81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
|
#include "main.h"
|
||
|
|
#include "VideoOutputChildDDraw.h"
|
||
|
|
#include <multimon.h>
|
||
|
|
#include <ddraw.h>
|
||
|
|
|
||
|
|
class MonitorFinder
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
MonitorFinder(HMONITOR hm) : m_monitor_to_find(hm), m_found_devguid(0)
|
||
|
|
{}
|
||
|
|
|
||
|
|
HMONITOR m_monitor_to_find;
|
||
|
|
int m_found_devguid;
|
||
|
|
GUID m_devguid;
|
||
|
|
};
|
||
|
|
|
||
|
|
static BOOL WINAPI DDEnumCallbackEx(GUID FAR *lpGUID, LPSTR lpDriverDescription, LPSTR lpDriverName, LPVOID lpContext, HMONITOR hm)
|
||
|
|
{
|
||
|
|
MonitorFinder *ovo = (MonitorFinder *)lpContext;
|
||
|
|
if (ovo->m_found_devguid) return 1;
|
||
|
|
if (hm == ovo->m_monitor_to_find)
|
||
|
|
{
|
||
|
|
ovo->m_devguid = *lpGUID;
|
||
|
|
ovo->m_found_devguid = 1;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void VideoOutputChildDDraw::update_monitor_coords()
|
||
|
|
{
|
||
|
|
//find the correct monitor if multiple monitor support is present
|
||
|
|
m_mon_x = 0;
|
||
|
|
m_mon_y = 0;
|
||
|
|
|
||
|
|
HINSTANCE h = LoadLibrary(L"user32.dll");
|
||
|
|
if (h)
|
||
|
|
{
|
||
|
|
HMONITOR (WINAPI *Mfp)(POINT pt, DWORD dwFlags) = (HMONITOR (WINAPI *)(POINT, DWORD)) GetProcAddress(h, "MonitorFromPoint");
|
||
|
|
HMONITOR (WINAPI *Mfr)(LPCRECT lpcr, DWORD dwFlags) = (HMONITOR (WINAPI *)(LPCRECT, DWORD)) GetProcAddress(h, "MonitorFromRect");
|
||
|
|
HMONITOR (WINAPI *Mfw)(HWND wnd, DWORD dwFlags) = (HMONITOR (WINAPI *)(HWND, DWORD)) GetProcAddress(h, "MonitorFromWindow");
|
||
|
|
BOOL (WINAPI *Gmi)(HMONITOR mon, LPMONITORINFO lpmi) = (BOOL (WINAPI *)(HMONITOR, LPMONITORINFO)) GetProcAddress(h, "GetMonitorInfoA");
|
||
|
|
if (Mfp && Mfr && Mfw && Gmi)
|
||
|
|
{
|
||
|
|
HMONITOR hm = Mfw(parent, 0);
|
||
|
|
if (hm)
|
||
|
|
{
|
||
|
|
HINSTANCE hdd = LoadLibrary(L"ddraw.dll");
|
||
|
|
if (hdd)
|
||
|
|
{
|
||
|
|
typedef BOOL (FAR PASCAL * LPDDENUMCALLBACKEXA)(GUID FAR *, LPSTR, LPSTR, LPVOID, HMONITOR);
|
||
|
|
typedef HRESULT (WINAPI * LPDIRECTDRAWENUMERATEEX)( LPDDENUMCALLBACKEXA lpCallback, LPVOID lpContext, DWORD dwFlags);
|
||
|
|
LPDIRECTDRAWENUMERATEEX lpDDEnumEx;
|
||
|
|
lpDDEnumEx = (LPDIRECTDRAWENUMERATEEX) GetProcAddress(hdd, "DirectDrawEnumerateExW");
|
||
|
|
if (lpDDEnumEx)
|
||
|
|
{
|
||
|
|
MonitorFinder finder(hm);
|
||
|
|
|
||
|
|
lpDDEnumEx(&DDEnumCallbackEx, &finder, DDENUM_ATTACHEDSECONDARYDEVICES | DDENUM_NONDISPLAYDEVICES);
|
||
|
|
foundGUID=!!finder.m_found_devguid;
|
||
|
|
if (foundGUID)
|
||
|
|
{
|
||
|
|
m_devguid=finder.m_devguid;
|
||
|
|
MONITORINFOEXW mi;
|
||
|
|
memset(&mi, 0, sizeof(mi));
|
||
|
|
mi.cbSize = sizeof(mi);
|
||
|
|
if (Gmi(hm, &mi))
|
||
|
|
{
|
||
|
|
m_mon_x = mi.rcMonitor.left;
|
||
|
|
m_mon_y = mi.rcMonitor.top;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
FreeLibrary(hdd);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
FreeLibrary(h);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|