dlls/comctl32/progress.c

   1 /*
   2  * Progress control
   3  *
   4  * Copyright 1997, 2002 Dimitrie O. Paun
   5  * Copyright 1998, 1999 Eric Kohl
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * NOTE
  22  *
  23  * This code was audited for completeness against the documented features
  24  * of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
  25  *
  26  * Unless otherwise noted, we believe this code to be complete, as per
  27  * the specification mentioned above.
  28  * If you discover missing features, or bugs, please note them below.
  29  *
  30  */
  31
  32 #include <stdarg.h>
  33 #include <string.h>
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38 #include "winnls.h"
  39 #include "commctrl.h"
  40 #include "comctl32.h"
  41 #include "wine/debug.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(progress);
  44
  45 typedef struct
  46 {
  47     HWND      Self;         /* The window handle for this control */
  48     INT       CurVal;       /* Current progress value */
  49     INT       MinVal;       /* Minimum progress value */
  50     INT       MaxVal;       /* Maximum progress value */
  51     INT       Step;         /* Step to use on PMB_STEPIT */
  52     INT       MarqueePos;   /* Marquee animation position */
  53     BOOL      Marquee;      /* Whether the marquee animation is enabled */
  54     COLORREF  ColorBar;     /* Bar color */
  55     COLORREF  ColorBk;      /* Background color */
  56     HFONT     Font;         /* Handle to font (not unused) */
  57 } PROGRESS_INFO;
  58
  59 /* Control configuration constants */
  60
  61 #define LED_GAP           2
  62 #define MARQUEE_LEDS      5
  63 #define ID_MARQUEE_TIMER  1
  64
  65 /***********************************************************************
  66  * PROGRESS_Invalidate
  67  *
  68  * Invalide the range between old and new pos.
  69  */
  70 static void PROGRESS_Invalidate( PROGRESS_INFO *infoPtr, INT old, INT new )
  71 {
  72     LONG style = GetWindowLongW (infoPtr->Self, GWL_STYLE);
  73     RECT rect;
  74     int oldPos, newPos, ledWidth;
  75
  76     GetClientRect (infoPtr->Self, &rect);
  77     InflateRect(&rect, -1, -1);
  78
  79     if (style & PBS_VERTICAL)
  80     {
  81         oldPos = rect.bottom - MulDiv (old - infoPtr->MinVal, rect.bottom - rect.top,
  82                                        infoPtr->MaxVal - infoPtr->MinVal);
  83         newPos = rect.bottom - MulDiv (new - infoPtr->MinVal, rect.bottom - rect.top,
  84                                        infoPtr->MaxVal - infoPtr->MinVal);
  85         ledWidth = MulDiv (rect.right - rect.left, 2, 3);
  86         rect.top = min( oldPos, newPos );
  87         rect.bottom = max( oldPos, newPos );
  88         if (!(style & PBS_SMOOTH)) rect.top -= ledWidth;
  89         InvalidateRect( infoPtr->Self, &rect, oldPos < newPos );
  90     }
  91     else
  92     {
  93         oldPos = rect.left + MulDiv (old - infoPtr->MinVal, rect.right - rect.left,
  94                                      infoPtr->MaxVal - infoPtr->MinVal);
  95         newPos = rect.left + MulDiv (new - infoPtr->MinVal, rect.right - rect.left,
  96                                      infoPtr->MaxVal - infoPtr->MinVal);
  97         ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
  98         rect.left = min( oldPos, newPos );
  99         rect.right = max( oldPos, newPos );
 100         if (!(style & PBS_SMOOTH)) rect.right += ledWidth;
 101         InvalidateRect( infoPtr->Self, &rect, oldPos > newPos );
 102     }
 103 }
 104
 105
 106 /***********************************************************************
 107  * PROGRESS_Draw
 108  * Draws the progress bar.
