From 19fba61d46a6e54d0a85a88f36bd150ec3df97b4 Mon Sep 17 00:00:00 2001 From: Christopher Peerman Date: Mon, 14 Jan 2019 12:15:59 +0100 Subject: Fix T55589: drawing strokes with Microsoft surface pen misses first part. This disables touch gesture recognition in Blender, avoiding any initial delay when drawing with grease pencil, texture paint, etc. Differential Revision: https://developer.blender.org/D4203 --- intern/ghost/intern/GHOST_WindowWin32.cpp | 26 ++++++++++++++++++++++---- intern/ghost/intern/GHOST_WindowWin32.h | 3 +++ 2 files changed, 25 insertions(+), 4 deletions(-) (limited to 'intern') diff --git a/intern/ghost/intern/GHOST_WindowWin32.cpp b/intern/ghost/intern/GHOST_WindowWin32.cpp index 983fffc10e6..17dbc858e01 100644 --- a/intern/ghost/intern/GHOST_WindowWin32.cpp +++ b/intern/ghost/intern/GHOST_WindowWin32.cpp @@ -190,7 +190,24 @@ GHOST_WindowWin32::GHOST_WindowWin32(GHOST_SystemWin32 *system, 0); // pointer to window-creation data free(title_16); } + + m_user32 = ::LoadLibrary("user32.dll"); + if (m_hWnd) { + if (m_user32) { + // Touch enabled screens with pen support by default have gestures + // enabled, which results in a delay between the pointer down event + // and the first move when using the stylus. RegisterTouchWindow + // disables the new gesture architecture enabling the events to be + // sent immediately to the application rather than being absorbed by + // the gesture API. + GHOST_WIN32_RegisterTouchWindow pRegisterTouchWindow = + (GHOST_WIN32_RegisterTouchWindow)GetProcAddress(m_user32, "RegisterTouchWindow"); + if (pRegisterTouchWindow) { + pRegisterTouchWindow(m_hWnd, 0); + } + } + // Register this window as a droptarget. Requires m_hWnd to be valid. // Note that OleInitialize(0) has to be called prior to this. Done in GHOST_SystemWin32. m_dropTarget = new GHOST_DropTargetWin32(this, m_system); @@ -368,6 +385,11 @@ GHOST_WindowWin32::~GHOST_WindowWin32() ::DestroyWindow(m_hWnd); m_hWnd = 0; } + + if (m_user32) { + FreeLibrary(m_user32); + m_user32 = NULL; + } } bool GHOST_WindowWin32::getValid() const @@ -998,10 +1020,6 @@ void GHOST_WindowWin32::bringTabletContextToFront() GHOST_TUns16 GHOST_WindowWin32::getDPIHint() { - if (!m_user32) { - m_user32 = ::LoadLibrary("user32.dll"); - } - if (m_user32) { GHOST_WIN32_GetDpiForWindow fpGetDpiForWindow = (GHOST_WIN32_GetDpiForWindow) ::GetProcAddress(m_user32, "GetDpiForWindow"); diff --git a/intern/ghost/intern/GHOST_WindowWin32.h b/intern/ghost/intern/GHOST_WindowWin32.h index 8b0ba2f1934..9d6a1b667d6 100644 --- a/intern/ghost/intern/GHOST_WindowWin32.h +++ b/intern/ghost/intern/GHOST_WindowWin32.h @@ -59,6 +59,9 @@ typedef BOOL (API * GHOST_WIN32_WTPacket)(HCTX, UINT, LPVOID); typedef BOOL (API * GHOST_WIN32_WTEnable)(HCTX, BOOL); typedef BOOL (API * GHOST_WIN32_WTOverlap)(HCTX, BOOL); +// typedef to user32 functions to disable gestures on windows +typedef BOOL(API * GHOST_WIN32_RegisterTouchWindow)(HWND hwnd, ULONG ulFlags); + // typedefs for user32 functions to allow dynamic loading of Windows 10 DPI scaling functions typedef UINT(API * GHOST_WIN32_GetDpiForWindow)(HWND); #ifndef USER_DEFAULT_SCREEN_DPI -- cgit v1.2.3