First try at the month calendar common control. Main features
basically OK.

diff --git a/dlls/comctl32/monthcal.c b/dlls/comctl32/monthcal.c
index 83a226f..38e70a2 100644
--- a/dlls/comctl32/monthcal.c
+++ b/dlls/comctl32/monthcal.c
@@ -1,47 +1,1320 @@
 /*
  * Month calendar control
  *
- * Copyright 1998, 1999 Eric Kohl
- *
- * NOTES
- *   This is just a dummy control. An author is needed! Any volunteers?
- *   I will only improve this control once in a while.
- *     Eric <ekohl@abo.rhein-zeitung.de>
+ * Copyright 1998, 1999 Eric Kohl (ekohl@abo.rhein-zeitung.de)
+ * Copyright 1999  Alex Priem (alexp@sci.kun.nl)
  *
  * TODO:
- *   - All messages.
- *   - All notifications.
+ *   - Notifications.
  *
+ *
+ *  FIXME: refresh should ask for rect of required length. (?)
+ *  FIXME: when pressing next/prev button, button should disappear
+ *         until mouse is released. Should also set timer.
+ *  FIXME: we refresh to often; especially in LButtonDown/MouseMove.
+ *  FIXME: handle resources better (doesn't work now); also take care
+           of internationalization. 
  */
 
 #include "winbase.h"
+#include "winuser.h"
+#include "wingdi.h"
+#include "win.h"
+#include "winnls.h"
 #include "commctrl.h"
+#include "comctl32.h"
 #include "monthcal.h"
 #include "debugtools.h"
 
 DEFAULT_DEBUG_CHANNEL(monthcal)
 
+/* take #days/month from ole/parsedt.c;
+ * we want full month-names, and abbreviated weekdays, so these are
+ * defined here */
+
+extern int mdays[];    
+char *monthtxt[] = {"January", "February", "March", "April", "May", 
+                      "June", "July", "August", "September", "October", 
+                      "November", "December"};
+
+char *daytxt[] = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" };
+int DayOfWeekTable[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4};
+
+
 
 #define MONTHCAL_GetInfoPtr(hwnd) ((MONTHCAL_INFO *)GetWindowLongA (hwnd, 0))
 
+/* helper functions   
+ * MONTHCAL_ValidateTime: is time a valid date/time combo?
+ */
+
+
+/* CHECKME: all these validations OK? */
+   
+static int MONTHCAL_ValidateTime (SYSTEMTIME time) 
+
+{
+ if (time.wMonth > 12) return FALSE;
+ if (time.wDayOfWeek > 6) return FALSE;
+ if (time.wDay > mdays[time.wMonth]) return FALSE;
+ if (time.wMonth > 23) return FALSE;
+ if (time.wMinute > 60) return FALSE;
+ if (time.wSecond > 60) return FALSE;
+ if (time.wMilliseconds > 100) return FALSE;
+ return TRUE;
+}
+
+static void MONTHCAL_CopyTime (const SYSTEMTIME *from, SYSTEMTIME *to) 
+
+{
+ to->wYear=from->wYear;
+ to->wMonth=from->wMonth;
+ to->wDayOfWeek=from->wDayOfWeek;
+ to->wDay=from->wDay;
+ to->wHour=from->wHour;
+ to->wMinute=from->wMinute;
+ to->wSecond=from->wSecond;
+ to->wMilliseconds=from->wMilliseconds;
+}
+
+
+/* Note:Depending on DST, this may be offset by a day. 
+   Need to find out if we're on a DST place & adjust the clock accordingly.
+   Above function assumes we have a valid data.
+   Valid for year>1752;  d <= 1 <= 31, 1 <= m <= 12.
+   0=Monday.
+*/
+
+
+static int MONTHCAL_CalculateDayOfWeek (DWORD day, DWORD month, DWORD year)
+
+{
+ year -= month < 3;
+ return (year + year/4 - year/100 + year/400 + 
+         DayOfWeekTable[month-1] + day - 1 ) % 7;
+}
+
+
+static int MONTHCAL_CalcDayFromPos (MONTHCAL_INFO *infoPtr, int x, int y) 
+
+{
+    int daypos,weekpos,retval,firstDay;
+
+    daypos=(x - infoPtr->prevmonth.left) / infoPtr->textWidth ;
+    weekpos=(y - infoPtr->days.bottom - infoPtr->rcClient.top) / 
+                     (infoPtr->textHeight*1.25);
+	firstDay=MONTHCAL_CalculateDayOfWeek (1,infoPtr->currentMonth,infoPtr->currentYear);
+    retval=daypos + 7*weekpos - firstDay;
+	TRACE ("%d %d %d\n",daypos,weekpos,retval);
+	return retval;
+}
+
+
+static void MONTHCAL_CalcDayXY (MONTHCAL_INFO *infoPtr, int day, int month, 
+                                 int *x, int *y)
+
+{
+  int firstDay,prevMonth;
+
+  firstDay=MONTHCAL_CalculateDayOfWeek (1,infoPtr->currentMonth,infoPtr->currentYear);
+	
+  if (month==infoPtr->currentMonth) {
+    	*x=(day+firstDay) & 7;
+    	*y=(day+firstDay-*x) / 7;
+		return;
+	}
+  if (month < infoPtr->currentMonth) {
+		prevMonth=month - 1;
+   		if (prevMonth==0) prevMonth=11;
+        *x=(mdays[prevMonth]-firstDay) & 7;
+		*y=0;
+	}
+
+  *y=mdays[month] / 7;
+  *x=(day+firstDay+mdays[month]) & 7;
+}
+
+
+static void MONTHCAL_CalcDayRect (MONTHCAL_INFO *infoPtr, RECT *r, int x, int y) 
+{
+  r->left   = infoPtr->prevmonth.left + x * infoPtr->textWidth;
+  r->right  = r->left + infoPtr->textWidth;
+  r->top    = infoPtr->rcClient.top + y * 1.25 * infoPtr->textHeight 
+                                   + infoPtr->days.bottom;
+  r->bottom = r->top + infoPtr->textHeight;
+
+}
+
+static inline void MONTHCAL_CalcPosFromDay (MONTHCAL_INFO *infoPtr, 
+                                            int day, int month, RECT *r)
+
+{
+  int x,y;
+
+  MONTHCAL_CalcDayXY (infoPtr, day, month, &x, &y);
+  MONTHCAL_CalcDayRect (infoPtr, r, x, y);
+}
 
 
 
 
+static void MONTHCAL_CircleDay (HDC hdc, MONTHCAL_INFO *infoPtr, int i, int j)
+
+{
+	HPEN hRedPen = CreatePen(PS_SOLID, 2, RGB (255,0,0) );
+    HPEN hOldPen2 = SelectObject( hdc, hRedPen );
+ 	POINT points[7];
+	int x,y;
+
+ /* use prevmonth to calculate position because it contains the extra width 
+  * from MCS_WEEKNUMBERS
+  */
+
+	x=infoPtr->prevmonth.left + (i+0.5)*infoPtr->textWidth;
+	y=infoPtr->rcClient.top + 1.25*(j+0.5)*infoPtr->textHeight + infoPtr->days.bottom;
+   	points[0].x = x;
+   	points[0].y = y-0.25*infoPtr->textHeight;
+   	points[1].x = x-1.0*infoPtr->textWidth;
+   	points[1].y = y;
+   	points[2].x = x;
+   	points[2].y = y+0.6*infoPtr->textHeight;
+   	points[3].x = x+0.5*infoPtr->textWidth;
+   	points[3].y = y;
+   	points[4].x = x+0.3*infoPtr->textWidth;
+   	points[4].y = y-0.5*infoPtr->textHeight;
+   	points[5].x = x-0.25*infoPtr->textWidth;
+   	points[5].y = y-0.5*infoPtr->textHeight;
+   	points[6].x = x-0.5*infoPtr->textWidth;
+   	points[6].y = y-0.45*infoPtr->textHeight;
+
+	PolyBezier (hdc,points,4);
+	PolyBezier (hdc,points+3,4);
+    DeleteObject (hRedPen);
+	SelectObject (hdc, hOldPen2);
+}
+
+
+
+
+
+static void MONTHCAL_DrawDay (HDC hdc, MONTHCAL_INFO *infoPtr, 
+							int day, int month, int x, int y, int bold)
+
+{
+  char buf[10];
+  RECT r;
+  static int haveBoldFont,haveSelectedDay=FALSE;
+  HBRUSH hbr; 
+  COLORREF oldCol,oldBk;
+
+  sprintf (buf,"%d",day);
+
+
+
+/* No need to check styles: when selection is not valid, it is set to zero. 
+ * 1<day<31, so evertyhing's OK.
+ */
+
+  MONTHCAL_CalcDayRect (infoPtr, &r, x, y);
+  
+  if ((day>=infoPtr->minSel.wDay) && (day<=infoPtr->maxSel.wDay)
+      && (month==infoPtr->currentMonth)) {
+		HRGN hrgn;
+		RECT r2;
+		
+		TRACE ("%d %d %d\n",day,infoPtr->minSel.wDay,infoPtr->maxSel.wDay);
+		TRACE ("%d %d %d %d\n", r.left, r.top, r.right, r.bottom);
+		oldCol=SetTextColor (hdc, infoPtr->monthbk);
+		oldBk=SetBkColor (hdc,infoPtr->trailingtxt);
+		hbr= GetSysColorBrush (COLOR_GRAYTEXT);
+		hrgn=CreateEllipticRgn (r.left,r.top, r.right,r.bottom);
+	 	FillRgn (hdc,hrgn,hbr);
+
+		r2.left   = r.left-0.25*infoPtr->textWidth;
+		r2.top    = r.top;
+		r2.right  = r.left+0.5*infoPtr->textWidth;
+ 		r2.bottom = r.bottom;
+		if (haveSelectedDay) FillRect (hdc,&r2,hbr);
+		haveSelectedDay=TRUE;
+	} else {
+		haveSelectedDay=FALSE;
+	}
+	
+
+
+/* need to add some code for multiple selections */
+
+  if ((bold) && (!haveBoldFont)) {
+        SelectObject (hdc, infoPtr->hBoldFont);
+		haveBoldFont=TRUE;
+	}
+  if ((!bold) && (haveBoldFont)) {
+        SelectObject (hdc, infoPtr->hFont);
+		haveBoldFont=FALSE;
+	}
+
+	
+	
+  DrawTextA ( hdc, buf, lstrlenA(buf), &r, 
+                         DT_CENTER | DT_VCENTER | DT_SINGLELINE );
+  if (haveSelectedDay) {
+		SetTextColor(hdc, oldCol);
+		SetBkColor (hdc, oldBk);
+	}
+
+  if ((day==infoPtr->curSelDay) && (month==infoPtr->currentMonth)) {
+		HPEN hNewPen, hOldPen;
+
+		hNewPen = CreatePen(PS_DOT, 0, GetSysColor(COLOR_WINDOWTEXT) );
+		hbr= GetSysColorBrush (COLOR_WINDOWTEXT);
+   		hOldPen = SelectObject( hdc, hNewPen );
+		r.left+=2;
+		r.right-=2;
+		r.top-=1;
+		r.bottom+=1;
+		FrameRect (hdc, &r, hbr);
+   		SelectObject( hdc, hOldPen );
+  }
+}
+
+
+/* CHECKME: For `todays date', do we need to check the locale?*/
+/* CHECKME: For `todays date', how do is Y2K handled?*/
+/* FIXME:  todays date circle */
+
+static void MONTHCAL_Refresh (HWND hwnd, HDC hdc) 
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+	RECT *rcClient=&infoPtr->rcClient;
+	RECT *title=&infoPtr->title;
+	RECT *prev=&infoPtr->titlebtnprev;
+	RECT *next=&infoPtr->titlebtnnext;
+	RECT *titlemonth=&infoPtr->titlemonth;
+	RECT *titleyear=&infoPtr->titleyear;
+	RECT *prevmonth=&infoPtr->prevmonth;
+	RECT *nextmonth=&infoPtr->nextmonth;
+	RECT *days=&infoPtr->days;
+	RECT *weeknums=&infoPtr->weeknums;
+	RECT *rtoday=&infoPtr->today;
+    int i,j,m,mask,day,firstDay, weeknum,prevMonth;
+    int textHeight,textWidth;
+	SIZE size;
+	HBRUSH hbr;
+    HFONT currentFont;
+	TEXTMETRICA tm;
+//    LOGFONTA logFont;
+	char buf[20],*thisMonthtxt;
+    COLORREF oldTextColor,oldBkColor;
+    DWORD dwStyle = GetWindowLongA (hwnd, GWL_STYLE);
+	BOOL prssed;
+	
+
+    oldTextColor = SetTextColor(hdc, GetSysColor( COLOR_WINDOWTEXT));
+
+    currentFont = SelectObject (hdc, infoPtr->hFont);
+
+	/* FIXME: need a way to determine current font, without setting it */
+/*
+	if (infoPtr->hFont!=currentFont) {
+    	SelectObject (hdc, currentFont);
+		infoPtr->hFont=currentFont;
+		GetObjectA (currentFont, sizeof (LOGFONTA), &logFont);
+    	logFont.lfWeight=FW_BOLD;
+    	infoPtr->hBoldFont = CreateFontIndirectA (&logFont);
+	}
+*/
+
+	GetTextMetricsA (hdc, &tm);
+	infoPtr->textHeight=textHeight=tm.tmHeight + tm.tmExternalLeading;
+    GetTextExtentPoint32A (hdc, "Sun",3, &size);
+	infoPtr->textWidth=textWidth=size.cx+2;
+
+    GetClientRect (hwnd, rcClient);
+    hbr =  CreateSolidBrush (RGB(255,255,255));
+    DrawEdge (hdc, rcClient, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
+    FillRect (hdc, rcClient, hbr);
+    DeleteObject (hbr);
+
+/* calculate whole client area & title area */
+
+	infoPtr->rcClient.right=7*infoPtr->textWidth;
+	if (dwStyle & MCS_WEEKNUMBERS)
+          infoPtr->rcClient.right+=infoPtr->textWidth;
+	
+	title->top    = rcClient->top + 1;
+	title->bottom = title->top + 2*textHeight + 4;
+	title->left   = rcClient->left + 1;
+	title->right  = rcClient->right - 1;
+	infoPtr->rcClient.bottom=title->bottom + 6*textHeight;
+
+
+/* draw header */
+
+    hbr =  CreateSolidBrush (infoPtr->titlebk);
+    FillRect (hdc, title, hbr);
+	
+	prev->top		  = next->top        = title->top + 6;
+	prev->bottom      = next->bottom     = title->top + 2*textHeight - 3;
