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Win32: Fix issue with SetCapture & negative values.

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This fixes an issue where we were using the wrong macros to extract the position from WM_MOUSEMOVE, so negative values were behaving incorrectly.
These would be generated in multimon situations, or if you use SetCapture.

Fixes http://bugzilla.libsdl.org/show_bug.cgi?id=1175
This commit is contained in:
Jørgen P. Tjernø 2013-06-05 12:00:18 -07:00
parent c6dd828f1e
commit df3b1a6ed1
1 changed files with 3 additions and 1 deletions
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4
src/video/windows/SDL_windowsevents.c
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@ -33,6 +33,8 @@
/* Dropfile support */
#include <shellapi.h>
/* For GET_X_LPARAM, GET_Y_LPARAM. */
#include <windowsx.h>
/*#define WMMSG_DEBUG*/
#ifdef WMMSG_DEBUG
@ -381,7 +383,7 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
case WM_MOUSEMOVE:
if( !SDL_GetMouse()->relative_mode )
SDL_SendMouseMotion(data->window, 0, 0, LOWORD(lParam), HIWORD(lParam));
SDL_SendMouseMotion(data->window, 0, 0, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
/* don't break here, fall through to check the wParam like the button presses */
case WM_LBUTTONUP:
case WM_RBUTTONUP: