src/video/win32/SDL_win32window.c
changeset 2710 44e49d3fa6cf
parent 1956 ba0d62354872
child 2713 0906692aa6a4
--- a/src/video/win32/SDL_win32window.c	Mon Aug 25 05:30:28 2008 +0000
+++ b/src/video/win32/SDL_win32window.c	Mon Aug 25 06:33:00 2008 +0000
@@ -19,6 +19,14 @@
     Sam Lantinga
     slouken@libsdl.org
 */
+
+/* we need to define it, so that raw input is included */
+
+#if (_WIN32_WINNT < 0x0501)
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0501
+#endif
+
 #include "SDL_config.h"
 
 #include "../SDL_sysvideo.h"
@@ -29,6 +37,15 @@
 /* This is included after SDL_win32video.h, which includes windows.h */
 #include "SDL_syswm.h"
 
+#include <wintab.h>
+
+/* we're telling wintab that we want to receive movement, button events and pressure information in packets */
+#define PACKETDATA ( PK_X | PK_Y | PK_BUTTONS | PK_NORMAL_PRESSURE | PK_CURSOR)
+#define PACKETMODE 0
+#include <pktdef.h>
+
+extern HCTX *g_hCtx;            /* the table of tablet event contexts, each windows has to have it's own tablet context */
+int highestId = 0;              /* the highest id of the tablet context */
 
 static int
 SetupWindowData(_THIS, SDL_Window * window, HWND hwnd, SDL_bool created)
@@ -132,6 +149,9 @@
 int
 WIN_CreateWindow(_THIS, SDL_Window * window)
 {
+    RAWINPUTDEVICE Rid;
+    AXIS TabX, TabY;
+    LOGCONTEXT lc;
     HWND hwnd;
     HWND top;
     RECT rect;
@@ -180,13 +200,53 @@
     hwnd =
         CreateWindow(SDL_Appname, TEXT(""), style, x, y, w, h, NULL, NULL,
                      SDL_Instance, NULL);
-    WIN_PumpEvents(_this);
-
     if (!hwnd) {
         WIN_SetError("Couldn't create window");
         return -1;
     }
 
+    /* we're configuring the tablet data. See Wintab reference for more info */
+    if (WTInfo(WTI_DEFSYSCTX, 0, &lc) != 0) {
+        lc.lcPktData = PACKETDATA;
+        lc.lcPktMode = PACKETMODE;
+        lc.lcOptions |= CXO_MESSAGES;
+        lc.lcOptions |= CXO_SYSTEM;
+        lc.lcMoveMask = PACKETDATA;
+        lc.lcBtnDnMask = lc.lcBtnUpMask = PACKETDATA;
+        WTInfo(WTI_DEVICES, DVC_X, &TabX);
+        WTInfo(WTI_DEVICES, DVC_Y, &TabY);
+        lc.lcInOrgX = 0;
+        lc.lcInOrgY = 0;
+        lc.lcInExtX = TabX.axMax;
+        lc.lcInExtY = TabY.axMax;
+        lc.lcOutOrgX = 0;
+        lc.lcOutOrgY = 0;
+        lc.lcOutExtX = GetSystemMetrics(SM_CXSCREEN);
+        lc.lcOutExtY = -GetSystemMetrics(SM_CYSCREEN);
+        if (window->id > highestId) {
+            HCTX *tmp_hctx;
+            highestId = window->id;
+            tmp_hctx =
+                (HCTX *) SDL_realloc(g_hCtx, (highestId + 1) * sizeof(HCTX));
+            if (!tmp_hctx) {
+                SDL_OutOfMemory();
+                DestroyWindow(hwnd);
+                return -1;
+            }
+            g_hCtx = tmp_hctx;
+        }
+        g_hCtx[window->id] = WTOpen(hwnd, &lc, TRUE);
+    }
+
+    /* we're telling the window, we want it to report raw input events from mice */
+    Rid.usUsagePage = 0x01;
+    Rid.usUsage = 0x02;
+    Rid.dwFlags = RIDEV_INPUTSINK;
+    Rid.hwndTarget = hwnd;
+    RegisterRawInputDevices(&Rid, 1, sizeof(Rid));
+
+    WIN_PumpEvents(_this);
+
     if (SetupWindowData(_this, window, hwnd, SDL_TRUE) < 0) {
         DestroyWindow(hwnd);
         return -1;
@@ -389,6 +449,7 @@
 #endif
         ReleaseDC(data->hwnd, data->hdc);
         if (data->created) {
+            WTClose(g_hCtx[window->id]);
             DestroyWindow(data->hwnd);
         }
         SDL_free(data);