+	prev->right       = title->left  + 28;
+	prev->left        = title->left  + 4;
+	next->left        = title->right - 28;
+	next->right       = title->right - 4;
+   	titlemonth->bottom= titleyear->bottom = prev->top + 2*textHeight - 3;
+	titlemonth->top   = titleyear->top    = title->top + 6;
+	titlemonth->left  = title->left;
+	titlemonth->right = title->right;
+	prssed=FALSE;
+
+    DrawFrameControl(hdc, prev, DFC_SCROLL,
+    	DFCS_SCROLLLEFT | (prssed ? DFCS_PUSHED : 0) |
+    	(dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
+
+
+    DrawFrameControl(hdc, next, DFC_SCROLL,
+    	DFCS_SCROLLRIGHT | (prssed ? DFCS_PUSHED : 0) |
+    	(dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
+
+    oldBkColor=SetBkColor (hdc,infoPtr->titlebk);
+    SetTextColor(hdc, infoPtr->titletxt);
+   	SelectObject (hdc, infoPtr->hBoldFont);
+
+	thisMonthtxt=monthtxt[infoPtr->currentMonth - 1];
+	sprintf (buf,"%s %ld",thisMonthtxt,infoPtr->currentYear);
+    DrawTextA ( hdc, buf, strlen(buf), titlemonth, 
+                        DT_CENTER | DT_VCENTER | DT_SINGLELINE );
+   	SelectObject (hdc, infoPtr->hFont);
+
+ /* titlemonth left/right contained rect for whole titletxt ('June  1999')
+  * MCM_HitTestInfo wants month & year rects, so prepare these now.
+  * (no, we can't draw them separately; the whole text is centered) 
+  */
+  
+    GetTextExtentPoint32A (hdc, buf,lstrlenA (buf), &size);
+	titlemonth->left = title->right/2 - size.cx/2;
+	titleyear->right = title->right/2 + size.cx/2;
+    GetTextExtentPoint32A (hdc, thisMonthtxt,lstrlenA (thisMonthtxt), &size);
+    titlemonth->right= titlemonth->left+size.cx;
+    titleyear->right = titlemonth->right;
+    
+/* draw line under day abbreviatons */
+
+	 MoveToEx (hdc, rcClient->left+3, title->bottom + textHeight + 2, NULL);
+     LineTo   (hdc, rcClient->right-3, title->bottom + textHeight + 2);
+
+/* draw day abbreviations */
+
+    SetBkColor (hdc, infoPtr->monthbk);
+    SetTextColor(hdc, infoPtr->trailingtxt);
+
+	days->left   = rcClient->left;
+	if (dwStyle & MCS_WEEKNUMBERS) days->left+=textWidth;
+    days->right  = days->left + textWidth;
+    days->top    = title->bottom + 2;
+    days->bottom = title->bottom + textHeight + 2;
+	i=infoPtr->firstDay;
+
+	for (j=0; j<7; j++) {
+            DrawTextA ( hdc, daytxt[i], strlen(daytxt[i]), days,
+                         DT_CENTER | DT_VCENTER | DT_SINGLELINE );
+			i++;
+			if (i>7) i-=7;
+			days->left+=textWidth;
+			days->right+=textWidth;
+	}
+
+	days->left   = rcClient->left + j;
+	if (dwStyle & MCS_WEEKNUMBERS) days->left+=textWidth;
+    days->right  = rcClient->left + (j+1)*textWidth-2;
+
+/* draw day numbers; first, the previous month */
+
+	prevmonth->left=0;
+	if (dwStyle & MCS_WEEKNUMBERS) prevmonth->left=textWidth;
+
+	firstDay=MONTHCAL_CalculateDayOfWeek (1,infoPtr->currentMonth,infoPtr->currentYear);
+	prevMonth=infoPtr->currentMonth-1;
+	if (prevMonth==0) prevMonth=11;
+	day=mdays[prevMonth]-firstDay;
+	mask=1<<(day-1);
+
+	i=0;
+	m=0;
+	while (day<=mdays[prevMonth]) {
+			MONTHCAL_DrawDay (hdc, infoPtr, day, prevMonth, i, 0, 
+						infoPtr->monthdayState[m] & mask);
+			mask<<=1;
+			day++;
+			i++;
+	}
+
+	prevmonth->right = prevmonth->left+i*textWidth;
+	prevmonth->top   = days->bottom;
+	prevmonth->bottom= prevmonth->top + textHeight;
+
+/* draw `current' month  */
+
+	day=1;
+	infoPtr->firstDayplace=i;
+    SetTextColor(hdc, infoPtr->txt);
+	m++;
+	mask=1;
+ 	while (i<7) {
+			MONTHCAL_DrawDay (hdc, infoPtr, day, infoPtr->currentMonth, i, 0, 
+						infoPtr->monthdayState[m] & mask);
+			if ((infoPtr->currentMonth==infoPtr->todaysDate.wMonth) &&
+                (day==infoPtr->todaysDate.wDay)) 
+					MONTHCAL_CircleDay (hdc, infoPtr, i,j);
+			mask<<=1;
+			day++;
+			i++;
+		}
+
+	j=1;
+	i=0;
+	while (day<=mdays[infoPtr->currentMonth]) {	
+			MONTHCAL_DrawDay (hdc, infoPtr, day, infoPtr->currentMonth, i, j,
+						infoPtr->monthdayState[m] & mask);
+			if ((infoPtr->currentMonth==infoPtr->todaysDate.wMonth) &&
+                (day==infoPtr->todaysDate.wDay)) 
+					MONTHCAL_CircleDay (hdc, infoPtr, i,j);
+			mask<<=1;
+			day++;
+			i++;
+			if (i>6) {
+				i=0;
+				j++;
+			}
+	}
+
+/*  draw `next' month */
+
+/* note: the nextmonth rect only hints for the `half-week' that needs to be
+ * drawn to complete the current week. An eventual next week that needs to
+ * be drawn to complete the month calendar is not taken into account in
+ * this rect -- HitTest knows about this.*/
+  
+  
+
+	nextmonth->left   = prevmonth->left+i*textWidth;
+	nextmonth->right  = rcClient->right;
+	nextmonth->top    = days->bottom+(j+1)*textHeight;
+	nextmonth->bottom = nextmonth->top + textHeight;
+
+	day=1;
+	m++;
+	mask=1;
+    SetTextColor(hdc, infoPtr->trailingtxt);
+	while ((i<7) && (j<6)) {
+			MONTHCAL_DrawDay (hdc, infoPtr, day, infoPtr->currentMonth+1, i, j,
+						infoPtr->monthdayState[m] & mask);
+			mask<<=1;
+			day++;
+			i++;	
+			if (i==7) {
+				i=0;
+				j++;
+			}
+	}
+    SetTextColor(hdc, infoPtr->txt);
+			 
+
+
+/* draw `today' date if style allows it, and draw a circle before today's
+ * date if necessairy */
+
+	if (!( dwStyle & MCS_NOTODAY))  {
+	int offset=0;
+	if (!( dwStyle & MCS_NOTODAYCIRCLE))  { 
+			MONTHCAL_CircleDay (hdc, infoPtr, 0, 6);
+			offset+=textWidth;
+		}
+
+		MONTHCAL_CalcDayRect (infoPtr, rtoday, offset==textWidth, 6);
+		sprintf (buf,"Today: %d/%d/%d",infoPtr->todaysDate.wMonth,
+			infoPtr->todaysDate.wDay, infoPtr->todaysDate.wYear-1900);
+		rtoday->right  = rcClient->right;
+        SelectObject (hdc, infoPtr->hBoldFont);
+	    DrawTextA ( hdc, buf, lstrlenA(buf), rtoday, 
+                         DT_LEFT | DT_VCENTER | DT_SINGLELINE );
