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Add CLI help and version flags #32

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Add CLI help and version flags #32

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70b7132
add cli help and version flags
leidraisyana May 22, 2026
405795d
Move <windows.h> before <shellapi.h> so its types are defined
vincere-mori May 23, 2026
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44 changes: 44 additions & 0 deletions src/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,12 @@
// along with this program. If not, see https://www.gnu.org/licenses/.

#include <windows.h>
#include <shellapi.h>
#include <stdio.h>
#include <wchar.h>

#include "../include/gui.h"
#include "../include/version.h"

/* Force NVIDIA Optimus and AMD switchable-graphics systems to use the
* high-performance discrete GPU for this process.
Expand All @@ -25,11 +29,51 @@
__declspec(dllexport) unsigned long NvOptimusEnablement = 1;
__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;

static void attach_output_console(void)
{
FILE *stream;

if (!AttachConsole(ATTACH_PARENT_PROCESS)) {
AllocConsole();
}

freopen_s(&stream, "CONOUT$", "w", stdout);
freopen_s(&stream, "CONOUT$", "w", stderr);
}

static int handle_command_line_flags(void)
{
int argc = 0;
int handled = 0;
LPWSTR *argv = CommandLineToArgvW(GetCommandLineW(), &argc);

if (argv == NULL) {
return 0;
}

if (argc == 2 && wcscmp(argv[1], L"--version") == 0) {
attach_output_console();
printf("FSP.DMRCrack %s\n", DMRCRACK_VERSION);
handled = 1;
} else if (argc == 2 && wcscmp(argv[1], L"--help") == 0) {
attach_output_console();
printf("Usage: dmrcrack.exe [--help] [--version]\n");
handled = 1;
}

LocalFree(argv);
return handled;
}

int WINAPI WinMain(HINSTANCE h_instance, HINSTANCE h_prev, LPSTR lp_cmd_line, int n_cmd_show)
{
(void)h_prev;
(void)lp_cmd_line;

if (handle_command_line_flags()) {
return 0;
}

/* Enable per-monitor DPI awareness for crisp rendering on high-DPI displays */
SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);

Expand Down