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Win32: Disable mouse trails for full screen 

When mouse trails are enabled, the cursor becomes invisible when the
OpenGL ICD detects a full screen window and switches to page flipping.

Mouse trails are now disabled as long as any full screen windows are
visible.

Fixes #1263.
This commit is contained in:
Camilla Löwy 2018-08-02 00:01:26 +02:00
parent 0be4f3f75a
commit f82a8f09eb
2 changed files with 21 additions and 0 deletions
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4
src/win32_platform.h
View File

@ -142,6 +142,9 @@ typedef enum
// HACK: Define versionhelpers.h functions manually as MinGW lacks the header
BOOL IsWindowsVersionOrGreater(WORD major, WORD minor, WORD sp);
#define IsWindowsXPOrGreater() \
IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WINXP), \
LOBYTE(_WIN32_WINNT_WINXP), 0)
#define IsWindowsVistaOrGreater() \
IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_VISTA), \
LOBYTE(_WIN32_WINNT_VISTA), 0)
@ -300,6 +303,7 @@ typedef struct _GLFWlibraryWin32
_GLFWwindow* disabledCursorWindow;
RAWINPUT* rawInput;
int rawInputSize;
UINT mouseTrailSize;
struct {
HINSTANCE instance;

17
src/win32_window.c
View File

@ -529,7 +529,18 @@ static void fitToMonitor(_GLFWwindow* window)
static void acquireMonitor(_GLFWwindow* window)
{
if (!_glfw.win32.acquiredMonitorCount)
{
SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED);
// HACK: When mouse trails are enabled the cursor becomes invisible when
// the OpenGL ICD switches to page flipping
if (IsWindowsXPOrGreater())
{
SystemParametersInfo(SPI_GETMOUSETRAILS, 0, &_glfw.win32.mouseTrailSize, 0);
SystemParametersInfo(SPI_SETMOUSETRAILS, 0, 0, 0);
}
}
if (!window->monitor->window)
_glfw.win32.acquiredMonitorCount++;
@ -546,8 +557,14 @@ static void releaseMonitor(_GLFWwindow* window)
_glfw.win32.acquiredMonitorCount--;
if (!_glfw.win32.acquiredMonitorCount)
{
SetThreadExecutionState(ES_CONTINUOUS);
// HACK: Restore mouse trail length saved in acquireMonitor
if (IsWindowsXPOrGreater())
SystemParametersInfo(SPI_SETMOUSETRAILS, _glfw.win32.mouseTrailSize, 0, 0);
}
_glfwInputMonitorWindow(window->monitor, NULL);
_glfwRestoreVideoModeWin32(window->monitor);
}