- 1 year ago
Using a string with the SendInput Function on Windows
To use the SendInput
function with a string on Windows, you'll need to convert the string into a series of keyboard input events. Here's an example of how you can achieve this using C++:
cpp#include <Windows.h>
#include <string>
// Function to simulate keyboard input events from a string
void SendStringInput(const std::string& inputString)
{
INPUT inputs[inputString.length()];
for (size_t i = 0; i < inputString.length(); ++i)
{
inputs[i].type = INPUT_KEYBOARD;
inputs[i].ki.wVk = 0; // Virtual key code
inputs[i].ki.wScan = inputString[i]; // Unicode character
inputs[i].ki.dwFlags = KEYEVENTF_UNICODE;
inputs[i].ki.time = 0;
inputs[i].ki.dwExtraInfo = 0;
}
// Send the input events
SendInput(static_cast<UINT>(inputString.length()), inputs, sizeof(INPUT));
}
int main()
{
std::string myString = "Hello, World!";
SendStringInput(myString);
return 0;
}
In this example, the SendStringInput
function takes a std::string
as input. It then creates an array of INPUT
structures, where each structure represents a keyboard input event. Each character in the input string is converted into an individual keyboard input event.
The wScan
member of the KEYBDINPUT
structure holds the Unicode value of the character. The KEYEVENTF_UNICODE
flag indicates that the wScan
member should be used as a Unicode character rather than a virtual key code.
Finally, the SendInput
function is called with the array of input events to send them to the system as if they were typed on the keyboard.
Remember to include the necessary headers (Windows.h
for the SendInput
function) and link against the appropriate library (e.g., User32.lib
).