键盘挂钩在Windows资源管理器中获取错误 [英] KeyBoard Hook get error on Window Explorer

问题描述

大家好，
我从窗口上的键盘挂钩开始.
现在，我在运行应用程序时遇到问题.

当我专注于任何程序时，例如:Skype，yahoo，firefox，chrome ...
我的钩子工作正常，
但是当我最小化所有这些内容并专注于桌面或窗口浏览器时，请按任意键
我的钩子出现错误，使我的窗口浏览器强制关闭，或者中断直到我停止钩子.

这是我的hook.dll代码:

Hi all,
I''m starting with Keyboard hook on window.
Now, I''m getting problem when running my application.

When I focus on any program such as: skype, yahoo, firefox, chrome...
my hook is working ok,
But when I minimized all them and focus on desktop or window explorer, press any key
my hook get error, that make my window explorer force close, or interrupt until I stop my hook.

This is my hook.dll code:

extern "C"{
	
__declspec(dllexport) LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam) 
{
		
		if(nCode == HC_ACTION){
			f1=fopen("d:\\Report.txt","a");
			fputc((char)wParam, f1);
			fclose(f1);
		}
		
		return CallNextHookEx(hGlobalHook, nCode, wParam, lParam);
}
}

int _tmain(int argc, _TCHAR* argv[])
{
	hinstDLL = LoadLibrary(TEXT("C:\\Hook.dll")); 
	hookProc = (HOOKPROC)GetProcAddress(hinstDLL, (LPCSTR)"KeyboardProc"); 
	MYPROC proc;
	if(hinstDLL == NULL)
		printf("\nload dll fail");
	else
		printf("\nload dll finish");
	if(hookProc == NULL)
		printf("\nload func fail \n");
	else
		printf("\nload func finished\n");
	hhookSysMsg = SetWindowsHookEx( 
                    WH_KEYBOARD,
                    hookProc,
                    hinstDLL,
                    0);
	proc = (MYPROC)GetProcAddress(hinstDLL, (LPCSTR)"SetGlobalHookHandle"); 
	if(proc != NULL){		
		(proc)(hhookSysMsg);
	}
	getch();
	return 0;
}

这是我的实现代码:


任何人都可以帮助我解决这个问题吗，
谢谢大家.

This is my implementation code:


Can any body help me to solve this,
Thanks all.

推荐答案

在64位Windows上运行时，使用32位hook DLL可能会发生这种情况.尽管以32位应用程序为焦点，但在以64位进程为焦点之前，所有程序都运行良好.

使用64位Windows时，请通过在32位计算机上测试程序来验证这一点，并且/或者检查当任何64位应用程序都具有焦点时是否还会出现问题.

This may occur with a 32-bit hook DLL when running on a 64-bit Windows. While a 32-bit application has the focus, all is working well until a 64-bit process gets the focus.

When using a 64-bit Windows, verify this by testing your program on a 32-bit machine and/or check if the problem occurs also when any 64-bit application has the focus.

这篇关于键盘挂钩在Windows资源管理器中获取错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！