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Win32: Improve monitor enumeration
This changes enumeration to add as a GLFW monitor any active adapter without displays, even if other active adapters do have displays. Related to #441. Fixes #960.
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@ -165,6 +165,7 @@ information on what to include when reporting a bug.
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- [Win32] Bugfix: Mouse capture logic lost secondary release messages (#954)
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- [Win32] Bugfix: The 32-bit Vulkan loader library static was not searched for
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- [Win32] Bugfix: Vulkan libraries have a new path as of SDK 1.0.42.0 (#956)
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- [Win32] Bugfix: Monitors with no display devices were not enumerated (#960)
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- [X11] Replaced `_GLFW_HAS_XF86VM` compile-time option with dynamic loading
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- [X11] Bugfix: `glfwGetVideoMode` would segfault on Cygwin/X
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- [X11] Bugfix: Dynamic X11 library loading did not use full sonames (#941)
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@ -94,7 +94,6 @@ void _glfwPollMonitorsWin32(void)
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_GLFWmonitor** disconnected = NULL;
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DWORD adapterIndex, displayIndex;
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DISPLAY_DEVICEW adapter, display;
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GLFWbool hasDisplays = GLFW_FALSE;
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disconnectedCount = _glfw.monitorCount;
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if (disconnectedCount)
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@ -105,30 +104,6 @@ void _glfwPollMonitorsWin32(void)
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_glfw.monitorCount * sizeof(_GLFWmonitor*));
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}
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// HACK: Check if any active adapters have connected displays
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// If not, this is a headless system or a VMware guest
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for (adapterIndex = 0; ; adapterIndex++)
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{
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ZeroMemory(&adapter, sizeof(DISPLAY_DEVICEW));
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adapter.cb = sizeof(DISPLAY_DEVICEW);
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if (!EnumDisplayDevicesW(NULL, adapterIndex, &adapter, 0))
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break;
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if (!(adapter.StateFlags & DISPLAY_DEVICE_ACTIVE))
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continue;
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ZeroMemory(&display, sizeof(DISPLAY_DEVICEW));
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display.cb = sizeof(DISPLAY_DEVICEW);
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if (EnumDisplayDevicesW(adapter.DeviceName, 0, &display, 0))
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{
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hasDisplays = GLFW_TRUE;
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break;
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}
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}
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for (adapterIndex = 0; ; adapterIndex++)
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{
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int type = _GLFW_INSERT_LAST;
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@ -145,8 +120,6 @@ void _glfwPollMonitorsWin32(void)
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if (adapter.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
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type = _GLFW_INSERT_FIRST;
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if (hasDisplays)
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{
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for (displayIndex = 0; ; displayIndex++)
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{
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ZeroMemory(&display, sizeof(DISPLAY_DEVICEW));
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@ -155,6 +128,9 @@ void _glfwPollMonitorsWin32(void)
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if (!EnumDisplayDevicesW(adapter.DeviceName, displayIndex, &display, 0))
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break;
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if (!(display.StateFlags & DISPLAY_DEVICE_ACTIVE))
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continue;
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for (i = 0; i < disconnectedCount; i++)
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{
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if (disconnected[i] &&
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@ -174,8 +150,10 @@ void _glfwPollMonitorsWin32(void)
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type = _GLFW_INSERT_LAST;
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}
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}
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else
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// HACK: If an active adapter does not have any display devices
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// (as sometimes happens), add it directly as a monitor
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if (displayIndex == 0)
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{
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for (i = 0; i < disconnectedCount; i++)
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{
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