SetPlayerMapIcon

From SA-MP Wiki

This function allows you to place your own icons on the map, enabling you to emphasise the locations of banks, airports or whatever else you want. A total of 63 icons are available in GTA: San Andreas, all of which can be used using this function. You can also specify the color of the icon, which allows you to change the white square icon (ID: 0)

Parameters:

(playerid, iconid, Float:x, Float:y, Float:z, markertype, color, style)

playerid

The ID of the player to set the map icon for.

iconid

The player's icon ID, ranging from 0 to 99, to be used in RemovePlayerMapIcon.

Float:x

The X coordinate of the place where you want the icon to be.

Float:y

The Y coordinate of the place where you want the icon to be.

Float:z

The Z coordinate of the place where you want the icon to be.

markertype

The icon to set.

color

The color of the icon, this should only be used with the square icon (ID: 0).

style

The style of icon.

Returns

This function returns 1 if it was successful, and 0 otherwise (e.g. the player isn't connected).

Note: If you use an invalid icon ID, it will create ID 1 (White Square)

Important Note: You can only have 100 mapicons!

public OnPlayerConnect( playerid )
{
    // This example demonstrates how to create a dollar-icon on top of a 24/7 located
    // in Las Venturas. This way new players know where to go with their money!
    SetPlayerMapIcon( playerid, 12, 2204.9468, 1986.2877, 16.7380, 52, 0, MAPICON_LOCAL );
}