Progress Comctrl cleanup
Dimitrie O. Paun
dimi at cs.toronto.edu
Fri Jan 25 13:42:09 CST 2002
[Also sent in private email to Alexandre]
ChangeLog:
Code cleanup:
-- add new SetRange functions (instead of duplicating the code)
-- pass the infoPtr around instead of the hwnd
-- use W-functions instead of A-functions
-- more checks in case of failures
-- make indentation and style consistent throughout the file
--
Dimi.
-------------- next part --------------
Index: dlls/comctl32/progress.c
===================================================================
RCS file: /var/cvs/wine/dlls/comctl32/progress.c,v
retrieving revision 1.16
diff -u -r1.16 progress.c
--- dlls/comctl32/progress.c 26 Jan 2001 20:43:41 -0000 1.16
+++ dlls/comctl32/progress.c 25 Jan 2002 04:42:12 -0000
@@ -1,7 +1,7 @@
/*
* Progress control
*
- * Copyright 1997 Dimitrie O. Paun
+ * Copyright 1997, 2002 Dimitrie O. Paun
* Copyright 1998, 1999 Eric Kohl
*
*/
@@ -15,140 +15,125 @@
typedef struct
{
- INT CurVal; /* Current progress value */
- INT MinVal; /* Minimum progress value */
- INT MaxVal; /* Maximum progress value */
- INT Step; /* Step to use on PMB_STEPIT */
- COLORREF ColorBar; /* Bar color */
- COLORREF ColorBk; /* Background color */
- HFONT hFont; /* Handle to font (not unused) */
+ HWND Self; /* The window handle for this control */
+ INT CurVal; /* Current progress value */
+ INT MinVal; /* Minimum progress value */
+ INT MaxVal; /* Maximum progress value */
+ INT Step; /* Step to use on PMB_STEPIT */
+ COLORREF ColorBar; /* Bar color */
+ COLORREF ColorBk; /* Background color */
+ HFONT Font; /* Handle to font (not unused) */
} PROGRESS_INFO;
/* Control configuration constants */
#define LED_GAP 2
-/* Work constants */
-
-#define UNKNOWN_PARAM(msg, wParam, lParam) WARN(\
- "Unknown parameter(s) for message " #msg \
- "(%04x): wp=%04x lp=%08lx\n", msg, wParam, lParam);
-
-#define PROGRESS_GetInfoPtr(hwnd) ((PROGRESS_INFO *)GetWindowLongA(hwnd, 0))
-
+#define UNKNOWN_PARAM(msg, wParam, lParam) WARN( \
+ "Unknown parameter(s) for message " #msg \
+ "(%04x): wp=%04x lp=%08lx\n", msg, wParam, lParam);
/***********************************************************************
* PROGRESS_Draw
* Draws the progress bar.
*/
-static void
-PROGRESS_Draw (HWND hwnd, HDC hdc)
+static LRESULT PROGRESS_Draw (PROGRESS_INFO *infoPtr, HDC hdc)
{
- PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
- HBRUSH hbrBar, hbrBk;
- int rightBar, rightMost, ledWidth;
- RECT rect;
- DWORD dwStyle;
-
- TRACE("refresh pos=%d min=%d, max=%d\n",
- infoPtr->CurVal, infoPtr->MinVal, infoPtr->MaxVal);
-
- /* get the required bar brush */
- if (infoPtr->ColorBar == CLR_DEFAULT)
- hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
- else
- hbrBar = CreateSolidBrush (infoPtr->ColorBar);
-
- /* get the required background brush */
- if (infoPtr->ColorBk == CLR_DEFAULT)
- hbrBk = GetSysColorBrush (COLOR_3DFACE);
- else
- hbrBk = CreateSolidBrush (infoPtr->ColorBk);
-
- /* get client rectangle */
- GetClientRect (hwnd, &rect);
-
- /* draw the background */
- FillRect(hdc, &rect, hbrBk);
-
- rect.left++; rect.right--; rect.top++; rect.bottom--;
-
- /* get the window style */
- dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
-
- /* compute extent of progress bar */
- if (dwStyle & PBS_VERTICAL)
- {
- rightBar = rect.bottom -
- MulDiv(infoPtr->CurVal-infoPtr->MinVal,
- rect.bottom - rect.top,