+        SelectObject (hdc, infoPtr->hFont);
+	}
+
+	if (dwStyle & MCS_WEEKNUMBERS)  {
+			/* display weeknumbers*/
+
+		weeknums->left   = 0;
+		weeknums->right  = textWidth;
+		weeknums->top    = days->bottom;
+		weeknums->bottom = days->bottom + textHeight;
+		
+		weeknum=0;
+		for (i=0; i<infoPtr->currentMonth; i++) 
+			weeknum+=mdays[i];
+
+		weeknum/=7;
+		for (i=0; i<6; i++) {
+			sprintf (buf,"%d",weeknum);
+	    	DrawTextA ( hdc, buf, lstrlenA(buf), weeknums, 
+                         DT_CENTER | DT_BOTTOM | DT_SINGLELINE );
+			weeknums->bottom+=textHeight;
+		}
+			
+	    MoveToEx (hdc, weeknums->right+3, weeknums->top, NULL);
+        LineTo   (hdc, weeknums->right-3, weeknums->bottom);
+		
+	}
+
+				 /* currentFont was font at entering Refresh */
+
+    SetBkColor (hdc, oldBkColor);
+    SelectObject (hdc, currentFont);     
+    SetTextColor (hdc, oldTextColor);
+}
+
+
+static LRESULT 
+MONTHCAL_GetMinReqRect (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+	LPRECT lpRect=(LPRECT) lParam;
+	TRACE ("%x %lx\n",wParam,lParam);
+	
+  /* validate parameters */
+
+    if ( (infoPtr==NULL) || (lpRect == NULL) ) return FALSE;
+
+	lpRect->left=infoPtr->rcClient.left;
+	lpRect->right=infoPtr->rcClient.right;
+	lpRect->top=infoPtr->rcClient.top;
+	lpRect->bottom=infoPtr->rcClient.bottom;
+	return TRUE;
+}
+
+static LRESULT 
+MONTHCAL_GetColor (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+	TRACE ("%x %lx\n",wParam,lParam);
+
+ 	switch ((int)wParam) {
+		case MCSC_BACKGROUND:
+			return infoPtr->bk;
+		case MCSC_TEXT:
+			return infoPtr->txt;
+		case MCSC_TITLEBK:
+			return infoPtr->titlebk;
+		case MCSC_TITLETEXT:
+			return infoPtr->titletxt;
+		case MCSC_MONTHBK:
+			return infoPtr->monthbk;
+		case MCSC_TRAILINGTEXT:
+			return infoPtr->trailingtxt;
+	}
+
+ return -1;
+}
+
+static LRESULT 
+MONTHCAL_SetColor (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+	int prev=-1;
+
+	TRACE ("%x %lx\n",wParam,lParam);
+
+ 	switch ((int)wParam) {
+		case MCSC_BACKGROUND:
+			prev=infoPtr->bk;
+			infoPtr->bk=(COLORREF) lParam;
+			break;
+		case MCSC_TEXT:
+			prev=infoPtr->txt;
+			infoPtr->txt=(COLORREF) lParam;
+			break;
+		case MCSC_TITLEBK:
+			prev=infoPtr->titlebk;
+			infoPtr->titlebk=(COLORREF) lParam;
+			break;
+		case MCSC_TITLETEXT:
+			prev=infoPtr->titletxt;
+			infoPtr->titletxt=(COLORREF) lParam;
+			break;
+		case MCSC_MONTHBK:
+			prev=infoPtr->monthbk;
+			infoPtr->monthbk=(COLORREF) lParam;
+			break;
+		case MCSC_TRAILINGTEXT:
+			prev=infoPtr->trailingtxt;
+			infoPtr->trailingtxt=(COLORREF) lParam;
+			break;
+	}
+
+ return prev;
+}
+
+static LRESULT 
+MONTHCAL_GetMonthDelta (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+	TRACE ("%x %lx\n",wParam,lParam);
+
+	if (infoPtr->delta) return infoPtr->delta;
+	else return infoPtr->visible;
+}
+
+static LRESULT 
+MONTHCAL_SetMonthDelta (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+    int prev=infoPtr->delta;
+
+	TRACE ("%x %lx\n",wParam,lParam);
+	
+	infoPtr->delta=(int) wParam;
+	return prev;
+}
+
+
+
+static LRESULT 
+MONTHCAL_GetFirstDayOfWeek (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+	
+ 	return infoPtr->firstDay;
+}
+
+/* FIXME: we need more error checking here */
+
+static LRESULT 
+MONTHCAL_SetFirstDayOfWeek (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+    int prev=infoPtr->firstDay;
+	char buf[40];
+	int day;
+
+	TRACE ("%x %lx\n",wParam,lParam);
+
+	if ((lParam>=0) && (lParam<7)) {
+			infoPtr->firstDay=(int) lParam;
+			GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_IFIRSTDAYOFWEEK,
+              	buf, sizeof(buf));
+    		TRACE ("%s %d\n",buf,strlen(buf));
+            if ((sscanf(buf,"%d",&day)==1) && (infoPtr->firstDay!=day)) 
+				infoPtr->firstDay|=HIWORD(TRUE);
+				
+	}
+    return prev;
+}
+
+
+
+/* FIXME: fill this in */
+
+static LRESULT
+MONTHCAL_GetMonthRange (HWND hwnd, WPARAM wParam, LPARAM lParam) 
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+  TRACE ("%x %lx\n",wParam,lParam);
+ 
+  return infoPtr->monthRange;
+}
+
+static LRESULT
+MONTHCAL_GetMaxTodayWidth (HWND hwnd)
+
+{
+ MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+ return (infoPtr->today.right-infoPtr->today.left);
+}
+
+/* FIXME: are validated times taken from current date/time or simply
+ * copied? 
+ * FIXME:    check whether MCM_GETMONTHRANGE shows correct result after
+ *            adjusting range with MCM_SETRANGE
+ */
+
+static LRESULT
+MONTHCAL_SetRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME lprgSysTimeArray[1];
+  int prev;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  
+  if (wParam & GDTR_MAX) {
+		if (MONTHCAL_ValidateTime(lprgSysTimeArray[1])){
+			MONTHCAL_CopyTime (&lprgSysTimeArray[1],&infoPtr->maxDate);
+			infoPtr->rangeValid|=GDTR_MAX;
+		} else  {
+			GetSystemTime (&infoPtr->todaysDate);
+			MONTHCAL_CopyTime (&infoPtr->todaysDate,&infoPtr->maxDate);
+			}
+		}
+  if (wParam & GDTR_MIN) {
+		if (MONTHCAL_ValidateTime(lprgSysTimeArray[0])) {
+			MONTHCAL_CopyTime (&lprgSysTimeArray[0],&infoPtr->maxDate);
+			infoPtr->rangeValid|=GDTR_MIN;
+		} else {
+			GetSystemTime (&infoPtr->todaysDate);
+			MONTHCAL_CopyTime (&infoPtr->todaysDate,&infoPtr->maxDate);
+			}
+	    }
+
+  prev=infoPtr->monthRange;
+  infoPtr->monthRange=infoPtr->maxDate.wMonth-infoPtr->minDate.wMonth;
+  if (infoPtr->monthRange!=prev) 
+	COMCTL32_ReAlloc (infoPtr->monthdayState, 
+		infoPtr->monthRange*sizeof(MONTHDAYSTATE));
+
+  return 1;
+}
+
+
+/* CHECKME: At the moment, we copy ranges anyway,regardless of
+ * infoPtr->rangeValid; a invalid range is simply filled with zeros in 
+ * SetRange.  Is this the right behavior?
+*/
+
+static LRESULT
+MONTHCAL_GetRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lprgSysTimeArray=(SYSTEMTIME *) lParam;
