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Don't compare raw mouse button state with windows message button state

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When mouse buttons are swapped, right mouse button down is the same value as raw mouse button up, and conceptually the two systems use different button masks, so never cache state between the two.

Fixes https://github.com/libsdl-org/SDL/issues/5108
This commit is contained in:
Sam Lantinga 2021-12-16 12:01:18 -08:00
parent 3d5fcb5da6
commit ca18bf11ee
1 changed files with 3 additions and 0 deletions
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src/video/windows/SDL_windowsevents.c
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@ -306,6 +306,9 @@ WIN_CheckWParamMouseButtons(WPARAM wParam, SDL_WindowData *data, SDL_MouseID mou
static void
WIN_CheckRawMouseButtons(ULONG rawButtons, SDL_WindowData *data, SDL_MouseID mouseID)
{
// Add a flag to distinguish raw mouse buttons from wParam above
rawButtons |= 0x8000000;
if (rawButtons != data->mouse_button_flags) {
Uint32 mouseFlags = SDL_GetMouseState(NULL, NULL);
SDL_bool swapButtons = GetSystemMetrics(SM_SWAPBUTTON) != 0;