Cursor handling

Correct mouse position

MODIFYMOUSE

Compensate for X,Y mouse coordinates when the window is moved or resized. It should be typically set for most games.

Position message processing

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Force cursor clipping

CLIPCURSOR

Set hardware cursor clipping within the window's region. This greatly improves the game's playability in some cases (namely, the Dungeon Keeper series).

Keep cursor within window

KEEPCURSORWITHIN

Avoid moving the cursor outside the window area. This was used as a “Cursor OFF” directive in some games.

Keep cursor fixed

KEEPCURSORFIXED

Inhibits the SetCursorPos() API. In some cases, it affects the program's behavior (e.g. the game Necrodrome).

Intercept GDI cursor clipping

ENABLECLIPPING

Disables GDI clipping, avoiding unpleasant effects such as preventing the mouse from moving within the whole window.

Fix WM_NCHITTEST

FIXNCHITTEST

Fixes the WM_NCHITTEST message X,Y coordinates. When the window's border behaves strangely, set this flag to correct the position of the mouse cursor.

Slow down mouse polling

SLOW

Some old programs have this bad habit of continuously looping through the mouse status polling with no delay, hogging 100% of CPU resources. This flag introduces a minimal and unnoticeable delay between mouse polls, saving CPU resources.

Release mouse outside window

RELEASEMOUSE

Normally, when the mouse is placed outside the window and the window keeps receiving mouse messages, the mouse cursor is placed on the corresponding window border and the program performs video scrolling or so forth. There are some cases in which you don't want this to happen: for instance, when you want to alternate between two programs, such as a game and a keyboard simulator. Checking this flag causes DxWnd to detect the "mouse outside window" condition, and in this case it places the cursor right in the middle of the screen, where it is supposed to cause no harm.

Enable virtual joystick

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