- infoPtr->MaxVal-infoPtr->MinVal);
- ledWidth = MulDiv ((rect.right - rect.left), 2, 3);
- rightMost = rect.top;
- }
- else
- {
- rightBar = rect.left +
- MulDiv(infoPtr->CurVal-infoPtr->MinVal,
- rect.right - rect.left,
- infoPtr->MaxVal-infoPtr->MinVal);
- ledWidth = MulDiv ((rect.bottom - rect.top), 2, 3);
- rightMost = rect.right;
- }
-
- /* now draw the bar */
- if (dwStyle & PBS_SMOOTH)
- {
- if (dwStyle & PBS_VERTICAL)
- rect.top = rightBar;
+ HBRUSH hbrBar, hbrBk;
+ int rightBar, rightMost, ledWidth;
+ RECT rect;
+ DWORD dwStyle;
+
+ TRACE("(infoPtr=%p, hdc=%x)\n", infoPtr, hdc);
+
+ /* get the required bar brush */
+ if (infoPtr->ColorBar == CLR_DEFAULT)
+ hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
else
- rect.right = rightBar;
- FillRect(hdc, &rect, hbrBar);
- }
- else
- {
- if (dwStyle & PBS_VERTICAL)
- {
- while(rect.bottom > rightBar) {
- rect.top = rect.bottom-ledWidth;
- if (rect.top < rightMost)
- rect.top = rightMost;
- FillRect(hdc, &rect, hbrBar);
- rect.bottom = rect.top-LED_GAP;
- }
+ hbrBar = CreateSolidBrush (infoPtr->ColorBar);
+
+ /* get the required background brush */
+ if (infoPtr->ColorBk == CLR_DEFAULT)
+ hbrBk = GetSysColorBrush (COLOR_3DFACE);
+ else
+ hbrBk = CreateSolidBrush (infoPtr->ColorBk);
+
+ /* get client rectangle */
+ GetClientRect (infoPtr->Self, &rect);
+
+ /* draw the background */
+ FillRect(hdc, &rect, hbrBk);
+
+ rect.left++; rect.right--; rect.top++; rect.bottom--;
+
+ /* get the window style */
+ dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
+
+ /* compute extent of progress bar */
+ if (dwStyle & PBS_VERTICAL) {
+ rightBar = rect.bottom -
+ MulDiv (infoPtr->CurVal - infoPtr->MinVal,
+ rect.bottom - rect.top,
+ infoPtr->MaxVal - infoPtr->MinVal);
+ ledWidth = MulDiv (rect.right - rect.left, 2, 3);
+ rightMost = rect.top;
+ } else {
+ rightBar = rect.left +
+ MulDiv (infoPtr->CurVal - infoPtr->MinVal,
+ rect.right - rect.left,
+ infoPtr->MaxVal - infoPtr->MinVal);
+ ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
+ rightMost = rect.right;
}
- else {
- while(rect.left < rightBar) {
- rect.right = rect.left+ledWidth;
- if (rect.right > rightMost)
- rect.right = rightMost;
+
+ /* now draw the bar */
+ if (dwStyle & PBS_SMOOTH) {
+ if (dwStyle & PBS_VERTICAL)
+ rect.top = rightBar;
+ else
+ rect.right = rightBar;
FillRect(hdc, &rect, hbrBar);
- rect.left = rect.right+LED_GAP;
- }
- }
- }
-
- /* delete bar brush */
- if (infoPtr->ColorBar != CLR_DEFAULT)
- DeleteObject (hbrBar);
-
- /* delete background brush */
- if (infoPtr->ColorBk != CLR_DEFAULT)
- DeleteObject (hbrBk);
+ } else {
+ if (dwStyle & PBS_VERTICAL) {
+ while(rect.bottom > rightBar) {
+ rect.top = rect.bottom - ledWidth;
+ if (rect.top < rightMost)
+ rect.top = rightMost;
+ FillRect(hdc, &rect, hbrBar);
+ rect.bottom = rect.top - LED_GAP;
+ }
+ } else {
+ while(rect.left < rightBar) {
+ rect.right = rect.left + ledWidth;
+ if (rect.right > rightMost)
+ rect.right = rightMost;
+ FillRect(hdc, &rect, hbrBar);
+ rect.left = rect.right + LED_GAP;
+ }
+ }
+ }
+
+ /* delete bar brush */
+ if (infoPtr->ColorBar != CLR_DEFAULT)
+ DeleteObject (hbrBar);
+
+ /* delete background brush */
+ if (infoPtr->ColorBk != CLR_DEFAULT)
+ DeleteObject (hbrBk);
+
+ return 0;
}
/***********************************************************************
* PROGRESS_Refresh
* Draw the progress bar. The background need not be erased.