+
+  /* validate parameters */
+
+  if ( (infoPtr==NULL) || (lprgSysTimeArray==NULL) ) return FALSE;
+
+  MONTHCAL_CopyTime (&infoPtr->maxDate,&lprgSysTimeArray[1]);
+  MONTHCAL_CopyTime (&infoPtr->minDate,&lprgSysTimeArray[0]);
+
+  return infoPtr->rangeValid;
+}
+
+static LRESULT
+MONTHCAL_SetDayState (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  int i,iMonths=(int) wParam;
+  MONTHDAYSTATE *dayStates=(LPMONTHDAYSTATE) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  if (iMonths!=infoPtr->monthRange) return 0;
+
+  for (i=0; i<iMonths; i++) 
+		infoPtr->monthdayState[i]=dayStates[i];
+  return 1;
+}
+
+static LRESULT 
+MONTHCAL_GetCurSel (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lpSel=(SYSTEMTIME *) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  if ( (infoPtr==NULL) || (lpSel==NULL) ) return FALSE;
+  if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT) return FALSE;
+
+  MONTHCAL_CopyTime (&infoPtr->minSel,lpSel);
+  return TRUE;
+}
+
+
+/* FIXME: if the specified date is not visible, make it visible */
+/* FIXME: redraw? */
+
+static LRESULT 
+MONTHCAL_SetCurSel (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lpSel=(SYSTEMTIME *) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  if ( (infoPtr==NULL) || (lpSel==NULL) ) return FALSE;
+  if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT) return FALSE;
+
+  TRACE ("%d %d\n",lpSel->wMonth,lpSel->wDay);
+
+  MONTHCAL_CopyTime (lpSel,&infoPtr->minSel);
+  MONTHCAL_CopyTime (lpSel,&infoPtr->maxSel);
+
+  return TRUE;
+}
+
+static LRESULT 
+MONTHCAL_GetMaxSelCount (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  return infoPtr->maxSelCount;
+}
+
+static LRESULT 
+MONTHCAL_SetMaxSelCount (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+
+  TRACE ("%x %lx\n",wParam,lParam);
+  if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT)  {
+  		infoPtr->maxSelCount=wParam;
+  }
+
+  return TRUE;
+}
+
+
+static LRESULT 
+MONTHCAL_GetSelRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lprgSysTimeArray=(SYSTEMTIME *) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+
+  /* validate parameters */
+
+  if ( (infoPtr==NULL) || (lprgSysTimeArray==NULL) ) return FALSE;
+
+  if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT)  {
+  		MONTHCAL_CopyTime (&infoPtr->maxSel,&lprgSysTimeArray[1]);
+    	MONTHCAL_CopyTime (&infoPtr->minSel,&lprgSysTimeArray[0]);
+  		TRACE ("[min,max]=[%d %d]\n",infoPtr->minSel.wDay,infoPtr->maxSel.wDay);
+    	return TRUE;
+  }
+ 
+  return FALSE;
+}
+
+static LRESULT 
+MONTHCAL_SetSelRange (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lprgSysTimeArray=(SYSTEMTIME *) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+
+  /* validate parameters */
+
+  if ( (infoPtr==NULL) || (lprgSysTimeArray==NULL) ) return FALSE;
+
+  if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT)  {
+		infoPtr->selValid=TRUE;
+  		MONTHCAL_CopyTime (&lprgSysTimeArray[1],&infoPtr->maxSel);
+    	MONTHCAL_CopyTime (&lprgSysTimeArray[0],&infoPtr->minSel);
+  		TRACE ("[min,max]=[%d %d]\n",infoPtr->minSel.wDay,infoPtr->maxSel.wDay);
+    	return TRUE;
+  }
+ 
+  return FALSE;
+}
+
+
+
+
+static LRESULT 
+MONTHCAL_GetToday (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+  MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+  SYSTEMTIME *lpToday=(SYSTEMTIME *) lParam;
+
+  TRACE ("%x %lx\n",wParam,lParam);
+
+  /* validate parameters */
+
+  if ( (infoPtr==NULL) || (lpToday==NULL) ) return FALSE;
+  MONTHCAL_CopyTime (&infoPtr->todaysDate,lpToday);
+  return TRUE;
+}
+
+
+
+static int MONTHCAL_inbox (int x, int y, RECT r) 
+
+{
+ // TRACE ("%d %d [%d %d %d %d]\n",x,y,r.top,r.bottom,r.left,r.right);
+ 
+ if ((y>r.top) && (y<r.bottom) && (x>r.left) && (x<r.right)) return TRUE;
+
+ return FALSE;
+}
+
+
+static LRESULT
+MONTHCAL_HitTest (HWND hwnd, LPARAM lParam)
+{
+ MONTHCAL_INFO *infoPtr=MONTHCAL_GetInfoPtr(hwnd);
+ PMCHITTESTINFO lpht=(PMCHITTESTINFO) lParam;
+ UINT x,y;
+ DWORD retval;
+
+ x=lpht->pt.x;
+ y=lpht->pt.y;
+ retval=MCHT_NOWHERE;
+ 
+
+	/* are we in the header? */
+
+ if (MONTHCAL_inbox (x,y,infoPtr->title)) {
+		
+		if (MONTHCAL_inbox (x,y,infoPtr->titlebtnprev)) {
+			retval=MCHT_TITLEBTNPREV;
+			goto done;
+		}
+		if (MONTHCAL_inbox (x,y,infoPtr->titlebtnnext)) {
+			retval=MCHT_TITLEBTNNEXT;
+			goto done;
+		}
+		if (MONTHCAL_inbox (x,y,infoPtr->titlemonth)) {
+			retval=MCHT_TITLEMONTH;
+			goto done;
+		}
+		if (MONTHCAL_inbox (x,y,infoPtr->titleyear)) {
+			retval=MCHT_TITLEYEAR;
+			goto done;
+		}
+		retval=MCHT_TITLE;
+		goto done;
+	}
+
+ if (MONTHCAL_inbox (x,y,infoPtr->days)) {
+		retval=MCHT_CALENDARDAY;  /* FIXME: find out which day we're on */
+		goto done;
+	}
+ if (MONTHCAL_inbox (x,y,infoPtr->weeknums)) {  
+		retval=MCHT_CALENDARWEEKNUM;/* FIXME: find out which day we're on */
+		goto done;				    
+	}
+ if (MONTHCAL_inbox (x,y,infoPtr->prevmonth)) {  
+		retval=MCHT_CALENDARDATEPREV;
+		goto done;				    
+	}
+ if (MONTHCAL_inbox (x,y,infoPtr->nextmonth) || 
+    ((x>infoPtr->nextmonth.left) && (x<infoPtr->nextmonth.right) &&
+     (y>infoPtr->nextmonth.bottom) && (y<infoPtr->today.top))) {
+		retval=MCHT_CALENDARDATENEXT;
+		goto done;				   
+	}
+
+
+ if (MONTHCAL_inbox (x,y,infoPtr->today)) {
+		retval=MCHT_TODAYLINK; 
+		goto done;
+	}
+
+/* MCHT_CALENDARDATE determination: since the next & previous month have
+ * been handled already (MCHT_CALENDARDATEPREV/NEXT), we only have to check
+ * whether we're in the calendar area. infoPtr->prevMonth.left handles the 
+ * MCS_WEEKNUMBERS style nicely.
+ */
+        
+
+ TRACE ("%d %d [%d %d %d %d] [%d %d %d %d]\n",x,y, 
+	infoPtr->prevmonth.left, infoPtr->prevmonth.right,
