monitor blank area of window for any change

[Gintaras]

In the dialog just capture a window or control and enter a name for a RECT variable. Click OK. It creates code like, this:
Macro Macro201

Code:

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RECT r
int w=win("Untitled - Notepad" "Notepad")
wait 0 -S "" w r 16

It also shows in the output pane how to set the variable. Combined code would be:
Macro Macro201

Code:

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RECT r
SetRect &r 50 50 100 100 ;;coordinates in the client area of the window
int w=win("Untitled - Notepad" "Notepad")
wait 0 -S "" w r 16

To define a rectangle area, edit the values in the SetRect line. They are coordinates of left, top, right and bottom. You can see mouse coordinates in the status bar of the Quick Macros window.