Re: Displaying the "Sending Message" message

[Ben Combee]

At 09:13 AM 4/13/2005, you wrote:
On the Treo 600 SMS application, when you send a message, a little box 
appears with the text "Sending Message". Does anyone know how they are 
doing that? Is that a little form that is displayed? Is it some control?

Is there a code sample somewhere?
If you use the POL library, there's a class called CWaitForm that lets you 
show a form for a limited length of time, and a class called CWaitFrame 
that does a small message centered on the screen.  That was based on code I 
originally wrote for my SXSW app... if you want to translate this from C++ 
to plain C, feel free, although the code in POL has better error checking 
and is more flexible.

CMessageFrame::CMessageFrame(
    CString line1, CString line2, UInt16 yOffset) :
    m_savedBits(0)
{
    CRect rect;
    Int16 line1Width = FntCharsWidth(line1, line1.GetLength());
    Int16 line2Width = FntCharsWidth(line2, line2.GetLength());
    rect.extent.x = pol_max(line1Width, line2Width) + 10;
    rect.extent.y = 2 * FntCharHeight() + 6;
    rect.topLeft.x = (160 - rect.extent.x) / 2;
    rect.topLeft.y = (160 - yOffset - rect.extent.y) / 2 + yOffset;
    CPoint line1Origin(
        rect.topLeft.x + (rect.extent.x - line1Width) / 2,
        rect.topLeft.y + 3);
    CPoint line2Origin(
        rect.topLeft.x + (rect.extent.x - line2Width) / 2,
        rect.topLeft.y + FntCharHeight() + 3);
    WinGetFramesRectangle(dialogFrame, &rect, &m_savedBitsRect);
    UInt16 error;
    m_savedBits = WinSaveBits(&m_savedBitsRect, &error);
    WinEraseRectangle(&rect, 0);
    WinDrawRectangleFrame(dialogFrame, &rect);
    WinDrawChars(line1, line1.GetLength(), line1Origin.x, line1Origin.y);
    WinDrawChars(line2, line2.GetLength(), line2Origin.x, line2Origin.y);
}
CMessageFrame::~CMessageFrame()
{
    if (m_savedBits)
    {
        WinRestoreBits(
            m_savedBits,
            m_savedBitsRect.topLeft.x,
            m_savedBitsRect.topLeft.y);
    }
}

-- Ben Combee, Senior Software Engineer, palmOne, Inc.
   "Combee on Palm OS" weblog: http://palmos.combee.net/
   Developer Forum Archives:   http://news.palmos.com/read/all_forums/
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