 109  */
 110 static LRESULT PROGRESS_Draw (PROGRESS_INFO *infoPtr, HDC hdc)
 111 {
 112     HBRUSH hbrBar, hbrBk;
 113     int rightBar, rightMost, ledWidth;
 114     RECT rect;
 115     DWORD dwStyle;
 116
 117     TRACE("(infoPtr=%p, hdc=%p)\n", infoPtr, hdc);
 118
 119     /* get the required bar brush */
 120     if (infoPtr->ColorBar == CLR_DEFAULT)
 121         hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
 122     else
 123         hbrBar = CreateSolidBrush (infoPtr->ColorBar);
 124
 125     if (infoPtr->ColorBk == CLR_DEFAULT)
 126         hbrBk = GetSysColorBrush(COLOR_3DFACE);
 127     else
 128         hbrBk = CreateSolidBrush(infoPtr->ColorBk);
 129
 130     /* get client rectangle */
 131     GetClientRect (infoPtr->Self, &rect);
 132     FrameRect( hdc, &rect, hbrBk );
 133     InflateRect(&rect, -1, -1);
 134
 135     /* get the window style */
 136     dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
 137
 138     /* compute extent of progress bar */
 139     if (dwStyle & PBS_VERTICAL) {
 140         rightBar  = rect.bottom -
 141                     MulDiv (infoPtr->CurVal - infoPtr->MinVal,
 142                             rect.bottom - rect.top,
 143                             infoPtr->MaxVal - infoPtr->MinVal);
 144         ledWidth  = MulDiv (rect.right - rect.left, 2, 3);
 145         rightMost = rect.top;
 146     } else {
 147         rightBar = rect.left +
 148                    MulDiv (infoPtr->CurVal - infoPtr->MinVal,
 149                            rect.right - rect.left,
 150                            infoPtr->MaxVal - infoPtr->MinVal);
 151         ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
 152         rightMost = rect.right;
 153     }
 154
 155     /* now draw the bar */
 156     if (dwStyle & PBS_SMOOTH)
 157     {
 158         if (dwStyle & PBS_VERTICAL)
 159         {
 160             if (dwStyle & PBS_MARQUEE)
 161             {
 162                 INT old_top, old_bottom, ledMStart, leds;
 163                 old_top = rect.top;
 164                 old_bottom = rect.bottom;
 165
 166                 leds = rect.bottom - rect.top;
 167                 ledMStart = (infoPtr->MarqueePos + MARQUEE_LEDS) - leds;
 168
 169                 if(ledMStart > 0)
 170                 {
 171                     rect.top = max(rect.bottom - ledMStart, old_top);
 172                     FillRect(hdc, &rect, hbrBar);
 173                     rect.bottom = rect.top;
 174                 }
 175                 if(infoPtr->MarqueePos > 0)
 176                 {
 177                     rect.top = max(old_bottom - infoPtr->MarqueePos, old_top);
 178                     FillRect(hdc, &rect, hbrBk);
 179                     rect.bottom = rect.top;
 180                 }
 181                 if(rect.top >= old_top)
 182                 {
 183                     rect.top = max(rect.bottom - MARQUEE_LEDS, old_top);
 184                     FillRect(hdc, &rect, hbrBar);
 185                     rect.bottom = rect.top;
 186                 }
 187                 if(rect.top >= old_top)
 188                 {
 189                     rect.top = old_top;
 190                     FillRect(hdc, &rect, hbrBk);
 191                 }
 192             }
 193             else
 194             {
 195                 INT old_top = rect.top;
 196                 rect.top = rightBar;
 197                 FillRect(hdc, &rect, hbrBar);
 198                 rect.bottom = rect.top;
 199                 rect.top = old_top;
 200                 FillRect(hdc, &rect, hbrBk);
 201             }
 202         }
 203         else
 204         {
 205             if (dwStyle & PBS_MARQUEE)
 206             {
 207                 INT old_left, old_right, ledMStart, leds;
 208                 old_left = rect.left;
 209                 old_right = rect.right;
 210
 211                 leds = rect.right - rect.left;
 212                 ledMStart = (infoPtr->MarqueePos + MARQUEE_LEDS) - leds;
 213                 rect.right = rect.left;
 214
 215                 if(ledMStart > 0)
 216                 {
 217                     rect.right = min(rect.left + ledMStart, old_right);
 218                     FillRect(hdc, &rect, hbrBar);
 219                     rect.left = rect.right;
 220                 }
 221                 if(infoPtr->MarqueePos > 0)
 222                 {
 223                     rect.right = min(old_left + infoPtr->MarqueePos, old_right);
 224                     FillRect(hdc, &rect, hbrBk);
