问题描述
问题描述请教一个关于keypress中联合相应两个热键，就像QQ按CTRL+ENTER后发送消息一样。if(e.KeyChar==(char)13){}这个只能响应回车键请高人指点
解决方案
解决方案二：
usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Runtime.InteropServices;usingSystem.Reflection;usingSystem.Diagnostics;namespaceWindowsApplication1{///<summary>///DescriptionofMainForm.///</summary>publicpartialclassForm4:Form{//委托publicdelegateintHookProc(intnCode,intwParam,IntPtrlParam);staticinthHook=0;publicconstintWH_KEYBOARD_LL=13;//LowLevel键盘截获，如果是WH_KEYBOARD＝2，并不能对系统键盘截取，AcrobatReader会在你截取之前获得键盘。HookProcKeyBoardHookProcedure;//键盘Hook结构函数[StructLayout(LayoutKind.Sequential)]publicclassKeyBoardHookStruct{publicintvkCode;publicintscanCode;publicintflags;publicinttime;publicintdwExtraInfo;}#regionDllImport//设置钩子[DllImport("user32.dll")]publicstaticexternintSetWindowsHookEx(intidHook,HookProclpfn,IntPtrhInstance,intthreadId);[DllImport("user32.dll",CharSet=CharSet.Auto,CallingConvention=CallingConvention.StdCall)]//抽掉钩子publicstaticexternboolUnhookWindowsHookEx(intidHook);[DllImport("user32.dll")]//调用下一个钩子publicstaticexternintCallNextHookEx(intidHook,intnCode,intwParam,IntPtrlParam);[DllImport("kernel32.dll")]publicstaticexternintGetCurrentThreadId();[DllImport("kernel32.dll")]publicstaticexternIntPtrGetModuleHandle(stringname);#endregion#region自定义事件publicvoidHook_Start(){//安装键盘钩子if(hHook==0){KeyBoardHookProcedure=newHookProc(KeyBoardHookProc);//hHook=SetWindowsHookEx(2,//KeyBoardHookProcedure,//GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName),GetCurrentThreadId());hHook=SetWindowsHookEx(WH_KEYBOARD_LL,KeyBoardHookProcedure,GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName),0);//如果设置钩子失败.if(hHook==0){Hook_Clear();//thrownewException("设置Hook失败!");}}}//取消钩子事件publicvoidHook_Clear(){boolretKeyboard=true;if(hHook!=0){retKeyboard=UnhookWindowsHookEx(hHook);hHook=0;}//如果去掉钩子失败.if(!retKeyboard)thrownewException("UnhookWindowsHookExfailed.");}//这里可以添加自己想要的信息处理publicstaticintKeyBoardHookProc(intnCode,intwParam,IntPtrlParam){if(nCode>=0){KeyBoardHookStructkbh=(KeyBoardHookStruct)Marshal.PtrToStructure(lParam,typeof(KeyBoardHookStruct));if(kbh.vkCode==(int)Keys.S&&(int)Control.ModifierKeys==(int)Keys.Control)//截获F8{MessageBox.Show("快捷键已拦截!不能保存!");return1;}if(kbh.vkCode==(int)Keys.Y&&(int)Control.ModifierKeys==(int)Keys.Control+(int)Keys.Alt)//截获Ctrl+Alt+Y{//MessageBox.Show("不能全部保存!");return1;}if(kbh.vkCode==(int)Keys.X){MessageBox.Show("不能全部保存!");return1;}}returnCallNextHookEx(hHook,nCode,wParam,lParam);}#endregionpublicForm4(){InitializeComponent();}privatevoidbutton1_Click(objectsender,EventArgse){Hook_Start();}privatevoidbutton2_Click(objectsender,EventArgse){Hook_Clear();}}}
解决方案三：
有没有其他的办法呢？
解决方案四：
if(e.Alt&&e.KeyCode==Keys.F4){}
写在keydown事件里
解决方案五：
试了一下CTRL+ENTERkey_press事件里e.keychar是10'n'用其他的键,或单独按ENTER时10'r'不知道可不可以
解决方案六：
在keydown事件里e的属性去判断。e.control这个属性。
解决方案七：
privatevoidtext1_KeyDown(objectsender,KeyEventArgse){if(e.Control&&e.KeyCode==Keys.Enter){MessageBox.Show("ctrl+enter");}}
解决方案八：
参考如下代码：privatevoidtextBox1_KeyPress(objectsender,KeyPressEventArgse){switch(e.KeyChar){case(char)Keys.LineFeed://#10case(char)Keys.Enter://#13if(Control.ModifierKeys==Keys.Control){Console.WriteLine(((TextBox)sender).Text);//输出((TextBox)sender).Clear();e.Handled=true;//使输入失效}break;}}