A Tool: Vertical Grid Plotter - script per MetaTrader 4

1. A Tool: Vertical Grid Plotter is MQL4 program set for equidistant vertical time lines plotting.

2. Program files:
   1.1. "AIS7VGP.MQ4" is vertical grid plotter file;
   1.2. "AIS7VGR.MQ4" is vertical grid remover file.

3. Copy program files in "../experts/scripts" folder.

4. Run MetaEditor and compile program files.

5. Run "AIS7VGP" to plot vertical grid lines.

6. Run "AIS7VGR" to delete vertical grid lines.

7. Input parameters:
   7.1. "aei.VGLeft"  defines left bound of the grid in 'yyyy.mm.dd hh:mm' format;
   7.2. "aei.VGStep"  defines distance between vertical time lines in minutes;
   7.3. "aei.VGRight" defines right bound of the grid in 'yyyy.mm.dd hh:mm' format;
   7.4. "aei.VGColor" defines color of the grid;
   7.5. "aei.VGStyle" defines style of the grid according to following code table:
        7.5.1. "0" is solid line code,
        7.5.2. "1" is dash line code,
        7.5.3. "2" is dot line code,
        7.5.4. "3" is dash-and-dot line code,
        7.5.5. "4" is dash-and-double-dot line code;
   7.6. "aei.VGBackground" defines background or foreground plotting:
        7.6.1. "0" is foreground plotting code,
        7.6.2. "1" is background plotting code.