OK. A friend of mine made a program in class today and refuses to disclose the code to me.
Not I don't want to steal his design but he created a window which the mouse goes under. Is this an illusion or is his window above the curser?
He says it is stright winAPI.
I know DirectDraw can do this, but can winAPI?
I have no clue what he did. But I think its cool.
Any thoughts?
Last edited by Nor; 05-07-2002 at 10:12 PM.
I'm sure there are 100's of ways to do this. Here is a way I just came up with on the fly. I have no idea if this will actually work but I do not see why it would not. Check the mouse movement messages in your WinProc and look for WM_MOUSEMOVE, then get the x and y position. When it is inside of the rectangle that is the window simply call:
ShowCursor( FALSE );
and similarly when the cursors' coordinates are outside of the window call
ShowCursor( TRUE );
Look up these on MSDN if you have further issues about them. Hope this helps. Tell your buddy don't be stingey.
Could also use PtInRect() and MAKEPOINTS() on the mouse coods.Code:case WM_NCMOUSEMOVE://outside client area may need a call to TrackMouseEvent() ShowCursor(TRUE); break; case WM_MOUSEMOVE://in window ShowCursor(FALSE) break;
Try this to restrict the mouse to smaller and smaller areas inside the dialog
Needs error checking for the Rect (ie if left>right)Code:case WM_MOUSELEAVE: static RECT Rect; static UNIT uTimer=0; GetWindowRect(hWnd,&Rect); ClipCursor(&Rect); uTimer=SetTimer(hWnd, WM_USER+10001,20000,NULL); break; case WM_LBUTTONDOWN://each time clicked will reduce the area by 100x100 Rect.left+=50; Rect.top+=50; Rect.right-=50; Rect.bottom-=50; ReleaseCapture() ClipCursor(hWnd,&Rect); break; case WM_TIMER://will release the cursor after 20 sec if(wParam==uTimer) { ReleaseCapture(); KillTimer(hWnd,uTimer); } break;
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hmmm
maybe he just drawed a new cursor that is invisible
and the cursor takes effect only when the mouse is on the window
so you can think that it goes behind the window
You cannot put the mouse behind any window. The best you can do is to hide it, or change it to a map/mask with no pixmap.
It's purely an illusion.
he has no control over the depth of the mouse, that is handled by the desktop and windows managers.
