局部钩子捕获ALT组合键失败

[maomao85]

LRESULT CALLBACK KeyboardProc(int code,WPARAM wParam,LPARAM lParam)
{  

	if ( code == HC_ACTION && lParam & 0x40000000)	
	{
		     CString hotkey=_T("");
			 char press;
			if (GetKeyState(VK_CONTROL)&0x8000  &&  wParam>=48 && wParam<=57 )
			{
				press=wParam;
				hotkey.Format(_T("Ctrl+%c"),press);
				DoFunction(hotkey);
			}
			else if (GetKeyState(VK_CONTROL)&0x8000  && wParam>=VK_NUMPAD0 && wParam<=VK_NUMPAD9 )
			{
				int n= wParam-VK_NUMPAD0;
				press=48+n;
				hotkey.Format(_T("Ctrl+%c"),press);
				DoFunction(hotkey);
			}
			
			else if (GetKeyState(VK_MENU)&0x8000  &&  wParam>=48 && wParam<=57)
			{
				press=wParam;
				hotkey.Format(_T("Alt+%c"),press);
				DoFunction(hotkey);
			}
			else if (GetKeyState(VK_MENU)&0x8000  && wParam>=VK_NUMPAD0 && wParam<=VK_NUMPAD9 )
			{
				int n= wParam-VK_NUMPAD0;
				press=48+n;
				hotkey.Format(_T("Alt+%c"),press);
				DoFunction(hotkey);
			}

		}
	return CallNextHookEx(hook,code,wParam,lParam);
}

GetKeyState(VK_CONTROL)&0x8000 && wParam>=48 && wParam<=57 可以捕获Ctrl+1
但是GetKeyState(VK_MENU)&0x8000 && wParam>=48 && wParam<=57 就不能捕获Alt+1

[jacky_qiu]

win7+vs2008 express 下通过：

LRESULT CALLBACK KeyboardProc(int code,WPARAM wParam, LPARAM lParam)
{
	if(code <0)
		return CallNextHookEx(g_hKeyboard,code,wParam,lParam);

	UINT nChar=wParam;

	switch (nChar)
	{
	case 'B':
		{
			if ( HIWORD(lParam) &  KF_ALTDOWN )
			{
				trace("alt+B");
			}
		}
		break;
	}

	

	return CallNextHookEx(g_hKeyboard,code,wParam,lParam);
}

[maomao85]

引用 1 楼 jacky_qiu 的回复:

win7+vs2008 express 下通过：

LRESULT CALLBACK KeyboardProc(int code,WPARAM wParam, LPARAM lParam)
{
	if(code <0)
		return CallNextHookEx(g_hKeyboard,code,wParam,lParam);

	UINT nChar=wParam;

	switch (nChar)
	{
	case 'B':
		{
			if ( HIWORD(lParam) &  KF_ALTDOWN )
			{
				trace("alt+B");
			}
		}
		break;
	}

	

	return CallNextHookEx(g_hKeyboard,code,wParam,lParam);
}

为什么ALT键的时候 GetKeyState(VK_MENU)&0x8000 && wParam>=48 && wParam<=57 lParam & 0x40000000 失效了啊

[wyx100]

引用 1 楼 jacky_qiu 的回复:

win7+vs2008 express 下通过：

LRESULT CALLBACK KeyboardProc(int code,WPARAM wParam, LPARAM lParam)
{
	if(code <0)
		return CallNextHookEx(g_hKeyboard,code,wParam,lParam);

	UINT nChar=wParam;

	switch (nChar)
	{
	case 'B':
		{
			if ( HIWORD(lParam) &  KF_ALTDOWN )
			{
				trace("alt+B");
			}
		}
		break;
	}

	

	return CallNextHookEx(g_hKeyboard,code,wParam,lParam);
}

顶

[maomao85]

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