32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
# Assigning a character code to a label
|
||
|
||
As mentioned in the review of [Objects linked to time and price](/en/book/applications/objects/objects_time_price), the OBJ_ARROW label allows you to display an arbitrary Wingdings font symbol on the chart (the full list of available symbols is provided in the [MQL5 documentation](https://www.mql5.com/en/docs/constants/objectconstants/wingdings)). The character code for the object itself is determined by the integer property OBJPROP_ARROWCODE.
|
||
|
||
Script allows to demonstrate all characters of the ObjectWingdings.mq5 font. In it, we create labels with different characters in a loop, placing them one by one on the bar.
|
||
|
||
```
|
||
#include "ObjectPrefix.mqh"
|
||
|
||
void OnStart()
|
||
{
|
||
for(int i = 33; i < 256; ++i) // character codes
|
||
{
|
||
const int b = i - 33; // bar number
|
||
const string name = ObjNamePrefix + "Wingdings-"
|
||
+ (string)iTime(_Symbol, _Period, b);
|
||
ObjectCreate(0, name, OBJ_ARROW,
|
||
0, iTime(_Symbol, _Period, b), iOpen(_Symbol, _Period, b));
|
||
ObjectSetInteger(0, name, OBJPROP_ARROWCODE, i);
|
||
}
|
||
|
||
PrintFormat("%d objects with arrows created", 256 - 33);
|
||
}
|
||
|
||
```
|
||
|
||
How it looks on the chart is shown in the following screenshot.
|
||
|
||
|
||
|
||
Wingdings characters in OBJ_ARROW labels
|