Valuators::Scrool

This method update the value of "Cur_Value" to reflect a mouse wheel scroll.

Syntax

float Scroll(

int val

) ;

Parameters

val

Number of scroll click.

Return value

return the new value of the Cur_Value variable.

Remarks

The value of "Cur_Value" variable is updated automatically, but not the graphics. You need to call "Adjust" for the graphic to reflect the new value.

The variable Cur_Value will be incremented by "count * Inc" if the variable Inc is not null, otherwise the variable will be increment by 1/50 the range Max_Value-Min_Value for each count.

Requirements

Header:

TomoVision_Util.hpp

TomoVision_Tools.hpp

Library:

TomoVision_Util.lib

TomoVision_Tools.lib

Example

static Valuators demo ;

extern "C" __declspec(dllexport) int Ctrl_Scroll( HWND wnd, int count, short x, short y )

{

// ------------------------------------------------

if ( demo.Select( KEY_QUERY ) ) {

demo.Scroll( -count ) ;

return( 1 ) ;

}

return( 0 ) ;

}