Created
October 3, 2012 21:23
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a function to convert client-area-relative cooordinates to window-relative coordinates
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| ClientToWindow(hwnd, byRef x, byRef y) | |
| { | |
| VarSetCapacity(pt, 8, 0) | |
| , NumPut(x, pt, 0, "UInt") | |
| , NumPut(y, pt, 4, "UInt") | |
| if (!DllCall("ClientToScreen", "Ptr", hwnd, "Ptr", &pt, "UInt")) | |
| return false | |
| VarSetCapacity(rc, 16, 0) | |
| if (!DllCall("GetWindowRect", "Ptr", hwnd, "Ptr", &rc, "UInt")) | |
| return false | |
| screen_x := NumGet(pt, 0, "UInt") | |
| , screen_y := NumGet(pt, 4, "UInt") | |
| win_x := NumGet(rc, 0, "UInt") | |
| , win_y := NumGet(rc, 4, "UInt") | |
| x := screen_x - win_x | |
| , y := screen_y - win_y | |
| return true | |
| } |
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