代码禁用但无法启用 [英] Code Disables But Won't Enable

问题描述

我有这段代码可以编辑Windows注册表.当设置设置为启用时，它工作正常，我运行以下代码以禁用...

I have this code that edits the windows registry. It works fine when the setting is set to enable and I run the following code to disable...

HKEY hKey; DWORD buffersize = 1024; DWORD dwErr = NO_ERROR; 
#define BUFFER_SIZE 1024
dwErr = RegOpenKeyEx (HKEY_CURRENT_USER,"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\Zones\\3",NULL,KEY_SET_VALUE|KEY_QUERY_VALUE,&hKey);
	if(ERROR_SUCCESS == dwErr)
	{
	BYTE data[BUFFER_SIZE] = {0};
	DWORD dwType = REG_NONE;
	dwErr = RegQueryValueExW(hKey,L"1803",NULL,&dwType,data,&buffersize);
		if(ERROR_SUCCESS == dwErr && REG_DWORD == dwType)
                {
		*((LPDWORD)data) = 3; //0 is Enable 3 is Disable
		dwErr = RegSetValueExW(hKey,L"1803",0,REG_DWORD,data,sizeof(DWORD));
		}
		RegCloseKey (hKey);
		}

但是，当我尝试切换此行时*((LPWORD)data)= 0;
它不会从禁用更改为启用.也许我必须清除缓冲区?任何建议欢迎.谢谢.

However when I try to switch this line *((LPWORD)data) = 0;
It doesn''t change from disabled to enabled. Perhaps I have to clear the BUFFER? Any suggestions welcomed. Thank you.

推荐答案

代码有效.如果使用regedit查看更改，则需要从菜单中选择View-> Refresh()才能查看更改.

快速说明...此注册表项更改了区域3(Internet区域)中基于Microsoft Trident的浏览器的Internet安全设置.您很可能需要向HWND_BROADCAST句柄发送WM_SETTINGCHANGE消息，以通知应用程序设置已更改.

最好的祝福，
-大卫·德劳恩(David Delaune)

The code works. If you are using regedit to view the changes then you need to select View->Refresh() from the menu to see the changes.

A quick note... this registry key changes an internet security setting for Microsoft Trident based browsers at zone 3 (Internet Zone). You will most likely need to send a WM_SETTINGCHANGE message to the HWND_BROADCAST handle to notify applications that a setting has been changed.

Best Wishes,
-David Delaune

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