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