 225                     rect.left = rect.right;
 226                 }
 227                 if(rect.right < old_right)
 228                 {
 229                     rect.right = min(rect.left + MARQUEE_LEDS, old_right);
 230                     FillRect(hdc, &rect, hbrBar);
 231                     rect.left = rect.right;
 232                 }
 233                 if(rect.right < old_right)
 234                 {
 235                     rect.right = old_right;
 236                     FillRect(hdc, &rect, hbrBk);
 237                 }
 238             }
 239             else
 240             {
 241                 INT old_right = rect.right;
 242                 rect.right = rightBar;
 243                 FillRect(hdc, &rect, hbrBar);
 244                 rect.left = rect.right;
 245                 rect.right = old_right;
 246                 FillRect(hdc, &rect, hbrBk);
 247             }
 248         }
 249     } else {
 250         if (dwStyle & PBS_VERTICAL) {
 251             if (dwStyle & PBS_MARQUEE)
 252             {
 253                 INT i, old_top, old_bottom, ledMStart, leds;
 254                 old_top = rect.top;
 255                 old_bottom = rect.bottom;
 256
 257                 leds = ((rect.bottom - rect.top) + (ledWidth + LED_GAP) - 1) / (ledWidth + LED_GAP);
 258                 ledMStart = (infoPtr->MarqueePos + MARQUEE_LEDS) - leds;
 259
 260                 while(ledMStart > 0)
 261                 {
 262                     rect.top = max(rect.bottom - ledWidth, old_top);
 263                     FillRect(hdc, &rect, hbrBar);
 264                     rect.bottom = rect.top;
 265                     rect.top -= LED_GAP;
 266                     if (rect.top <= old_top) break;
 267                     FillRect(hdc, &rect, hbrBk);
 268                     rect.bottom = rect.top;
 269                     ledMStart--;
 270                 }
 271                 if(infoPtr->MarqueePos > 0)
 272                 {
 273                     rect.top = max(old_bottom - (infoPtr->MarqueePos * (ledWidth + LED_GAP)), old_top);
 274                     FillRect(hdc, &rect, hbrBk);
 275                     rect.bottom = rect.top;
 276                 }
 277                 for(i = 0; i < MARQUEE_LEDS && rect.top >= old_top; i++)
 278                 {
 279                     rect.top = max(rect.bottom - ledWidth, old_top);
 280                     FillRect(hdc, &rect, hbrBar);
 281                     rect.bottom = rect.top;
 282                     rect.top -= LED_GAP;
 283                     if (rect.top <= old_top) break;
 284                     FillRect(hdc, &rect, hbrBk);
 285                     rect.bottom = rect.top;
 286                 }
 287                 if(rect.top >= old_top)
 288                 {
 289                     rect.top = old_top;
 290                     FillRect(hdc, &rect, hbrBk);
 291                 }
 292             }
 293             else
 294             {
 295                 while(rect.bottom > rightBar) {
 296                     rect.top = rect.bottom - ledWidth;
 297                     if (rect.top < rightMost)
 298                         rect.top = rightMost;
 299                     FillRect(hdc, &rect, hbrBar);
 300                     rect.bottom = rect.top;
 301                     rect.top -= LED_GAP;
 302                     if (rect.top <= rightBar) break;
 303                     FillRect(hdc, &rect, hbrBk);
 304                     rect.bottom = rect.top;
 305                 }
 306             }
 307             rect.top = rightMost;
 308             FillRect(hdc, &rect, hbrBk);
 309         } else {
 310             if (dwStyle & PBS_MARQUEE)
 311             {
 312                 INT i, old_right, old_left, ledMStart, leds;
 313                 old_left = rect.left;
 314                 old_right = rect.right;
 315
 316                 leds = ((rect.right - rect.left) + ledWidth - 1) / (ledWidth + LED_GAP);
 317                 ledMStart = (infoPtr->MarqueePos + MARQUEE_LEDS) - leds;
 318                 rect.right = rect.left;
 319
 320                 while(ledMStart > 0)
 321                 {
 322                     rect.right = min(rect.left + ledWidth, old_right);
 323                     FillRect(hdc, &rect, hbrBar);
 324                     rect.left = rect.right;
 325                     rect.right += LED_GAP;
 326                     if (rect.right > old_right) break;
 327                     FillRect(hdc, &rect, hbrBk);
