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Win32: Fix screensaver and blanking prevention

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On Vista and later, Handling WM_SYSCOMMAND is not enough to prevent
password protected screensavers or monitor blanking.

Fixes #851.
This commit is contained in:
Camilla Löwy 2017-02-09 21:21:58 +01:00
parent 366b90be1a
commit 355b46e6c5
3 changed files with 12 additions and 0 deletions
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2
README.md
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@ -149,6 +149,8 @@ information on what to include when reporting a bug.
- [Win32] Bugfix: Bitness test in `FindVulkan.cmake` was VS specific (#928) - [Win32] Bugfix: Bitness test in `FindVulkan.cmake` was VS specific (#928)
- [Win32] Bugfix: `glfwVulkanSupported` emitted an error on systems with - [Win32] Bugfix: `glfwVulkanSupported` emitted an error on systems with
a loader but no ICD (#916) a loader but no ICD (#916)
- [Win32] Bugfix: Non-iconified full sreeen windows did not prevent screen
blanking or password enabled screensavers (#851)
- [X11] Replaced `_GLFW_HAS_XF86VM` compile-time option with dynamic loading - [X11] Replaced `_GLFW_HAS_XF86VM` compile-time option with dynamic loading
- [X11] Bugfix: `glfwGetVideoMode` would segfault on Cygwin/X - [X11] Bugfix: `glfwGetVideoMode` would segfault on Cygwin/X
- [X11] Bugfix: Dynamic X11 library loading did not use full sonames (#941) - [X11] Bugfix: Dynamic X11 library loading did not use full sonames (#941)

1
src/win32_platform.h
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@ -248,6 +248,7 @@ typedef struct _GLFWlibraryWin32
{ {
HWND helperWindowHandle; HWND helperWindowHandle;
DWORD foregroundLockTimeout; DWORD foregroundLockTimeout;
int acquiredMonitorCount;
char* clipboardString; char* clipboardString;
char keyName[64]; char keyName[64];
short int keycodes[512]; short int keycodes[512];

9
src/win32_window.c
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@ -422,6 +422,11 @@ static GLFWbool acquireMonitor(_GLFWwindow* window)
GLFWbool status; GLFWbool status;
int xpos, ypos; int xpos, ypos;
if (!_glfw.win32.acquiredMonitorCount)
SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED);
if (!window->monitor->window)
_glfw.win32.acquiredMonitorCount++;
status = _glfwSetVideoModeWin32(window->monitor, &window->videoMode); status = _glfwSetVideoModeWin32(window->monitor, &window->videoMode);
_glfwPlatformGetVideoMode(window->monitor, &mode); _glfwPlatformGetVideoMode(window->monitor, &mode);
@ -442,6 +447,10 @@ static void releaseMonitor(_GLFWwindow* window)
if (window->monitor->window != window) if (window->monitor->window != window)
return; return;
_glfw.win32.acquiredMonitorCount--;
if (!_glfw.win32.acquiredMonitorCount)
SetThreadExecutionState(ES_CONTINUOUS);
_glfwInputMonitorWindow(window->monitor, NULL); _glfwInputMonitorWindow(window->monitor, NULL);
_glfwRestoreVideoModeWin32(window->monitor); _glfwRestoreVideoModeWin32(window->monitor);
} }