X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0c03f52d02470366a1b1370d918fa5779997e7f0..ad653fa23069c5d9378247084f03c9a718c3ad62:/src/msw/uiaction.cpp?ds=sidebyside

diff --git a/src/msw/uiaction.cpp b/src/msw/uiaction.cpp
index eb5bfd1e34..bc5bde1ad1 100644
--- a/src/msw/uiaction.cpp
+++ b/src/msw/uiaction.cpp
@@ -15,11 +15,17 @@
 
 #if wxUSE_UIACTIONSIMULATOR
 
+#ifndef WX_PRECOMP
+    #include "wx/msw/private.h"             // For wxGetCursorPosMSW()
+#endif
+
 #include "wx/uiaction.h"
 #include "wx/msw/wrapwin.h"
 
 #include "wx/msw/private/keyboard.h"
 
+#include "wx/math.h"
+
 namespace
 {
 
@@ -47,7 +53,7 @@ DWORD EventTypeForMouseButton(int button, bool isDown)
 bool wxUIActionSimulator::MouseDown(int button)
 {
     POINT p;
-    GetCursorPos(&p);
+    wxGetCursorPosMSW(&p);
     mouse_event(EventTypeForMouseButton(button, true), p.x, p.y, 0, 0);
     return true;
 }
@@ -56,18 +62,22 @@ bool wxUIActionSimulator::MouseMove(long x, long y)
 {
     // Because MOUSEEVENTF_ABSOLUTE takes measurements scaled between 0 & 65535
     // we need to scale our input too
-    int displayx, displayy, scaledx, scaledy;
+    int displayx, displayy;
     wxDisplaySize(&displayx, &displayy);
-    scaledx = ((float)x / displayx) * 65535;
-    scaledy = ((float)y / displayy) * 65535;
+
+    // Casts are safe because x and y are supposed to be less than the display
+    // size, so there is no danger of overflow.
+    DWORD scaledx = static_cast<DWORD>(ceil(x * 65535.0 / (displayx-1)));
+    DWORD scaledy = static_cast<DWORD>(ceil(y * 65535.0 / (displayy-1)));
     mouse_event(MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE, scaledx, scaledy, 0, 0);
+
     return true;
 }
 
 bool wxUIActionSimulator::MouseUp(int button)
 {
     POINT p;
-    GetCursorPos(&p);
+    wxGetCursorPosMSW(&p);
     mouse_event(EventTypeForMouseButton(button, false), p.x, p.y, 0, 0);
     return true;
 }