 328                     rect.left = rect.right;
 329                     ledMStart--;
 330                 }
 331                 if(infoPtr->MarqueePos > 0)
 332                 {
 333                     rect.right = min(old_left + (infoPtr->MarqueePos * (ledWidth + LED_GAP)), old_right);
 334                     FillRect(hdc, &rect, hbrBk);
 335                     rect.left = rect.right;
 336                 }
 337                 for(i = 0; i < MARQUEE_LEDS && rect.right < old_right; i++)
 338                 {
 339                     rect.right = min(rect.left + ledWidth, old_right);
 340                     FillRect(hdc, &rect, hbrBar);
 341                     rect.left = rect.right;
 342                     rect.right += LED_GAP;
 343                     if (rect.right > old_right) break;
 344                     FillRect(hdc, &rect, hbrBk);
 345                     rect.left = rect.right;
 346                 }
 347                 if(rect.right < old_right)
 348                 {
 349                     rect.right = old_right;
 350                     FillRect(hdc, &rect, hbrBk);
 351                 }
 352             }
 353             else
 354             {
 355                 while(rect.left < rightBar) {
 356                     rect.right = rect.left + ledWidth;
 357                     if (rect.right > rightMost)
 358                         rect.right = rightMost;
 359                     FillRect(hdc, &rect, hbrBar);
 360                     rect.left = rect.right;
 361                     rect.right += LED_GAP;
 362                     if (rect.right >= rightBar) break;
 363                     FillRect(hdc, &rect, hbrBk);
 364                     rect.left = rect.right;
 365                 }
 366                 rect.right = rightMost;
 367                 FillRect(hdc, &rect, hbrBk);
 368             }
 369         }
 370     }
 371
 372     /* delete bar brush */
 373     if (infoPtr->ColorBar != CLR_DEFAULT) DeleteObject (hbrBar);
 374     if (infoPtr->ColorBk != CLR_DEFAULT) DeleteObject (hbrBk);
 375
 376     return 0;
 377 }
 378
 379
 380 /***********************************************************************
 381  * PROGRESS_Paint
 382  * Draw the progress bar. The background need not be erased.
 383  * If dc!=0, it draws on it
 384  */
 385 static LRESULT PROGRESS_Paint (PROGRESS_INFO *infoPtr, HDC hdc)
 386 {
 387     PAINTSTRUCT ps;
 388     if (hdc) return PROGRESS_Draw (infoPtr, hdc);
 389     hdc = BeginPaint (infoPtr->Self, &ps);
 390     PROGRESS_Draw (infoPtr, hdc);
 391     EndPaint (infoPtr->Self, &ps);
 392     return 0;
 393 }
 394
 395
 396 /***********************************************************************
 397  * PROGRESS_Timer
 398  * Handle the marquee timer messages
 399  */
 400 static LRESULT PROGRESS_Timer (PROGRESS_INFO *infoPtr, INT idTimer)
 401 {
 402     if(idTimer == ID_MARQUEE_TIMER)
 403     {
 404         LONG style = GetWindowLongW (infoPtr->Self, GWL_STYLE);
 405         RECT rect;
 406         int ledWidth, leds;
 407
 408         GetClientRect (infoPtr->Self, &rect);
 409         InflateRect(&rect, -1, -1);
 410
 411         if(!(style & PBS_SMOOTH))
 412         {
 413             int width, height;
 414
 415             if(style & PBS_VERTICAL)
 416             {
 417                 width = rect.bottom - rect.top;
 418                 height = rect.right - rect.left;
 419             }
 420             else
 421             {
 422                 height = rect.bottom - rect.top;
 423                 width = rect.right - rect.left;
 424             }
 425             ledWidth = MulDiv (height, 2, 3);
 426             leds = (width + ledWidth - 1) / (ledWidth + LED_GAP);
 427         }
 428         else
 429         {
 430             ledWidth = 1;
 431             if(style & PBS_VERTICAL)
 432             {
 433                 leds = rect.bottom - rect.top;
 434             }
 435             else
 436             {
 437                 leds = rect.right - rect.left;
 438             }
 439         }
 440
 441         /* increment the marquee progress */
 442         if(++infoPtr->MarqueePos >= leds)
 443         {
 444             infoPtr->MarqueePos = 0;
 445         }
 446
 447         InvalidateRect(infoPtr->Self, &rect, TRUE);
 448     }
 449     return 0;
 450 }
 451
 452
 453 /***********************************************************************
 454  *           PROGRESS_CoercePos
 455  * Makes sure the current position (CurVal) is within bounds.
