使用SetupApi获取LCD EDID信息

本文主要是介绍使用SetupApi获取LCD EDID信息，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

获取更多的显示信息，可以参考微软的MSDN网站。网址如下：

http://msdn.microsoft.com/en-us/library/dd692964%28v=vs.85%29.aspx

http://msdn.microsoft.com/en-us/library/windows/hardware/ff551069%28v=vs.85%29.aspx


#include "windows.h"
#include "setupapi.h"
#include "initguid.h"
#include "stdio.h"
#define NAME_SIZE 128
#define PRINT(_x_) printf _x_
DEFINE_GUID (GUID_CLASS_MONITOR, 0x4d36e96e, 0xe325, 0x11ce, 0xbf, 0xc1, 0x08, 0x00, 0x2b, 0xe1, 0x03, 0x18);
int EdidDecode(unsigned char *pEdid, DWORD size)
{
char table[27]={'0','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
unsigned int *sn=(unsigned int*)&pEdid[0x0c];
printf("\n\n====== EDID Decode======");
printf("\nMonitor ID: %c%c%c%02X%02X", table[pEdid[0x08]>>2&0x1f], table[(pEdid[0x08]&0x3)<<3|pEdid[0x09]>>5], table[pEdid[0x09]&0x1f]
, pEdid[0x0b],pEdid[0x0a]);
printf("\nEDID Date: Week%d, Year%d", pEdid[0x10],pEdid[0x11]+1990);
printf("\nEDID Version: %X.%X", pEdid[0x12],pEdid[0x13]);
printf("\nSerial Number: %d", *sn);
printf("\nMonitor Name: ");
for(int i=0; i<15;i++)
if(isprint(pEdid[0x6f+i]))
printf("%c", pEdid[0x6f+i]);
printf("\nEDID Checksum: 0x%02X", pEdid[0x7f]);
return 1;
}
static void getDeviceInfo(IN HDEVINFO devInfo, IN PSP_DEVINFO_DATA devInfoData)
{
HKEY hDevRegKey;
DWORD uniID[123];
unsigned char EDIDdata[1024];
DWORD edidsize=sizeof(EDIDdata);
if (SetupDiGetDeviceRegistryProperty(devInfo, devInfoData,
SPDRP_DEVICEDESC,//SPDRP_UI_NUMBER,
NULL,
(PBYTE)(&uniID),
sizeof(uniID),
NULL))
{
//printf("UID: %s\n",uniID);
}
else {
printf("ERROR: %d\n",GetLastError());
}
hDevRegKey = SetupDiOpenDevRegKey(devInfo, devInfoData,
DICS_FLAG_GLOBAL,
0,
DIREG_DEV,
KEY_ALL_ACCESS);
if (hDevRegKey) {
LONG retValue,i;
DWORD dwType, AcutalValueNameLength= NAME_SIZE;
CHAR valueName[NAME_SIZE];
for (i = 0, retValue = ERROR_SUCCESS; retValue !=ERROR_NO_MORE_ITEMS; i++)
{
DWORD j;
retValue = RegEnumValueA (hDevRegKey, i, &valueName[0], &AcutalValueNameLength, NULL, &dwType, EDIDdata, &edidsize); // buffer size
if (retValue == ERROR_SUCCESS )
{
if (!strcmp(valueName,"EDID")) {
printf("Found value EDID\n");
for (j=0;j

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