left mouse button condition

[Natter]

How can you determine that the left mouse button is pressed (function MLeftDown always returns .F.) ?

[Antonio Linares]

oControl:bLClicked := { | nRow, nCol, nFlags | MsgInfo( "left mouse pressed" ) }

or oWnd or oDlg instead of oControl

[Natter]

bRClicked - handles the event of pressing the left mouse button. But I'm interested in the status of this button when you move the mouse cursor across several controls.
Each of these controls has its bMMoved in which the function is called. If left mouse button pressed, the function is executed

[Antonio Linares]

Then you have to use Windows function GetAsyncKeyState():

https://msdn.microsoft.com/en-us/library/windows/desktop/ms646293(v=vs.85).aspx

[Natter]

Thanks, Antonio !