 456  */
 457 static void PROGRESS_CoercePos(PROGRESS_INFO *infoPtr)
 458 {
 459     if(infoPtr->CurVal < infoPtr->MinVal)
 460         infoPtr->CurVal = infoPtr->MinVal;
 461     if(infoPtr->CurVal > infoPtr->MaxVal)
 462         infoPtr->CurVal = infoPtr->MaxVal;
 463 }
 464
 465
 466 /***********************************************************************
 467  *           PROGRESS_SetFont
 468  * Set new Font for progress bar
 469  */
 470 static HFONT PROGRESS_SetFont (PROGRESS_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
 471 {
 472     HFONT hOldFont = infoPtr->Font;
 473     infoPtr->Font = hFont;
 474     /* Since infoPtr->Font is not used, there is no need for repaint */
 475     return hOldFont;
 476 }
 477
 478 static DWORD PROGRESS_SetRange (PROGRESS_INFO *infoPtr, int low, int high)
 479 {
 480     DWORD res = MAKELONG(LOWORD(infoPtr->MinVal), LOWORD(infoPtr->MaxVal));
 481
 482     /* if nothing changes, simply return */
 483     if(infoPtr->MinVal == low && infoPtr->MaxVal == high) return res;
 484
 485     infoPtr->MinVal = low;
 486     infoPtr->MaxVal = high;
 487     PROGRESS_CoercePos(infoPtr);
 488     InvalidateRect(infoPtr->Self, NULL, TRUE);
 489     return res;
 490 }
 491
 492 /***********************************************************************
 493  *           ProgressWindowProc
 494  */
 495 static LRESULT WINAPI ProgressWindowProc(HWND hwnd, UINT message,
 496                                          WPARAM wParam, LPARAM lParam)
 497 {
 498     PROGRESS_INFO *infoPtr;
 499
 500     TRACE("hwnd=%p msg=%04x wparam=%x lParam=%lx\n", hwnd, message, wParam, lParam);
 501
 502     infoPtr = (PROGRESS_INFO *)GetWindowLongPtrW(hwnd, 0);
 503
 504     if (!infoPtr && message != WM_CREATE)
 505         return DefWindowProcW( hwnd, message, wParam, lParam );
 506
 507     switch(message) {
 508     case WM_CREATE:
 509     {
 510         DWORD dwExStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
 511         dwExStyle &= ~(WS_EX_CLIENTEDGE | WS_EX_WINDOWEDGE);
 512         dwExStyle |= WS_EX_STATICEDGE;
 513         SetWindowLongW (hwnd, GWL_EXSTYLE, dwExStyle);
 514         /* Force recalculation of a non-client area */
 515         SetWindowPos(hwnd, 0, 0, 0, 0, 0,
 516             SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
 517
 518         /* allocate memory for info struct */
 519         infoPtr = (PROGRESS_INFO *)Alloc (sizeof(PROGRESS_INFO));
 520         if (!infoPtr) return -1;
 521         SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
 522
 523         /* initialize the info struct */
 524         infoPtr->Self = hwnd;
 525         infoPtr->MinVal = 0;
 526         infoPtr->MaxVal = 100;
 527         infoPtr->CurVal = 0;
 528         infoPtr->Step = 10;
 529         infoPtr->MarqueePos = 0;
 530         infoPtr->Marquee = FALSE;
 531         infoPtr->ColorBar = CLR_DEFAULT;
 532         infoPtr->ColorBk = CLR_DEFAULT;
 533         infoPtr->Font = 0;
 534         TRACE("Progress Ctrl creation, hwnd=%p\n", hwnd);
 535         return 0;
 536     }
 537
 538     case WM_DESTROY:
 539         TRACE("Progress Ctrl destruction, hwnd=%p\n", hwnd);
 540         Free (infoPtr);
 541         SetWindowLongPtrW(hwnd, 0, 0);
 542         return 0;
 543
 544     case WM_GETFONT:
 545         return (LRESULT)infoPtr->Font;
 546
 547     case WM_SETFONT:
 548         return (LRESULT)PROGRESS_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
 549
 550     case WM_PAINT:
 551         return PROGRESS_Paint (infoPtr, (HDC)wParam);
 552
 553     case WM_TIMER:
 554         return PROGRESS_Timer (infoPtr, (INT)wParam);
 555
 556     case PBM_DELTAPOS:
 557     {
 558         INT oldVal;
 559         oldVal = infoPtr->CurVal;
 560         if(wParam != 0) {
 561             infoPtr->CurVal += (INT)wParam;
 562             PROGRESS_CoercePos (infoPtr);
 563             TRACE("PBM_DELTAPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
