winapi - 键盘的SendInput()-仅小写

我有以下代码：

INPUT Input = { 0 };
Input.type       = INPUT_KEYBOARD;
Input.mi.dwFlags = KEYEVENTF_EXTENDEDKEY;
Input.ki.wVk   = 'A'; // tried 0x41, ( UCHAR )VkKeyScan( 'A' )
SendInput( 1, &Input, sizeof( INPUT ) );

但这只会给我一个“ a”。如何迫使它也产生大写？

谢谢。

最佳答案

编辑：根据Rodrigo的评论进行了一些修改。

INPUT Input = { 0 };
// shift key down
Input.type       = INPUT_KEYBOARD;
Input.ki.wVk   = VK_LSHIFT;
SendInput( 1, &Input, sizeof( INPUT ) );

// 'a' key down
Input.type       = INPUT_KEYBOARD;
Input.ki.wVk   = 'A';
SendInput( 1, &Input, sizeof( INPUT ) );

// 'a' key release
Input.type       = INPUT_KEYBOARD;
Input.ki.dwFlags = KEYEVENTF_KEYUP;
Input.ki.wVk   = 'A';
SendInput( 1, &Input, sizeof( INPUT ) );

// shift key release
Input.type       = INPUT_KEYBOARD;
Input.ki.dwFlags = KEYEVENTF_KEYUP;
Input.ki.wVk   = VK_LSHIFT;
SendInput( 1, &Input, sizeof( INPUT ) );

编辑：这是另一个代码，示例在发送字母后关闭大写字母/移位：

INPUT Event = { 0 };

const SHORT key = VkKeyScan('a');
const UINT mappedKey = MapVirtualKey( LOBYTE( key ), 0 );

// Press shift key
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE;
Event.ki.wScan = MapVirtualKey( VK_LSHIFT, 0 );
SendInput( 1, &Event, sizeof( Event ) );

// upper case 'A'
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE;
Event.ki.wScan = mappedKey;
SendInput( 1, &Event, sizeof( Event ) );

// release upper case 'A'
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
Event.ki.wScan = mappedKey;
SendInput( 1, &Event, sizeof( Event ) );

// Release shift key
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
Event.ki.wScan = MapVirtualKey( VK_LSHIFT, 0 );
SendInput( 1, &Event, sizeof( Event ) );

const SHORT key1 = VkKeyScan('A');
const UINT mappedKey1 = MapVirtualKey( LOBYTE( key1 ), 0 );

// lower case 'a'
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE;
Event.ki.wScan = mappedKey1;
SendInput( 1, &Event, sizeof( Event ) );

// release lower case 'a'
Event.type = INPUT_KEYBOARD;
Event.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
Event.ki.wScan = mappedKey1;
SendInput( 1, &Event, sizeof( Event ) );

这里的解释（我希望解释是正确的）：SendInput() for keyboard - only uppercase

关于winapi - 键盘的SendInput()-仅小写，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/11438110/