SetDouble
SetDouble
Provides simplified access to the functions of API MQL5 ObjectSetDouble() to change double properties (of float and double types) of a graphical object bound to a class instance. There are two versions of a function call:
Setting a property value that does not require a modifier
bool SetDouble(
ENUM_OBJECT_PROPERTY_DOUBLE prop_id, // double property ID
double value // value
)Parameters
- prop_id
[in] ID of a graphical object double property.
- value
[in] New value of a changed double property.
Setting a property value indicating the modifier
bool SetDouble(
ENUM_OBJECT_PROPERTY_DOUBLE prop_id, // double property ID
int modifier, // modifier
double value // value
)Parameters
- prop_id
[in] ID of a graphical object double property.
- modifier
[in] Modifier (index) of a double property.
- value
[in] New value of a changed double property.
Return Value
true - success, false - cannot change the double feature.
Example:
//--- example for CChartObject::SetDouble
#include <ChartObjects\ChartObject.mqh>
//---
void OnStart()
{
CChartObject object;
//---
for(int i=0;i<object.LevelsCount();i++)
{
//--- set level value of chart object
if(!object.SetDouble(OBJPROP_LEVELVALUE,i,0.1*i))
{
printf("Set double property error %d",GetLastError());
return;
}
}
}Last updated on