*/
-static void
-PROGRESS_Refresh (HWND hwnd)
+static LRESULT PROGRESS_Refresh (PROGRESS_INFO *infoPtr)
{
- HDC hdc;
-
- hdc = GetDC (hwnd);
- PROGRESS_Draw (hwnd, hdc);
- ReleaseDC (hwnd, hdc);
+ HDC hdc = GetDC (infoPtr->Self);
+ LRESULT res = PROGRESS_Draw (infoPtr, hdc);
+ ReleaseDC (infoPtr->Self, hdc);
+ return res;
}
/***********************************************************************
@@ -156,30 +141,27 @@
* Draw the progress bar. The background need not be erased.
* If dc!=0, it draws on it
*/
-static void
-PROGRESS_Paint (HWND hwnd)
+static LRESULT PROGRESS_Paint (PROGRESS_INFO *infoPtr, HDC hdc)
{
PAINTSTRUCT ps;
- HDC hdc;
-
- hdc = BeginPaint (hwnd, &ps);
- PROGRESS_Draw (hwnd, hdc);
- EndPaint (hwnd, &ps);
+ if (hdc) return PROGRESS_Draw (infoPtr, hdc);
+ hdc = BeginPaint (infoPtr->Self, &ps);
+ PROGRESS_Draw (infoPtr, hdc);
+ EndPaint (infoPtr->Self, &ps);
+ return 0;
}
/***********************************************************************
* PROGRESS_CoercePos
- * Makes sure the current position (CUrVal) is within bounds.
+ * Makes sure the current position (CurVal) is within bounds.
*/
-static void PROGRESS_CoercePos(HWND hwnd)
+static void PROGRESS_CoercePos(PROGRESS_INFO *infoPtr)
{
- PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
-
- if(infoPtr->CurVal < infoPtr->MinVal)
- infoPtr->CurVal = infoPtr->MinVal;
- if(infoPtr->CurVal > infoPtr->MaxVal)
- infoPtr->CurVal = infoPtr->MaxVal;
+ if(infoPtr->CurVal < infoPtr->MinVal)
+ infoPtr->CurVal = infoPtr->MinVal;
+ if(infoPtr->CurVal > infoPtr->MaxVal)
+ infoPtr->CurVal = infoPtr->MaxVal;
}
@@ -187,18 +169,29 @@
* PROGRESS_SetFont
* Set new Font for progress bar
*/
-static HFONT
-PROGRESS_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
+static HFONT PROGRESS_SetFont (PROGRESS_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
{
- PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
- HFONT hOldFont = infoPtr->hFont;
-
- infoPtr->hFont = (HFONT)wParam;
- if (LOWORD(lParam))
- PROGRESS_Refresh (hwnd);
- return hOldFont;
+ HFONT hOldFont = infoPtr->Font;
+ infoPtr->Font = hFont;
+ if (bRedraw) PROGRESS_Refresh (infoPtr);
+ return hOldFont;
}
+static DWORD PROGRESS_SetRange (PROGRESS_INFO *infoPtr, int low, int high)
+{
+ DWORD res = MAKELONG(LOWORD(infoPtr->MinVal), LOWORD(infoPtr->MaxVal));
+
+ /* if nothing changes, simply return */
+ if(infoPtr->MinVal == low && infoPtr->MaxVal == high) return res;
+
+ /* if things are different, adjust values and repaint the control */
+ if (high <= low) high = low + 1;
+ infoPtr->MinVal = low;
+ infoPtr->MaxVal = high;
+ PROGRESS_CoercePos(infoPtr);
+ PROGRESS_Refresh (infoPtr);
+ return res;
+}