 564             PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
 565         }
 566         return oldVal;
 567     }
 568
 569     case PBM_SETPOS:
 570     {
 571         UINT oldVal;
 572         oldVal = infoPtr->CurVal;
 573         if(oldVal != wParam) {
 574             infoPtr->CurVal = (INT)wParam;
 575             PROGRESS_CoercePos(infoPtr);
 576             TRACE("PBM_SETPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
 577             PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
 578         }
 579         return oldVal;
 580     }
 581
 582     case PBM_SETRANGE:
 583         return PROGRESS_SetRange (infoPtr, (int)LOWORD(lParam), (int)HIWORD(lParam));
 584
 585     case PBM_SETSTEP:
 586     {
 587         INT oldStep;
 588         oldStep = infoPtr->Step;
 589         infoPtr->Step = (INT)wParam;
 590         return oldStep;
 591     }
 592
 593     case PBM_STEPIT:
 594     {
 595         INT oldVal;
 596         oldVal = infoPtr->CurVal;
 597         infoPtr->CurVal += infoPtr->Step;
 598         if(infoPtr->CurVal > infoPtr->MaxVal)
 599             infoPtr->CurVal = infoPtr->MinVal;
 600         if(oldVal != infoPtr->CurVal)
 601         {
 602             TRACE("PBM_STEPIT: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
 603             PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
 604         }
 605         return oldVal;
 606     }
 607
 608     case PBM_SETRANGE32:
 609         return PROGRESS_SetRange (infoPtr, (int)wParam, (int)lParam);
 610
 611     case PBM_GETRANGE:
 612         if (lParam) {
 613             ((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
 614             ((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
 615         }
 616         return wParam ? infoPtr->MinVal : infoPtr->MaxVal;
 617
 618     case PBM_GETPOS:
 619         return infoPtr->CurVal;
 620
 621     case PBM_SETBARCOLOR:
 622         infoPtr->ColorBar = (COLORREF)lParam;
 623         InvalidateRect(hwnd, NULL, TRUE);
 624         return 0;
 625
 626     case PBM_SETBKCOLOR:
 627         infoPtr->ColorBk = (COLORREF)lParam;
 628         InvalidateRect(hwnd, NULL, TRUE);
 629         return 0;
 630
 631     case PBM_SETMARQUEE:
 632         if(wParam != 0)
 633         {
 634             infoPtr->Marquee = TRUE;
 635             SetTimer(infoPtr->Self, ID_MARQUEE_TIMER, (UINT)lParam, NULL);
 636         }
 637         else
 638         {
 639             infoPtr->Marquee = FALSE;
 640             KillTimer(infoPtr->Self, ID_MARQUEE_TIMER);
 641         }
 642         return infoPtr->Marquee;
 643
 644     default:
 645         if ((message >= WM_USER) && (message < WM_APP))
 646             ERR("unknown msg %04x wp=%04x lp=%08lx\n", message, wParam, lParam );
 647         return DefWindowProcW( hwnd, message, wParam, lParam );
 648     }
 649 }
 650
 651
 652 /***********************************************************************
 653  * PROGRESS_Register [Internal]
 654  *
 655  * Registers the progress bar window class.
 656  */
 657 void PROGRESS_Register (void)
 658 {
 659     WNDCLASSW wndClass;
 660
 661     ZeroMemory (&wndClass, sizeof(wndClass));
 662     wndClass.style         = CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
 663     wndClass.lpfnWndProc   = (WNDPROC)ProgressWindowProc;
 664     wndClass.cbClsExtra    = 0;
 665     wndClass.cbWndExtra    = sizeof (PROGRESS_INFO *);
 666     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_ARROW);
 667     wndClass.lpszClassName = PROGRESS_CLASSW;
 668
 669     RegisterClassW (&wndClass);
 670 }
 671
 672
 673 /***********************************************************************
 674  * PROGRESS_Unregister [Internal]
 675  *
 676  * Unregisters the progress bar window class.
 677  */
 678 void PROGRESS_Unregister (void)
 679 {
 680     UnregisterClassW (PROGRESS_CLASSW, NULL);
 681 }