+	infoPtr->prevmonth.top, infoPtr->prevmonth.bottom,
+	infoPtr->nextmonth.left, infoPtr->nextmonth.right,
+	infoPtr->nextmonth.top, infoPtr->nextmonth.bottom);
+
+ if ((x>infoPtr->prevmonth.left) && (x<infoPtr->nextmonth.right) &&
+ 	 (y>infoPtr->prevmonth.top) && (y<infoPtr->nextmonth.bottom))  {
+		lpht->st.wYear=infoPtr->currentYear;
+		lpht->st.wMonth=infoPtr->currentMonth;
+		
+		lpht->st.wDay=MONTHCAL_CalcDayFromPos (infoPtr,x,y);
+
+		TRACE ("day hit: %d\n",lpht->st.wDay);
+		retval=MCHT_CALENDARDATE;
+		goto done;
+
+	}
+
+	/* Hit nothing special? What's left must be background :-) */
+		
+  retval=MCHT_CALENDARBK;       
+ done: 
+  lpht->uHit=retval;
+  return retval;
+}
+
+
+
+static LRESULT
+MONTHCAL_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr = MONTHCAL_GetInfoPtr (hwnd);
+	MCHITTESTINFO ht;
+	HDC hdc;
+	DWORD hit;
+	HMENU hMenu;
+	HWND retval;
+
+
+	TRACE ("%x %lx\n",wParam,lParam);
+	
+    ht.pt.x = (INT)LOWORD(lParam);
+    ht.pt.y = (INT)HIWORD(lParam);
+    hit=MONTHCAL_HitTest (hwnd, (LPARAM) &ht);
+
+    hdc=GetDC (hwnd);
+
+	if (hit & MCHT_NEXT){
+		infoPtr->currentMonth++;
+		if (infoPtr->currentMonth>12) {
+			infoPtr->currentYear++;
+			infoPtr->currentMonth=1;
+		}
+	}
+	if (hit & MCHT_PREV) { 
+		infoPtr->currentMonth--;
+		if (infoPtr->currentMonth<1) {
+			infoPtr->currentYear--;
+			infoPtr->currentMonth=12;
+		}
+	}
+
+	if (hit == MCHT_TITLEMONTH) {
+/*
+		HRSRC hrsrc = FindResourceA( COMCTL32_hModule, MAKEINTRESOURCEA(IDD_MCMONTHMENU), RT_MENUA );
+    	if (!hrsrc) { 
+			TRACE ("returning zero\n");
+			return 0;
+		}
+		TRACE ("resource is:%x\n",hrsrc);
+    	hMenu=LoadMenuIndirectA( (LPCVOID)LoadResource( COMCTL32_hModule, hrsrc ));
+			
+		TRACE ("menu is:%x\n",hMenu);
+*/
+
+		hMenu=CreateMenu ();
+	AppendMenuA (hMenu,MF_STRING,IDM_JAN,"January");
+	AppendMenuA (hMenu,MF_STRING,IDM_FEB,"February");
+	AppendMenuA (hMenu,MF_STRING,IDM_MAR,"March");
+	
+		retval=CreateWindowA (POPUPMENU_CLASS_ATOM, NULL, 
+			WS_CHILD | WS_VISIBLE,
+ 			0,0,100,220, 
+			hwnd, hMenu, GetWindowLongA (hwnd, GWL_HINSTANCE), NULL);
+		TRACE ("hwnd returned:%x\n",retval);
+
+	}
+	if (hit == MCHT_TITLEYEAR) {
+			FIXME ("create updown for yearselection\n");
+	}
+	if (hit == MCHT_TODAYLINK) {
+			FIXME ("set currentday\n");
+	}
+	if (hit == MCHT_CALENDARDATE) {
+			SYSTEMTIME selArray[2];
+
+			TRACE ("\n");
+			MONTHCAL_CopyTime (&ht.st, &selArray[0]);
+			MONTHCAL_CopyTime (&ht.st, &selArray[1]);
+			MONTHCAL_SetSelRange (hwnd,0,(LPARAM) &selArray); 
+
+			infoPtr->firstSelDay=ht.st.wDay;
+			infoPtr->curSelDay=ht.st.wDay;
+			infoPtr->selValid=MC_SEL_LBUTDOWN;
+	}
+	
+	MONTHCAL_Refresh (hwnd,hdc);
+	ReleaseDC (hwnd,hdc);
+	return 0;
+}
+
+static LRESULT
+MONTHCAL_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
+
+{
+    MONTHCAL_INFO *infoPtr = MONTHCAL_GetInfoPtr (hwnd);
+
+	infoPtr->selValid=MC_SEL_LBUTUP;
+	infoPtr->curSelDay=0;
+	return 0;
+}
+
+
+static LRESULT
+MONTHCAL_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+    MONTHCAL_INFO *infoPtr = MONTHCAL_GetInfoPtr (hwnd);
+	MCHITTESTINFO ht;
+	HDC hdc;
+	int selday,hit;
+	RECT r;
+
+	if (infoPtr->selValid!=MC_SEL_LBUTDOWN) return 0;
+
+	ht.pt.x=LOWORD(lParam);
+	ht.pt.y=HIWORD(lParam);
+	
+	hit=MONTHCAL_HitTest (hwnd, (LPARAM) &ht);
+
+	/* not on the calendar date numbers? bail out */
+	TRACE ("hit:%x\n",hit);
+	if ((hit & MCHT_CALENDARDATE) !=MCHT_CALENDARDATE) return 0;
+
+	selday=ht.st.wDay;
+	infoPtr->curSelDay=selday;
+  	MONTHCAL_CalcPosFromDay (infoPtr,selday,ht.st.wMonth,&r);
+
+	if ( GetWindowLongA( hwnd, GWL_STYLE) & MCS_MULTISELECT)  {
+		SYSTEMTIME selArray[2];
+		int i;
+
+    	MONTHCAL_GetSelRange (hwnd,0,(LPARAM) &selArray);
+		i=0;
+		if (infoPtr->firstSelDay==selArray[0].wDay) i=1;
+		TRACE ("oldRange:%d %d %d %d\n",infoPtr->firstSelDay,selArray[0].wDay,selArray[1].wDay,i);
+		if (infoPtr->firstSelDay==selArray[1].wDay) {  
+				/* 1st time we get here: selArray[0]=selArray[1])  */
+				/* if we're still at the first selected date, return */
+			if (infoPtr->firstSelDay==selday) goto done;
+				
+			if (selday<infoPtr->firstSelDay) i=0;
+		}
+			
+		if (abs(infoPtr->firstSelDay - selday) >= infoPtr->maxSelCount) {
+			if (selday>infoPtr->firstSelDay)
+				selday=infoPtr->firstSelDay+infoPtr->maxSelCount;
+			else
+				selday=infoPtr->firstSelDay-infoPtr->maxSelCount;
+		}
+		
+		if (selArray[i].wDay!=selday) {
+
+		TRACE ("newRange:%d %d %d %d\n",infoPtr->firstSelDay,selArray[0].wDay,selArray[1].wDay,i);
+			
+			selArray[i].wDay=selday;
+
+
+			if (selArray[0].wDay>selArray[1].wDay) {
+				DWORD tempday;
+				tempday=selArray[1].wDay;
+				selArray[1].wDay=selArray[0].wDay;
+				selArray[0].wDay=tempday;
+			}
+
+    		MONTHCAL_SetSelRange (hwnd,0,(LPARAM) &selArray);
+		}
+	}
+
+done:
+
+   	hdc=GetDC (hwnd);
+   	MONTHCAL_Refresh (hwnd, hdc);
+   	ReleaseDC (hwnd, hdc);
+
+	return 0;
+}
+
+static LRESULT
+MONTHCAL_Paint (HWND hwnd, WPARAM wParam)
+{
+    HDC hdc;
+    PAINTSTRUCT ps;
+
+    hdc = wParam==0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
+    MONTHCAL_Refresh (hwnd, hdc);
+    if(!wParam)
+    EndPaint (hwnd, &ps);
+    return 0;
+}
+
+static LRESULT
+MONTHCAL_KillFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+    HDC hdc;
+
+    TRACE ("\n");
+
+    hdc = GetDC (hwnd);
+    MONTHCAL_Refresh (hwnd, hdc);
+    ReleaseDC (hwnd, hdc);
+    InvalidateRect (hwnd, NULL, TRUE);
+
+    return 0;
+}
+
+
+static LRESULT
+MONTHCAL_SetFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+    HDC hdc;
+
+    TRACE ("\n");
+
+    hdc = GetDC (hwnd);
+    MONTHCAL_Refresh (hwnd, hdc);
+    ReleaseDC (hwnd, hdc);
+
+    return 0;
+}
+
+
+/* FIXME: check whether dateMin/dateMax need to be adjusted. */
+
 
