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#include <windows.h>
#include <cstdio>
#include <cstdlib>
#ifndef SM_CMONITORS
typedef HANDLE HMONITOR;
#endif
#ifndef DISPLAY_DEVICE_PRIMARY_DEVICE
typedef struct _DISPLAY_DEVICE
{
DWORD cb;
TCHAR DeviceName[32];
TCHAR DeviceString[128];
DWORD StateFlags;
TCHAR DeviceID[128];
TCHAR DeviceKey[128];
} DISPLAY_DEVICE, *PDISPLAY_DEVICE;
#define DISPLAY_DEVICE_ATTACHED_TO_DESKTOP 0x00000001
#define DISPLAY_DEVICE_PRIMARY_DEVICE 0x00000004
#endif
int main (int argc, char**argv)
{
BOOL (WINAPI* pEnumDisplayDevices)(PVOID,DWORD,PVOID,DWORD);
BOOL (WINAPI* pEnumDisplaySettings)(PVOID,DWORD,PVOID);
(FARPROC)pEnumDisplayDevices = GetProcAddress(LoadLibrary("USER32"), "EnumDisplayDevicesA");
(FARPROC)pEnumDisplaySettings = GetProcAddress(LoadLibrary("USER32"), "EnumDisplaySettingsA");
if( pEnumDisplayDevices )
{
DISPLAY_DEVICE dd;
ZeroMemory(&dd, sizeof(dd));
dd.cb = sizeof(dd);
DEVMODE dm;
ZeroMemory(&dm, sizeof(dm));
dm.dmSize = sizeof(dm);
for( unsigned int i=0; (*pEnumDisplayDevices)(NULL, i, &dd, 0); i++ )
{
if( (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) &&
(dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP) )
{
printf("Device name : %s\n", dd.DeviceString);
(*pEnumDisplaySettings)(dd.DeviceName, 0, &dm);
printf("Driver version : %d\n", dm.dmDriverVersion);
printf("Vertical refresh rate : %d Hz\n", dm.dmDisplayFrequency);
break;
}
}
}
system("PAUSE");
return EXIT_SUCCESS;
} |
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