/***********************************************************************
* ProgressWindowProc
@@ -206,159 +199,126 @@
static LRESULT WINAPI ProgressWindowProc(HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
- PROGRESS_INFO *infoPtr = PROGRESS_GetInfoPtr(hwnd);
- UINT temp;
- if (!infoPtr && (message != WM_CREATE))
- return DefWindowProcA( hwnd, message, wParam, lParam );
- switch(message)
- {
+ PROGRESS_INFO *infoPtr = (PROGRESS_INFO *)GetWindowLongW(hwnd, 0);
+ DWORD dwExStyle;
+ UINT temp;
+
+ if (!infoPtr && message != WM_CREATE && message != WM_NCCREATE)
+ return DefWindowProcW( hwnd, message, wParam, lParam );
+
+ switch(message) {
case WM_NCCREATE:
- {
- DWORD dwExStyle;
- dwExStyle = GetWindowLongA (hwnd, GWL_EXSTYLE);
- SetWindowLongA (hwnd, GWL_EXSTYLE, dwExStyle | WS_EX_STATICEDGE);
- }
- return TRUE;
+ dwExStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
+ SetWindowLongW (hwnd, GWL_EXSTYLE, dwExStyle | WS_EX_STATICEDGE);
+ return TRUE;
case WM_CREATE:
- /* allocate memory for info struct */
- infoPtr =
- (PROGRESS_INFO *)COMCTL32_Alloc (sizeof(PROGRESS_INFO));
- SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
-
- /* initialize the info struct */
- infoPtr->MinVal=0;
- infoPtr->MaxVal=100;
- infoPtr->CurVal=0;
- infoPtr->Step=10;
- infoPtr->ColorBar=CLR_DEFAULT;
- infoPtr->ColorBk=CLR_DEFAULT;
- infoPtr->hFont=(HANDLE)NULL;
- TRACE("Progress Ctrl creation, hwnd=%04x\n", hwnd);
- break;
+ /* allocate memory for info struct */
+ infoPtr = (PROGRESS_INFO *)COMCTL32_Alloc (sizeof(PROGRESS_INFO));
+ if (!infoPtr) return -1;
+ SetWindowLongW (hwnd, 0, (DWORD)infoPtr);
+
+ /* initialize the info struct */
+ infoPtr->Self = hwnd;
+ infoPtr->MinVal = 0;
+ infoPtr->MaxVal = 100;
+ infoPtr->CurVal = 0;
+ infoPtr->Step = 10;
+ infoPtr->ColorBar = CLR_DEFAULT;
+ infoPtr->ColorBk = CLR_DEFAULT;
+ infoPtr->Font = 0;
+ TRACE("Progress Ctrl creation, hwnd=%04x\n", hwnd);
+ return 0;
case WM_DESTROY:
- TRACE("Progress Ctrl destruction, hwnd=%04x\n", hwnd);
- COMCTL32_Free (infoPtr);
- SetWindowLongA(hwnd, 0, 0);
- break;
+ TRACE("Progress Ctrl destruction, hwnd=%04x\n", hwnd);
+ COMCTL32_Free (infoPtr);
+ SetWindowLongW(hwnd, 0, 0);
+ return 0;
case WM_ERASEBKGND:
- /* pretend to erase it here, but we will do it in the paint
- function to avoid flicker */
- return 1;
+ /* pretend to erase it here, but we will do it in the paint
+ function to avoid flicker */
+ return TRUE;
case WM_GETFONT:
- return (LRESULT)infoPtr->hFont;
+ return (LRESULT)infoPtr->Font;
case WM_SETFONT:
- return PROGRESS_SetFont (hwnd, wParam, lParam);
+ return PROGRESS_SetFont (infoPtr, (HFONT)wParam, (BOOL)lParam);
case WM_PAINT:
- PROGRESS_Paint (hwnd);
- break;
