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Diffstat (limited to 'xorg-server/hw/xwin/winmonitors.c')
-rw-r--r--xorg-server/hw/xwin/winmonitors.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/xorg-server/hw/xwin/winmonitors.c b/xorg-server/hw/xwin/winmonitors.c
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+++ b/xorg-server/hw/xwin/winmonitors.c
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+/*
+
+Copyright 1993, 1998 The Open Group
+Copyright (C) Colin Harrison 2005-2008
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+
+#include "win.h"
+#include "winmonitors.h"
+
+/*
+ * getMonitorInfo - callback function used to return information from the enumeration of monitors attached
+ */
+
+static
+wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data)
+{
+ struct GetMonitorInfoData* data = (struct GetMonitorInfoData*)_data;
+ // only get data for monitor number specified in <data>
+ data->monitorNum++;
+ if (data->monitorNum == data->requestedMonitor)
+ {
+ data->bMonitorSpecifiedExists = TRUE;
+ data->monitorOffsetX = rect->left;
+ data->monitorOffsetY = rect->top;
+ data->monitorHeight = rect->bottom - rect->top;
+ data->monitorWidth = rect->right - rect->left;
+ return FALSE;
+ }
+ return TRUE;
+}
+
+typedef wBOOL (*ENUMDISPLAYMONITORSPROC)(HDC,LPCRECT,MONITORENUMPROC,LPARAM);
+ENUMDISPLAYMONITORSPROC _EnumDisplayMonitors;
+
+wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data);
+
+Bool QueryMonitor(int index, struct GetMonitorInfoData *data)
+{
+ /* Load EnumDisplayMonitors from DLL */
+ HMODULE user32;
+ FARPROC func;
+ user32 = LoadLibrary("user32.dll");
+ if (user32 == NULL)
+ {
+ winW32Error(2, "Could not open user32.dll");
+ return FALSE;
+ }
+ func = GetProcAddress(user32, "EnumDisplayMonitors");
+ if (func == NULL)
+ {
+ winW32Error(2, "Could not resolve EnumDisplayMonitors: ");
+ return FALSE;
+ }
+ _EnumDisplayMonitors = (ENUMDISPLAYMONITORSPROC)func;
+
+ /* prepare data */
+ if (data == NULL)
+ return FALSE;
+ memset(data, 0, sizeof(*data));
+ data->requestedMonitor = index;
+
+ /* query information */
+ _EnumDisplayMonitors(NULL, NULL, getMonitorInfo, (LPARAM) data);
+
+ /* cleanup */
+ FreeLibrary(user32);
+ return TRUE;
+}