hmRep_SET MOUSE LIMITS ( Area ; limit_h ; limit_left ; limit_right ; limit_v ; limit_top ; limit_bottom)

Introduced in v4, Preemptive: yes

Parameter	Type	In/Out	Description
Area	Longint	→	hmReports area
limit_h	Longint	→	Horizontal limit
limit_left	Real	→	Minimum left
limit_right	Real	→	Maximum right
limit_v	Longint	→	Vertical limit
limit_top	Real	→	Minimum top
limit_bottom	Real	→	Maximum bottom

Description

The command hmRep_SET MOUSE LIMITS sets mouse movement limits for the current drag action. You have to call this command in the callback event hmRep_OnBeforeDrag only.

Passing 1 in limit_h activates horizontal limitation. The parameters limit_left and limit_right defining the minimal and maximum movement in pixels starting with coordinates 0;0. Passing 0;0 as min/max does not allow the user to move the cursor horizontally. Using ‘‘-10;10’’ allows the user to move the cursor 10 pixels left and 10 pixels right from the beginning of the drag action.

Same for vertical.

Example

The following example allows the user horizontal movement only:

hmRep_SET MOUSE LIMITS($vl_area; 0; 0; 0; 1; 0; 0)

The following example allows the user vertical movement only:

hmRep_SET MOUSE LIMITS($vl_area; 1; 0; 0; 0; 0; 0)