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Don't interpret raw input messages with no mouse position 

This happens occasionally on touch devices when raw input is enabled
This commit is contained in:
Sam Lantinga 2020-04-07 09:18:19 -07:00
parent 0721931f5b
commit 488b94cb40
1 changed files with 1 additions and 1 deletions
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2
src/video/windows/SDL_windowsevents.c
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@ -609,7 +609,7 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
if ((rawmouse->usFlags & 0x01) == MOUSE_MOVE_RELATIVE) {
SDL_SendMouseMotion(data->window, 0, 1, (int)rawmouse->lLastX, (int)rawmouse->lLastY);
} else {
} else if (rawmouse->lLastX || rawmouse->lLastY) {
/* synthesize relative moves from the abs position */
static SDL_Point lastMousePoint;
SDL_bool virtual_desktop = (rawmouse->usFlags & MOUSE_VIRTUAL_DESKTOP) ? SDL_TRUE : SDL_FALSE;