Trap the mouse pointer...
BlitzMax Forums/BlitzMax Beginners Area/Trap the mouse pointer...
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| Hello, I would like to ask how is it possible to trap my mouse pointer in one square area. I tried to store the mousex() and mousey() variables in 4 separated variables like: Global pointer_x:Int Global pointer_y:Int Global pointer_w:Int Global pointer_h:Int pointer_x=mousex() pointer_y=mousey() pointer_w=mouse_x+200 pointer_h=mouse_y+100 If pointer_x<10 then pointer_x=10 If pointer_x>pointer_w then pointer_x=pointer_w if pointer_y<10 then pointer_y=10 if pointer_y>pointer_h then pointer_y=pointer_h DrawImage pointer, pointer_x, pointer_y,0 But it doesn't work the pointer moves in whole screen. Is there any other command which will move the mouse in some position? Thank you :) |
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| I think I made it with mousemove(x,y) function :) |
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Just hacked this out of something I wrote that did exactly that. Should be easy enough to use. I don't try and force the mouse pointer to move but just use my own image and use the HideMouse command in the code.XMouse = MouseX() ; YMouse = MouseY() If YMouse > 450 YMouse = 450 EndIf If YMouse < 100 YMouse = 100 End If If XMouse > 650 XMouse = 650 EndIf If XMouse < 1 XMouse = 1 End If DrawImage PlayerImage, XMouse, YMouse |
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| Thank you , I made it with mousemove() I would like to change the mouse position when the pointer reach these limits. |
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| MoveMouse() moves the mouse for the whole OS ... Xerra's suggestion is some kind of "virtual" mouse trap. So with MoveMouse() you will not be able to get out of your windowed application. This is useful if you eg. have your mouse used for "aiming" in a 3D World - or when doing "hold mouse down to scroll" (drag n scroll - like swiping). But if you just want your mouse to be in a specific area of your app (logic wise) you could use Xerra's approach. But of course you should take into differences into consideration - for now the XMouse and YMouse will stay at their max a long time if you moved the mouse far to the right or bottom. Differences means to store the difference between "limit" and current position to subtract them accordingly if you move your mouse slowly back (relative position versus absolute position). bye Ron |
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| MoveMouse causes a secondary mouse movement event. If you're enacting that rectangular constraint when you catch a mouse movement event (by using WaitEvent or event hooks), it'll lead to an infinite cycle (you will move the mouse, then process the move event, then move the mouse etc.). In this case, in the function that processes your mouse movement event you need a boolean flag that you toggle at every call. Then only do anything in that function if the flag is True. |
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