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WindowsCE.[Essential Windows CE Application Programming].Jon Wiley & Son.zip

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<B>Essential Windows CE Application Programming</B>
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<I>(Publisher: John Wiley & Sons, Inc.)</I>
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Author(s): Robert Burdick
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ISBN: 0471327476
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Publication Date: 03/01/99
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<!--CHAPTER=5//-->
<!--PAGES=131-132//-->
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<P><BR></P>
<P><FONT SIZE="+1"><B>Date Time Picker Control Messages and Notifications</B></FONT></P>
<P>Tables 5.4 and 5.5 give a complete list of date time picker control messages and notifications, along with their meanings.
</P>
<TABLE WIDTH="100%" BORDER RULES="ROWS"><CAPTION ALIGN=LEFT><B>Table 5.4</B> Date Time Picker Control Messages
<TR>
<TH WIDTH="25%" ALIGN="LEFT">MESSAGE
<TH WIDTH="75%" ALIGN="LEFT">MEANING
<TR>
<TD VALIGN="TOP">DTM_GETMCCOLOR
<TD>Retrieves the color of the specified part of the month calendar child control contained by the date time picker. Message is only supported for date time pickers that do not have the DTS_UPDOWN style bit set, i.e., that have month calendar controls. Compare to MCM_GETCOLOR.
<TR>
<TD VALIGN="TOP">DTM_GETMCFONT
<TD>Retrieves the font currently in use by the month calendar child control contained by the date time picker. Message is only supported for date time pickers that do not have the DTS_UPDOWN style bit set.
<TR>
<TD VALIGN="TOP">DTM_GETMONTHCAL
<TD>Retrieves the HWND of the month calendar child control contained by the date time picker. Only supported for date time pickers that do not have the DTS_UPDOWN style bit set.
<TR>
<TD VALIGN="TOP">DTM_GETRANGE
<TD>Message gets the range of date time values that the date time picker can display.
<TR>
<TD VALIGN="TOP">DTM_GETSYSTEMTIME
<TD>Retrieves the time currently displayed in the date time picker. Time is returned as a SYSTEMTIME.
<TR>
<TD VALIGN="TOP">DTM_SETFORMAT
<TD>Message sets the date time picker control&#146;s display format string.
<TR>
<TD VALIGN="TOP">DTM_SETMCCOLOR
<TD>Message sets the color of the specified part of the month calendar child control contained by the date time picker. Message is only supported for date time pickers that do not have the DTS_UPDOWN style bit set. Compare to MCM_SETCOLOR.
<TR>
<TD VALIGN="TOP">DTM_SETMCFONT
<TD>Message sets the font used by the month calendar child control contained by the date time picker. Message is only supported for date time pickers that do not have the DTS_UPDOWN style bit set.
<TR>
<TD VALIGN="TOP">DTM_SETRANGE
<TD>Message sets the range of date time values that the date time picker can display.
<TR>
<TD VALIGN="TOP">DTM_SETSYSTEMTIME
<TD>Message sets the date and time to be displayed by the date time picker.
</TABLE>
<P>
</P>
<TABLE WIDTH="100%" BORDER RULES="ROWS"><CAPTION ALIGN=LEFT><B>Table 5.5</B> Date Time Picker Control Notifications
<TR>
<TH WIDTH="25%" ALIGN="LEFT">NOTIFICATION
<TH WIDTH="75%" ALIGN="LEFT">MEANING
<TR>
<TD VALIGN="TOP">DTN_CLOSEUP
<TD>Sent by the control when the user closes the drop-down month calendar child control contained by the date time picker. Only applicable to date time pickers that do not have the DTS_UPDOWN style bit set.
<TR>
<TD VALIGN="TOP">DTN_DATETIMECHANGE
<TD>Sent by the control whenever the date time display changes.
<TR>
<TD VALIGN="TOP">DTN_DROPDOWN
<TD>Sent by the control when the user opens the drop-down month calendar child control contained by the date time picker. Only applicable to date time pickers that do not have the DTS_UPDOWN style bit set.
<TR>
<TD VALIGN="TOP">DTN_FORMAT
<TD>Sent by the control for each callback field in a format string. The application responds by providing the text to display in the callback fields.
<TR>
<TD VALIGN="TOP">DTN_FORMATQUERY
<TD>Sent by the control for each callback field in a format string. The application responds by specifying the maximum pixel width of the text that can be displayed in the corresponding callback field.
<TR>
<TD VALIGN="TOP">DTN_USERSTRING
<TD>Sent by the control after the user edits text in the date time picker&#146;s date time display.
<TR>
<TD VALIGN="TOP">DTN_WMKEYDOWN
<TD>Sent by the control whenever the user types in a callback field. Responding to this notification allows the control owner to implement custom behavior for keystrokes such as arrow keys.
</TABLE>
<P><FONT SIZE="+1"><B>The Complete Sample Application</B></FONT></P>
<P>I&#146;ll be the first to admit that this application won&#146;t be making any headlines, but it will help make you more familiar with how to use date time picker controls.
</P>
<P><B>datetime.h</B></P>
<!-- CODE //-->
<PRE>
  #ifndef __DATETIME_H_
  #define __DATETIME_H_
  //Child control IDs
  #define IDC_EXIT   1024
  #define IDC_DATETIME 1025
  TCHAR pszAppName[] = TEXT("DATETIMESAMPLE");
  TCHAR pszTitle[] = TEXT("Windows CE Date Time Control");
  HINSTANCE ghInst;
  int nWidth; //Main window width
  int nHeight; //Main window height
  /* Define the various windows used in this application:
    hwndMain &#151;&gt; The main application window.
    hwndExit &#151;&gt; Exit button
    hwndDateTime &#151;&gt; Date time picker control
   */
  HWND hwndMain;
  HWND hwndExit;
  HWND hwndDateTime;
  LRESULT CALLBACK WndProc(HWND hwnd,
    UINT message,
    WPARAM wParam,
    LPARAM lParam);
  #endif
</PRE>
<!-- END CODE //-->
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