- 1 year ago
NASM AllocConsole, how set focus on it?
If you're using the AllocConsole
function in NASM to create a new console window, setting focus to it isn't a straightforward process using just NASM alone. The AllocConsole
function is a Windows API function, and controlling focus requires additional interaction with the Windows API.
Here's an overview of how you might achieve this using NASM along with some C code to interact with the Windows API:
Allocate the Console:
In your NASM code, use theAllocConsole
function to create a new console window.assemblyextern AllocConsole
call AllocConsole
Write a C Wrapper:
Write a small C program that uses the Windows API to find the console window's handle and set the focus to it. Save this program assetfocus.c
.c#include <windows.h>
int main() {
HWND hwndConsole = GetConsoleWindow();
SetForegroundWindow(hwndConsole);
return 0;
}
Compile the C Program:
Use a C compiler like GCC to compile thesetfocus.c
program. For example:shgcc -o setfocus.exe setfocus.c
Run the C Program from NASM:
In your NASM code, use thesystem
function (from C standard library) to run the compiledsetfocus.exe
program:assemblyextern system
section .data
cmd db "setfocus.exe", 0
section .text
call system
Please note that this approach involves using a C program to interact with the Windows API for setting focus, as NASM itself doesn't directly provide mechanisms for controlling window focus.
Keep in mind that this solution might have limitations depending on the context in which you're working, and it's generally more complex than simple NASM code due to the interplay between assembly and C code.