 static LRESULT
 MONTHCAL_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
     MONTHCAL_INFO *infoPtr;
+	LOGFONTA	logFont;
 
     /* allocate memory for info structure */
     infoPtr = (MONTHCAL_INFO *)COMCTL32_Alloc (sizeof(MONTHCAL_INFO));
     SetWindowLongA (hwnd, 0, (DWORD)infoPtr);
 
+ 	if (infoPtr == NULL) {
+        ERR ( "could not allocate info memory!\n");
+        return 0;
+    }
+    if ((MONTHCAL_INFO*) GetWindowLongA( hwnd, 0) != infoPtr) {
+        ERR ( "pointer assignment error!\n");
+        return 0;
+    }
+
+
+    infoPtr->hFont=GetStockObject(DEFAULT_GUI_FONT);
+		GetObjectA (infoPtr->hFont, sizeof (LOGFONTA), &logFont);
+    	logFont.lfWeight=FW_BOLD;
+    	infoPtr->hBoldFont = CreateFontIndirectA (&logFont);
 
     /* initialize info structure */
+   /* FIXME: calculate systemtime ->> localtime (substract timezoneinfo) */
 
-
+	GetSystemTime (&infoPtr->todaysDate);
+	infoPtr->firstDay  = 0;
+	infoPtr->currentMonth = infoPtr->todaysDate.wMonth;
+	infoPtr->currentYear= infoPtr->todaysDate.wYear;
+	MONTHCAL_CopyTime (&infoPtr->todaysDate,&infoPtr->minDate);
+	MONTHCAL_CopyTime (&infoPtr->todaysDate,&infoPtr->maxDate);
+	infoPtr->maxSelCount=6;
+	infoPtr->monthRange=3;
+	infoPtr->monthdayState=COMCTL32_Alloc 
+                           (infoPtr->monthRange*sizeof(MONTHDAYSTATE));
+	infoPtr->titlebk     = GetSysColor (COLOR_GRAYTEXT);
+	infoPtr->titletxt    = GetSysColor (COLOR_WINDOW);
+	infoPtr->monthbk     = GetSysColor (COLOR_WINDOW);
+	infoPtr->trailingtxt = GetSysColor (COLOR_GRAYTEXT);
+	infoPtr->bk		     = GetSysColor (COLOR_WINDOW);
+	infoPtr->txt	     = GetSysColor (COLOR_WINDOWTEXT);
 
