Read input when window is not active?
BlitzPlus Forums/BlitzPlus Programming/Read input when window is not active?
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| Is there any way to check for a hotkey combination while a blitz plus window is not active? I want to make a screen shot program that will take a shot of a specific area of the screen the user picks with the mouse. But I want the window to be minimized, or maybe in the system tray so the user won't have to deal with it. So it would have check for a key combination, then let the user drag a rectangle over what he wants to take a shot of all while minimized. I can probably fake the last part by snapshotting the whole desktop, blowing up a fullscreen window, drawing the desktop and letting the user pick on the fake screen. The hard part is how does a minimized application check for a hotkey or mouse button click (middle mouse for screen shot would be useful for taking a lot of snapshots)? I know windows programs can do this, I have another program called screenseize that does this but it's kind of flakey. I'd rather make my own to streamline my screen grabbing, which I do a lot of! |
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I first tried Blitz+'s HotKeyEvent command, but it wouldn't work once the app was minimized. I came up with an userlib solution that will work, I just don't know about using a combination of keys with it. I'm pretty sure modifiers can be detected with this function, so search around and hopefully you can find a solution
; Required Userlib
; .lib "user32.dll"
; GetAsyncKeyState%(vKey%)
win = CreateWindow("Minimize me and hit F10", 100, 100, 250, 100, 0, 1 + 2)
AutoSuspend 0
CreateTimer 60
Repeat
Select WaitEvent()
Case $803: Exit
Case $4001
; Uncomment to determine a hotkey code
;For i = 0 To 255
; ret% = GetAsyncKeyState(i)
; If ret% Then RuntimeError "Hotkey code is " + Str(i)
;Next
If GetAsyncKeyState(121) Then RuntimeError "Hotkey detected" ; F10 Hotkey
Delay 5
End Select
Forever
Oh, and I almost forgot to mention this does not capture the key, other apps will still receive it after you're done with it. |
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| Eikon, is there any question I have that you can't answer? :) |
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| Probably. Just keep off the fun technical stuff and you'll be OK. I'll take that as a success, my stalking is done ;) |
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