Showing progress bar in a status bar pane

在工具卡显示进度条，原文链接：http://www.codeproject.com/Articles/35/Showing-progress-bar-in-a-status-bar-pane

1.构造函数

CProgressBar(); 
CProgressBar(LPCTSTR strMessage, int nSize=100, int MaxValue=100, BOOL bSmooth=FALSE, int nPane=0);
BOOL Create(LPCTSTR strMessage, int nSize=100, int MaxValue=100, BOOL bSmooth=FALSE, int nPane=0);

参数说明：

strMessage//bar字符串
nSize//占比
MaxValue//bar最大值（0~MaxValue）
bSmooth//是否平滑
nPane//状态栏第几子项

2.方法函数

BOOL Success()                      // Construction successful?

COLORREF SetBarColour(COLORREF clrBar);  // Set Bar colour, returns previous
COLORREF SetBkColour(COLORREF clrBar);   // Set background colour, returns previous

int  SetPos(int nPos);              // Same as CProgressCtrl
int  OffsetPos(int nPos);           // Same as CProgressCtrl
int  SetStep(int nStep);            // Same as CProgressCtrl
int  StepIt();                      // Same as CProgressCtrl
void Clear();                       // Clear the status bar
void SetRange(int nLower, int nUpper, int nStep = 1);
                                    // Set min, max and step size
void SetText(LPCTSTR strMessage);   // Set the message
void SetSize(int nSize);            // Set the bar size

3.应用

CProgressBar Bar("Testing", 40, 1000);

for (int i = 0;  i <  1000; i++)
{
    // perform operation
    Bar.StepIt();
}

或者

CProgressBar bar;

bar.Create("Processing", 40, 1000);
for (int i = 0; i < 1000; i++)
{
    //    perform operation
    bar.StepIt();
}
bar.SetText("Writing");
for  (int i = 0;  i <  1000; i++)
{
    // perform operation
    bar.StepIt();
    PeekAndPump();    // Message pump
}
bar.Clear();

PeekAndPump()函数的作用是进行，消息循环，使之进度条走时，可进行操作响应，如最大最小化等等

BOOL PeekAndPump()
{
    static MSG msg;

    while (::PeekMessage(&msg,NULL,0,0,PM_NOREMOVE)) {
        if (!AfxGetApp()->PumpMessage()) {
            ::PostQuitMessage(0);
            return FALSE;
        }    
    }

    return TRUE;
}

运行结果如下：

代码下载地址：http://download.csdn.net/detail/wuyuan2011woaini/9595419