CSliderCtrl::SetThumbLength

Sets the length of the slider in the current trackbar control.

void SetThumbLength(
     int nLength
);

Parameters

Remarks

This method requires that the trackbar control be set to TBS_FIXEDLENGTH style.

This method sends the TBM_SETTHUMBLENGTH message, which is described in the Windows SDK.

Requirements

Header: afxcmn.h

Example

The following code example defines the variable, m_sliderCtrl, that is used to access the current trackbar control. The example also defines a variable, thumbLength, that is used to store the default length of the trackbar control's thumb component. These variables are used in the next example.

 // Variable to access the slider control.
    CSliderCtrl m_sliderCtrl;
    // Lenght of the slider control's thumb.
    int thumbLength;

The following code example sets the trackbar control's thumb component to twice its default length.

// Add extra initialization. 

    // Modify the size of the slider control's thumb. 
    // First, set the TBS_FIXEDLENGTH style.
    m_sliderCtrl.ModifyStyle( 0, TBS_FIXEDLENGTH );
    thumbLength = m_sliderCtrl.GetThumbLength();
    m_sliderCtrl.SetThumbLength( thumbLength * 2 );

    // End extra initialization.

See Also

Reference

CSliderCtrl Class

Hierarchy Chart

TBM_SETTHUMBLENGTH

CSliderCtrl::GetThumbLength