+ return PROGRESS_Paint (infoPtr, (HDC)wParam);
case PBM_DELTAPOS:
- if(lParam)
- UNKNOWN_PARAM(PBM_DELTAPOS, wParam, lParam);
- temp = infoPtr->CurVal;
- if(wParam != 0){
- infoPtr->CurVal += (WORD)wParam;
- PROGRESS_CoercePos (hwnd);
- PROGRESS_Refresh (hwnd);
- }
- return temp;
+ if(lParam) UNKNOWN_PARAM(PBM_DELTAPOS, wParam, lParam);
+ temp = infoPtr->CurVal;
+ if(wParam != 0) {
+ infoPtr->CurVal += (WORD)wParam;
+ PROGRESS_CoercePos (infoPtr);
+ PROGRESS_Refresh (infoPtr);
+ }
+ return temp;
case PBM_SETPOS:
- if (lParam)
- UNKNOWN_PARAM(PBM_SETPOS, wParam, lParam);
- temp = infoPtr->CurVal;
- if(temp != wParam){
- infoPtr->CurVal = (WORD)wParam;
- PROGRESS_CoercePos(hwnd);
- PROGRESS_Refresh (hwnd);
- }
- return temp;
+ if (lParam) UNKNOWN_PARAM(PBM_SETPOS, wParam, lParam);
+ temp = infoPtr->CurVal;
+ if(temp != wParam) {
+ infoPtr->CurVal = (WORD)wParam;
+ PROGRESS_CoercePos(infoPtr);
+ PROGRESS_Refresh (infoPtr);
+ }
+ return temp;
case PBM_SETRANGE:
- if (wParam)
- UNKNOWN_PARAM(PBM_SETRANGE, wParam, lParam);
- temp = MAKELONG(infoPtr->MinVal, infoPtr->MaxVal);
- if(temp != lParam){
- infoPtr->MinVal = LOWORD(lParam);
- infoPtr->MaxVal = HIWORD(lParam);
- if(infoPtr->MaxVal <= infoPtr->MinVal)
- infoPtr->MaxVal = infoPtr->MinVal+1;
- PROGRESS_CoercePos(hwnd);
- PROGRESS_Refresh (hwnd);
- }
- return temp;
+ if (wParam) UNKNOWN_PARAM(PBM_SETRANGE, wParam, lParam);
+ return PROGRESS_SetRange (infoPtr, (int)LOWORD(lParam), (int)HIWORD(lParam));
case PBM_SETSTEP:
- if (lParam)
- UNKNOWN_PARAM(PBM_SETSTEP, wParam, lParam);
- temp = infoPtr->Step;
- infoPtr->Step = (WORD)wParam;
- return temp;
+ if (lParam) UNKNOWN_PARAM(PBM_SETSTEP, wParam, lParam);
+ temp = infoPtr->Step;
+ infoPtr->Step = (WORD)wParam;
+ return temp;
case PBM_STEPIT:
- if (wParam || lParam)
- UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
- temp = infoPtr->CurVal;
- infoPtr->CurVal += infoPtr->Step;
- if(infoPtr->CurVal > infoPtr->MaxVal)
- infoPtr->CurVal = infoPtr->MinVal;
- if(temp != infoPtr->CurVal)
- PROGRESS_Refresh (hwnd);
- return temp;
+ if (wParam || lParam) UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
+ temp = infoPtr->CurVal;
+ infoPtr->CurVal += infoPtr->Step;
+ if(infoPtr->CurVal > infoPtr->MaxVal)
+ infoPtr->CurVal = infoPtr->MinVal;
+ if(temp != infoPtr->CurVal)
+ PROGRESS_Refresh (infoPtr);
+ return temp;
case PBM_SETRANGE32:
- temp = MAKELONG(infoPtr->MinVal, infoPtr->MaxVal);
- if((infoPtr->MinVal != (INT)wParam) ||
- (infoPtr->MaxVal != (INT)lParam)) {
- infoPtr->MinVal = (INT)wParam;
- infoPtr->MaxVal = (INT)lParam;
- if(infoPtr->MaxVal <= infoPtr->MinVal)
- infoPtr->MaxVal = infoPtr->MinVal+1;
- PROGRESS_CoercePos(hwnd);
