Files
OpenVR-AdvancedSettings-frame/src/tabcontrollers/keyboardinput/KeyboardInputWindows.cpp
T

135 lines
4.0 KiB
C++

#include "KeyboardInputWindows.h"
#include <Windows.h>
#include "../../logging.h"
namespace advsettings {
void fillKiStruct(INPUT& ip, WORD scanCode, bool keyup) {
ip.type = INPUT_KEYBOARD;
ip.ki.wVk = scanCode;
if (keyup) {
ip.ki.dwFlags = KEYEVENTF_KEYUP;
} else {
ip.ki.dwFlags = 0;
}
ip.ki.wScan = 0;
ip.ki.dwExtraInfo = 0;
ip.ki.time = 0;
};
void sendKeyboardInputRaw(int inputCount, LPINPUT input) {
if ((inputCount > 0) && !SendInput(static_cast<UINT>(inputCount), input, sizeof(INPUT))) {
char *err;
auto errCode = GetLastError();
if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
nullptr,
errCode,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
(LPTSTR)&err,
0,
nullptr)){
LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
} else {
LOG(ERROR) << "Error calling SendInput(): " << err;
}
}
}
void KeyboardInputWindows::sendKeyboardInput(QString input)
{
int len = input.length();
if (len > 0) {
LPINPUT ips = new INPUT[static_cast<unsigned int>(len) * 5 + 3];
int ii = 0;
bool shiftPressed = false;
bool ctrlPressed = false;
bool altPressed = false;
for (int i = 0; i < len; i++) {
short tmp = VkKeyScan(input.at(i).toLatin1());
WORD c = tmp & 0xFF;
short shiftState = tmp >> 8;
bool isShift = shiftState & 1;
bool isCtrl = shiftState & 2;
bool isAlt = shiftState & 4;
if (isShift && !shiftPressed) {
fillKiStruct(ips[ii++], VK_SHIFT, false);
shiftPressed = true;
} else if (!isShift && shiftPressed) {
fillKiStruct(ips[ii++], VK_SHIFT, true);
shiftPressed = false;
}
if (isCtrl && !ctrlPressed) {
fillKiStruct(ips[ii++], VK_CONTROL, false);
ctrlPressed = true;
} else if (!isCtrl && ctrlPressed) {
fillKiStruct(ips[ii++], VK_CONTROL, true);
ctrlPressed = false;
}
if (isAlt && !altPressed) {
fillKiStruct(ips[ii++], VK_MENU, false);
altPressed = true;
} else if (!isAlt && altPressed) {
fillKiStruct(ips[ii++], VK_MENU, true);
altPressed = false;
}
fillKiStruct(ips[ii++], c, false);
fillKiStruct(ips[ii++], c, true);
}
if (shiftPressed) {
fillKiStruct(ips[ii++], VK_SHIFT, true);
shiftPressed = false;
}
if (ctrlPressed) {
fillKiStruct(ips[ii++], VK_CONTROL, true);
ctrlPressed = false;
}
if (altPressed) {
fillKiStruct(ips[ii++], VK_MENU, true);
altPressed = false;
}
sendKeyboardInputRaw(ii, ips);
delete ips;
}
}
void KeyboardInputWindows::sendKeyboardEnter()
{
LPINPUT ips = new INPUT[2];
fillKiStruct(ips[0], VK_RETURN, false);
fillKiStruct(ips[1], VK_RETURN, true);
sendKeyboardInputRaw(2, ips);
delete ips;
}
void KeyboardInputWindows::sendKeyboardBackspace(int count)
{
if (count > 0) {
// We ensure that count is nonnegative, therefore safe cast.
LPINPUT ips = new INPUT[static_cast<unsigned int>(count) * 2];
for (int i = 0; i < count; i++) {
fillKiStruct(ips[2 * i], VK_BACK, false);
fillKiStruct(ips[2 * i + 1], VK_BACK, true);
}
sendKeyboardInputRaw(count * 2, ips);
delete ips;
}
}
void KeyboardInputWindows::sendKeyboardAltTab()
{
LPINPUT ips = new INPUT[4];
// VK_MENU is alt
fillKiStruct(ips[0], VK_MENU, false);
fillKiStruct(ips[1], VK_TAB, false);
fillKiStruct(ips[2], VK_TAB, true);
fillKiStruct(ips[3], VK_MENU, true);
sendKeyboardInputRaw(4, ips);
delete ips;
}
}