc;
      wc.style         = CS_VREDRAW | CS_HREDRAW;
      wc.hInstance     = GetModuleHandleA(0);
      wc.hCursor       = LoadCursorA(NULL, IDC_ARROW);
      wc.hbrBackground = GetStockObject(WHITE_BRUSH);
      wc.lpszClassName = cls_name;
      wc.lpfnWndProc   = scroll_init_proc;
      RegisterClassExA(&wc);
  
      for(i = 0; i < sizeof style / sizeof style[0]; i++)
      {
          /* need not to destroy these windows due creation abort */
          CreateWindowExA(0, cls_name, NULL, style[i],
                  100, 100, 100, 100, NULL, NULL, wc.hInstance, (LPVOID)TRUE);
          CreateWindowExA(0, cls_name, NULL, style[i],
                  100, 100, 100, 100, NULL, NULL, wc.hInstance, (LPVOID)FALSE);
      }
      UnregisterClassA(cls_name, wc.hInstance);
  }
  
  START_TEST ( scroll )
  {
      WNDCLASSA wc;
      HMODULE hUxtheme;
      BOOL (WINAPI * pIsThemeActive)(VOID);
  
      wc.style = CS_HREDRAW | CS_VREDRAW;
      wc.cbClsExtra = 0;
      wc.cbWndExtra = 0;
      wc.hInstance = GetModuleHandleA(NULL);
      wc.hIcon = NULL;
      wc.hCursor = LoadCursorA(NULL, IDC_IBEAM);
      wc.hbrBackground = GetSysColorBrush(COLOR_WINDOW);
      wc.lpszMenuName = NULL;
      wc.lpszClassName = "MyTestWnd";
      wc.lpfnWndProc = MyWndProc;
      RegisterClassA(&wc);
  
      hMainWnd = CreateWindowExA( 0, "MyTestWnd", "Scroll",
        WS_OVERLAPPEDWINDOW|WS_VSCROLL|WS_HSCROLL,
        CW_USEDEFAULT, CW_USEDEFAULT, 100, 100, NULL, NULL, GetModuleHandleA(NULL), 0 );
  
      ok(hMainWnd != NULL, "Failed to create parent window. Tests aborted.\n");
      if (!hMainWnd) return;
  
      assert( hScroll );
  
      scrollbar_test1();
      scrollbar_test2();
      scrollbar_test3();
      scrollbar_test4();
      scrollbar_test_track();
  
      /* Some test results vary depending of theming being active or not */
      hUxtheme = LoadLibraryA("uxtheme.dll");
      if (hUxtheme)
      {
          pIsThemeActive = (void*)GetProcAddress(hUxtheme, "IsThemeActive");
          if (pIsThemeActive)
              bThemeActive = pIsThemeActive();
          FreeLibrary(hUxtheme);
      }
  
      scrollbar_test_default( 0);
      scrollbar_test_default( WS_HSCROLL);
      scrollbar_test_default( WS_VSCROLL);
      scrollbar_test_default( WS_HSCROLL | WS_VSCROLL);
  
      scrollbar_test_init();
  
      DestroyWindow(hScroll);
      DestroyWindow(hMainWnd);
  }
  