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Windows: Fix when running in VirtualBox with mouse integration, the game did not respond to cursor movement at all (Thanks LeoKids)

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UnknownShadow200 2022-06-30 23:42:24 +10:00
parent c5298b508c
commit 57504bf22e
1 changed files with 15 additions and 7 deletions
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22
src/Window_Win.c
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@ -181,23 +181,31 @@ static LRESULT CALLBACK Window_Procedure(HWND handle, UINT message, WPARAM wPara
case WM_INPUT:
{
RAWINPUT raw;
int dx, dy, width, height, absX, absY, isVirtual;
UINT ret, rawSize = sizeof(RAWINPUT);
int dx, dy;
RAWINPUT raw;
ret = _GetRawInputData((HRAWINPUT)lParam, RID_INPUT, &raw, &rawSize, sizeof(RAWINPUTHEADER));
if (ret == -1 || raw.header.dwType != RIM_TYPEMOUSE) break;
if (raw.data.mouse.usFlags == MOUSE_MOVE_RELATIVE) {
/* Majority of mouse input devices provide relative coordinates */
dx = raw.data.mouse.lLastX;
dy = raw.data.mouse.lLastY;
} else if (raw.data.mouse.usFlags == MOUSE_MOVE_ABSOLUTE) {
} else if (raw.data.mouse.usFlags & MOUSE_MOVE_ABSOLUTE) {
/* This mouse mode is produced by VirtualBox with Mouse Integration on */
/* To understand reasoning behind the following code, see Remarks in */
/* https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-rawmouse */
static int prevPosX, prevPosY;
dx = raw.data.mouse.lLastX - prevPosX;
dy = raw.data.mouse.lLastY - prevPosY;
isVirtual = (raw.data.mouse.usFlags & MOUSE_VIRTUAL_DESKTOP);
prevPosX = raw.data.mouse.lLastX;
prevPosY = raw.data.mouse.lLastY;
width = GetSystemMetrics(isVirtual ? SM_CXVIRTUALSCREEN : SM_CXSCREEN);
height = GetSystemMetrics(isVirtual ? SM_CYVIRTUALSCREEN : SM_CYSCREEN);
absX = (int)((raw.data.mouse.lLastX / 65535.0f) * width);
absY = (int)((raw.data.mouse.lLastY / 65535.0f) * height);
dx = absX - prevPosX; prevPosX = absX;
dy = absY - prevPosY; prevPosY = absY;
} else { break; }
if (Input_RawMode) Event_RaiseRawMove(&PointerEvents.RawMoved, (float)dx, (float)dy);