CStatic-Derived Digital Counter - WITHOUT BITMAPS

.

Description

CStaticCounter is a CStatic derived control that displays a LED style counter - without using bitmap resources
  • No bitmap resources are needed
  • Digits' height width and 'weight' are proportional to the size of the control
  • Uses memory compatible DC to produce flicker-free display

Functions


void SetColorBackGround(COLORREF crColor)
[Optional] Default colours are as shown in above screenshot

void SetColorForeGround(COLORREF crColor)
[Optional] Default colours are as shown in above screenshot

void SetDrawFaded(bool bState)
[Optional] While the "DrawFaded" state is true, the "LED notches" that are not 'lit' are drawn at a third the intensity of the foreground colour

void Display(int nNumber)
Use this to update & display the number of your choice.

How to Implement

  • Add the StaticCounter.h and StaticCounter.cpp to your project
  • Add a normal static control to your dialog box and assign a unique ID, e.g. IDC_STATIC_COUNTER
  • Use classwizard to create a control member variable - say, m_staticCounter
  • In your dialog class' header file, change the "CStatic m_staticCounter" to "CStaticCounter m_staticCounter"
  • Include the header (StaticCounter.h) in your dialog class' header & implementation files
  • Call the Display() function to change the number displayed.

Downloads

Download Sample Executable - 67 Kb
Download demo project - 19 Kb
Download source - 4 Kb


Comments

  • CStaticCounter UPDATE

    Posted by Legacy on 01/19/2000 12:00am

    Originally posted by: Jason Hattingh

    http://www.codeproject.com/staticctrl/StaticCounter.asp

    Reply
  • Thoughts and Minor correction ?

    Posted by Legacy on 08/10/1999 12:00am

    Originally posted by: Rob Wainwright

    I like classes like this, its purpose is clear and is well written. Had a thought about the extension needed to support non numerical values but that is a major change (I think)

    I think The SetColorForeground function needs to delete the brush and recreate it (i.e. in the same manner as the SetColorBackground does).

    There is also an unused member variable, namely m_crColorDimForeground

    Reply
  • "Draw" function eats GDI resources.....

    Posted by Legacy on 07/29/1999 12:00am

    Originally posted by: Per Praem

    The code for CStaticCounter::Draw(CMemDC* pDC, DWORD dwChar, int nCol)needs a minor modification to prevent it
    
    from eating up the GDI resources:

    Replace the line:

    pDC->SelectObject(&pen);

    with

    CPen* pOldPen=pDC->SelectObject(&pen);

    and add the following line

    pDC->SelectObject(pOldPen);

    as a new last line in the Draw function.

    Now the CStaticCounter can run forever without having
    the system to die because it runs out of free GDI resources.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: December 11, 2014 @ 1:00 p.m. ET / 10:00 a.m. PT Market pressures to move more quickly and develop innovative applications are forcing organizations to rethink how they develop and release applications. The combination of public clouds and physical back-end infrastructures are a means to get applications out faster. However, these hybrid solutions complicate DevOps adoption, with application delivery pipelines that span across complex hybrid cloud and non-cloud environments. Check out this …

  • On-demand Event Event Date: October 29, 2014 It's well understood how critical version control is for code. However, its importance to DevOps isn't always recognized. The 2014 DevOps Survey of Practice shows that one of the key predictors of DevOps success is putting all production environment artifacts into version control. In this webcast, Gene Kim discusses these survey findings and shares woeful tales of artifact management gone wrong! Gene also shares examples of how high-performing DevOps …

Most Popular Programming Stories

More for Developers

RSS Feeds