GetAsyncKeyState(VK_RETURN)错误地计算为true是一个常见的编程错误。GetAsyncKeyState函数用于检查指定虚拟键的状态,其中VK_RETURN代表回车键。根据Windows API文档,该函数返回一个SHORT类型的值,如果指定的键当前被按下,则最高位(最左边的位)为1,否则为0。 当GetAsyncKeyState(VK_RETURN)错误地计算为true时,意味着函数...
您没有正确检查返回值,它不会根据您检查的内容返回BOOL!GetAsyncKeyState(VK_RETURN) < 0或...
I'm not sure if it's with the GetAsyncKeyState(VK_RETURN) statement, since every time I try to put in the last info, which is "Enter Year", it kinda goes back to the menu, but automatically presses enter on the "Input Student" option. #include<stdio.h> #include<stdlib.h> #include...
VK_LBUTTON鼠标左键0x01 VK_RBUTTON鼠标右键0x02 VK_CANCEL Ctrl + Break 0x03 VK_MBUTTON鼠标中键0x04 VK_BACK Backspace键0x08 VK_TAB Tab键0x09 VK_RETURN回车键0x0D VK_SHIFT Shift键0x10 VK_CONTROL Ctrl键0x11 VK_MENU Alt键0x12 VK_PAUSE Pause键0x13 VK_CAPITAL Caps Lock键0x14 VK_ESCAPE...
short a = ::GetAsyncKeyState(VK_LSHIFT) printf( "0x%x",a); sleep(10); } } 当然,用MessageBox可以这样写: if(short a = ::GetAsyncKeyState(VK_LSHIFT)) { char buffer[30]; sprintf(buffer, "0x%x",a); MessageBox(0, buffer, "a的值", MB_OK); ...
例如,虚拟键码VK_SPACE表示空格键,VK_RETURN表示回车键。 getasynckeystate函数的返回值是一个SHORT类型的值,表示按键的状态。如果指定的按键当前被按下,则返回值的最高位(第15位)为1;如果指定的按键当前未被按下,则返回值为0。除了返回按键状态外,getasynckeystate函数还会将按键的状态存储在一个特殊的键盘状态表中...
VK_MBUTTON4鼠标中键 VK_XBUTTON15 VK_XBUTTON26 VK_BACK8Backspace VK_TAB9Tab VK_CLEAR12Clear VK_RETURN13Enter VK_SHIFT16Shift VK_CONTROL17Ctrl VK_MENU18Alt VK_PAUSE19Pause VK_CAPITAL20Caps Lock VK_KANA21 VK_HANGUL21 VK_JUNJA23 ...
short GetAsyncKeyState(int Keycode); 下面的例子是检查左SHIFT键是否按下: if(GetAsyncKeyState(VK_LSHIFT)) { //whatever } 注意:由于调用的性质,可以检查多个值.下一个例子测试左SHIFT键与RETURN键的组合: if(GetAsyncKeyState(VK_LSHIFT) && GetAsyncKeyState(VK_RETURN)) ...
if(GetAsyncKeyState(VK_LBUTTON)&0x8000) { std::cout<<"Left mouse button is pressed."<<std::endl; } } return0; } 在上面的示例代码中,我们使用了getasynckeystate函数来检测左键是否被按下。 总结 getasynckeystate函数是一个非常有用的Windows API函数,用于检测键盘和鼠标的状态。它可以实现实时监测输入设...
For example, the call GetAsyncKeyState(VK_LBUTTON) always returns the state of the left physical mouse button, regardless of whether it is mapped to the left or right logical mouse button. You can determine the system's current mapping of physical mouse buttons to logical mouse buttons by ...