- PROGRESS_Refresh (hwnd);
- }
- return temp;
+ return PROGRESS_SetRange (infoPtr, (int)wParam, (int)lParam);
case PBM_GETRANGE:
- if (lParam){
- ((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
- ((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
- }
- return (wParam) ? infoPtr->MinVal : infoPtr->MaxVal;
+ if (lParam) {
+ ((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
+ ((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
+ }
+ return wParam ? infoPtr->MinVal : infoPtr->MaxVal;
case PBM_GETPOS:
- if (wParam || lParam)
- UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
- return (infoPtr->CurVal);
+ if (wParam || lParam) UNKNOWN_PARAM(PBM_STEPIT, wParam, lParam);
+ return infoPtr->CurVal;
case PBM_SETBARCOLOR:
- if (wParam)
- UNKNOWN_PARAM(PBM_SETBARCOLOR, wParam, lParam);
- infoPtr->ColorBar = (COLORREF)lParam;
- PROGRESS_Refresh (hwnd);
- break;
+ if (wParam) UNKNOWN_PARAM(PBM_SETBARCOLOR, wParam, lParam);
+ infoPtr->ColorBar = (COLORREF)lParam;
+ return PROGRESS_Refresh (infoPtr);
case PBM_SETBKCOLOR:
- if (wParam)
- UNKNOWN_PARAM(PBM_SETBKCOLOR, wParam, lParam);
- infoPtr->ColorBk = (COLORREF)lParam;
- PROGRESS_Refresh (hwnd);
- break;
+ if (wParam) UNKNOWN_PARAM(PBM_SETBKCOLOR, wParam, lParam);
+ infoPtr->ColorBk = (COLORREF)lParam;
+ return PROGRESS_Refresh (infoPtr);
default:
- if (message >= WM_USER)
- ERR("unknown msg %04x wp=%04x lp=%08lx\n",
- message, wParam, lParam );
- return DefWindowProcA( hwnd, message, wParam, lParam );
+ if (message >= WM_USER)
+ ERR("unknown msg %04x wp=%04x lp=%08lx\n", message, wParam, lParam );
+ return DefWindowProcW( hwnd, message, wParam, lParam );
}
-
- return 0;
}
@@ -367,21 +327,19 @@
*
* Registers the progress bar window class.
*/
-
-VOID
-PROGRESS_Register (void)
+VOID PROGRESS_Register (void)
{
- WNDCLASSA wndClass;
+ WNDCLASSW wndClass;
- ZeroMemory (&wndClass, sizeof( WNDCLASSA));
+ ZeroMemory (&wndClass, sizeof(wndClass));
wndClass.style = CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
wndClass.lpfnWndProc = (WNDPROC)ProgressWindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof (PROGRESS_INFO *);
- wndClass.hCursor = LoadCursorA (0, IDC_ARROWA);
- wndClass.lpszClassName = PROGRESS_CLASSA;
+ wndClass.hCursor = LoadCursorW (0, IDC_ARROWW);
+ wndClass.lpszClassName = PROGRESS_CLASSW;
- RegisterClassA (&wndClass);
+ RegisterClassW (&wndClass);
}
@@ -390,10 +348,8 @@
*
* Unregisters the progress bar window class.
*/
-
-VOID
-PROGRESS_Unregister (void)
+VOID PROGRESS_Unregister (void)
{
- UnregisterClassA (PROGRESS_CLASSA, (HINSTANCE)NULL);
+ UnregisterClassW (PROGRESS_CLASSW, (HINSTANCE)NULL);
}
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