     return 0;
 }
@@ -52,12 +1325,7 @@
 {
     MONTHCAL_INFO *infoPtr = MONTHCAL_GetInfoPtr (hwnd);
 
-
-
-
-
-
-    /* free ipaddress info data */
+    /* free month calendar info data */
     COMCTL32_Free (infoPtr);
 
     return 0;
@@ -66,12 +1334,97 @@
 
 
 
+
 LRESULT WINAPI
 MONTHCAL_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
     switch (uMsg)
     {
 
+	case MCM_GETCURSEL:
+        return MONTHCAL_GetCurSel (hwnd, wParam, lParam);
+
+	case MCM_SETCURSEL:
+        return MONTHCAL_SetCurSel (hwnd, wParam, lParam);
+
+	case MCM_GETMAXSELCOUNT:
+        return MONTHCAL_GetMaxSelCount (hwnd, wParam, lParam);
+
+	case MCM_SETMAXSELCOUNT:
+        return MONTHCAL_SetMaxSelCount (hwnd, wParam, lParam);
+
+	case MCM_GETSELRANGE:
+        return MONTHCAL_GetSelRange (hwnd, wParam, lParam);
+
+	case MCM_SETSELRANGE:
+        return MONTHCAL_SetSelRange (hwnd, wParam, lParam);
+
+	case MCM_GETMONTHRANGE:
+        return MONTHCAL_GetMonthRange (hwnd, wParam, lParam);
+
+	case MCM_SETDAYSTATE:
+        return MONTHCAL_SetDayState (hwnd, wParam, lParam);
+
+	case MCM_GETMINREQRECT:
+        return MONTHCAL_GetMinReqRect (hwnd, wParam, lParam);
+
+	case MCM_GETCOLOR:
+	     return MONTHCAL_GetColor (hwnd, wParam, lParam);
+
+	case MCM_SETCOLOR:
+	     return MONTHCAL_SetColor (hwnd, wParam, lParam);
+
+	case MCM_GETTODAY:
+	     return MONTHCAL_GetToday (hwnd, wParam, lParam);
+
+	case MCM_SETTODAY:
+	    FIXME ( "Unimplemented msg MCM_SETTODAY\n");
+        return 0;
+
+	case MCM_HITTEST:
+	    return MONTHCAL_HitTest (hwnd,lParam);
+
+	case MCM_GETFIRSTDAYOFWEEK:
+        return MONTHCAL_GetFirstDayOfWeek (hwnd, wParam, lParam);
+
+	case MCM_SETFIRSTDAYOFWEEK:
+        return MONTHCAL_SetFirstDayOfWeek (hwnd, wParam, lParam);
+
+	case MCM_GETRANGE:
+	     return MONTHCAL_GetRange (hwnd, wParam, lParam);
+
+	case MCM_SETRANGE:
+	     return MONTHCAL_SetRange (hwnd, wParam, lParam);
+
+	case MCM_GETMONTHDELTA:
+	     return MONTHCAL_GetMonthDelta (hwnd, wParam, lParam);
+
+	case MCM_SETMONTHDELTA:
+	     return MONTHCAL_SetMonthDelta (hwnd, wParam, lParam);
+
+	case MCM_GETMAXTODAYWIDTH:
+	     return MONTHCAL_GetMaxTodayWidth (hwnd);
+
+	case WM_GETDLGCODE:
+        return DLGC_WANTARROWS | DLGC_WANTCHARS;
+
+    case WM_KILLFOCUS:
+        return MONTHCAL_KillFocus (hwnd, wParam, lParam);
+
+    case WM_LBUTTONDOWN:
+        return MONTHCAL_LButtonDown (hwnd, wParam, lParam);
+
+    case WM_MOUSEMOVE:
+        return MONTHCAL_MouseMove (hwnd, wParam, lParam);
+
+    case WM_LBUTTONUP:
+        return MONTHCAL_LButtonUp (hwnd, wParam, lParam);
+
+    case WM_PAINT:
+        return MONTHCAL_Paint (hwnd, wParam);
+
+    case WM_SETFOCUS:
+        return MONTHCAL_SetFocus (hwnd, wParam, lParam);
 
 	case WM_CREATE:
 	    return MONTHCAL_Create (hwnd, wParam, lParam);
@@ -81,7 +1434,7 @@
 
 	default:
 	    if (uMsg >= WM_USER)
-		ERR("unknown msg %04x wp=%08x lp=%08lx\n",
+		ERR ( "unknown msg %04x wp=%08x lp=%08lx\n",
 		     uMsg, wParam, lParam);
 	    return DefWindowProcA (hwnd, uMsg, wParam, lParam);
     }