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[Win] Only set MouseCursor in client area

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This is required according to the windows documentation.
This commit is contained in:
thefiddler 2014-05-01 16:49:23 +02:00
parent 9988a2ba9c
commit 9ee728d4fc
1 changed files with 15 additions and 8 deletions
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23
Source/OpenTK/Platform/Windows/WinGLNative.cs
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@ -102,7 +102,7 @@ namespace OpenTK.Platform.Windows
KeyPressEventArgs key_press = new KeyPressEventArgs((char)0);
MouseCursor cursor = MouseCursor.Default;
IntPtr curson_handle = IntPtr.Zero;
IntPtr cursor_handle = Functions.LoadCursor(CursorName.Arrow);
int cursor_visible_count = 0;
static readonly object SyncRoot = new object();
@ -392,8 +392,14 @@ namespace OpenTK.Platform.Windows
{
if (cursor != MouseCursor.Default)
{
Functions.SetCursor(curson_handle);
return new IntPtr(1);
// Only set the mouse cursor inside the client rectangle
// See MSDN "Setting the Cursor Image"
const int ht_client = 1;
if ((lParam.ToInt64() & 0xffff) == ht_client)
{
Functions.SetCursor(cursor_handle);
return new IntPtr(1);
}
}
return null;
@ -1208,7 +1214,8 @@ namespace OpenTK.Platform.Windows
if (value == MouseCursor.Default)
{
oldCursor = Functions.SetCursor(Functions.LoadCursor(CursorName.Arrow));
cursor_handle = Functions.LoadCursor(CursorName.Arrow);
oldCursor = Functions.SetCursor(cursor_handle);
cursor = value;
}
else
@ -1245,7 +1252,7 @@ namespace OpenTK.Platform.Windows
// Currently using a custom cursor so destroy it
// once replaced
cursor = value;
curson_handle = icon;
cursor_handle = icon;
oldCursor = Functions.SetCursor(icon);
}
}
@ -1639,10 +1646,10 @@ namespace OpenTK.Platform.Windows
{
if (calledManually)
{
if (Cursor != MouseCursor.Default && curson_handle != IntPtr.Zero)
if (Cursor != MouseCursor.Default && cursor_handle != IntPtr.Zero)
{
Functions.DestroyIcon(curson_handle);
curson_handle = IntPtr.Zero;
Functions.DestroyIcon(cursor_handle);
cursor_handle = IntPtr.Zero;
}
// Safe to clean managed resources