Added keyboard input utilities. Allows to send text input as emulated key strokes to the active application.

2016-12-29 16:02:17 +01:00
parent 950ebf5b08
commit 93484d2bdc
8 changed files with 307 additions and 0 deletions
@@ -0,0 +1,149 @@
+#include "UtilitiesTabController.h"
+#include <QQuickWindow>
+#include "../overlaycontroller.h"
+#include <Windows.h>
+
+// application namespace
+namespace advsettings {
+
+
+	void UtilitiesTabController::initStage1() {
+	}
+
+	void UtilitiesTabController::initStage2(OverlayController * parent, QQuickWindow * widget) {
+		this->parent = parent;
+		this->widget = widget;
+	}
+
+	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 UtilitiesTabController::sendKeyboardInput(QString input) {
+		int len = input.length();
+		if (len > 0) {
+			LPINPUT ips = new INPUT[len * 5 + 3];
+			unsigned 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;
+			}
+			if (!SendInput(ii, ips, sizeof(INPUT))) {
+				char *err;
+				auto errCode = GetLastError();
+				if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+						NULL,
+						errCode,
+						MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+						(LPTSTR)&err,
+						0,
+						NULL)){
+					LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+				} else {
+					LOG(ERROR) << "Error calling SendInput(): " << err;
+				}
+			}
+			delete ips;
+		}
+	}
+
+	void UtilitiesTabController::sendKeyboardEnter() {
+		LPINPUT ips = new INPUT[2];
+		fillKiStruct(ips[0], VK_RETURN, false);
+		fillKiStruct(ips[1], VK_RETURN, true);
+		if (!SendInput(2, ips, sizeof(INPUT))) {
+			char *err;
+			auto errCode = GetLastError();
+			if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+				NULL,
+				errCode,
+				MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+				(LPTSTR)&err,
+				0,
+				NULL)) {
+				LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+			} else {
+				LOG(ERROR) << "Error calling SendInput(): " << err;
+			}
+		}
+		delete ips;
+	}
+
+	void UtilitiesTabController::sendKeyboardBackspace(int count) {
+		if (count > 0) {
+			LPINPUT ips = new INPUT[count * 2];
+			for (int i = 0; i < count; i++) {
+				fillKiStruct(ips[2 * i], VK_BACK, false);
+				fillKiStruct(ips[2 * i + 1], VK_BACK, true);
+			}
+			if (!SendInput(2 * count, ips, sizeof(INPUT))) {
+				char *err;
+				auto errCode = GetLastError();
+				if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+					NULL,
+					errCode,
+					MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // default language
+					(LPTSTR)&err,
+					0,
+					NULL)) {
+					LOG(ERROR) << "Error calling SendInput(): Could not get error message (" << errCode << ")";
+				} else {
+					LOG(ERROR) << "Error calling SendInput(): " << err;
+				}
+			}
+			delete ips;
+		}
+	}
+
+} // namespace advconfig