Effect of the current

Expect effect

CodePudding user response:

Put a translucent window on it,

Or using GDIplus

CodePudding user response:

People, oneself the top, please

CodePudding user response:

People, oneself the top, please

CodePudding user response:

Obtaining coordinates, and then draw lines?

CodePudding user response:

1 floor positive solution, shown above in the table map connection.

Or, you can choose to use the line object to connect to each cell, (this haven't tested, it will show you don't know whether controls in the table below, if you can't lead not)