iidx: workaround for touch monitors that report contact area (#462)

muskit/spice2x.github.io

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## Link to GitHub Issue, if one exists
n/a

## Description of change
When touch monitors send touch area size information
(`TOUCHEVENTFMASK_CONTACTAREA` flag and `cxContact` / `cyContact` fields
of `TOUCHINPUT` struct) from `GetTouchInputInfo`, IIDX gets confused and
does some unexpected things when interacting with the subscreen.

As a workaround, hook `GetTouchInputInfo` and clear out the flag &
values.

This is only done for IIDX AND when -iidxnativetouch is on.

## Testing
Tested on a Dell touch monitor, simulating "bad" values.

This commit is contained in:

bicarus-dev

2025-12-18 15:19:09 -08:00

committed by

GitHub

parent f113eb4f52

commit a09905792d

4 changed files with 102 additions and 1 deletions

									
										src/spice2x/misc/nativetouchhook.h
									
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				#include <windows.h>

				namespace nativetouchhook {

				    void hook(HMODULE module);

				}